diff --git a/CHANGELOG.md b/CHANGELOG.md
index f6f4623b55..914b0187aa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,14 @@
+<a name="v0.3.0"></a>
+## v0.3.0 (2013-11-18)
+
+
+#### Features
+
+* **draggable:**
+  * method to set drag limits dynamically ([d4482ec1](http://github.com/ducksboard/gridster.js/commit/d4482ec1476f8a0b6fb6cdeb25b7774ef678d81c))
+  * support horizontal scrolling while dragging ([ae4921b7](http://github.com/ducksboard/gridster.js/commit/ae4921b70798944211267cacf8a89e62d0818369))
+* **gridster:** increase grid width when dragging or resizing ([b61df653](http://github.com/ducksboard/gridster.js/commit/b61df6535f728970fb8c6f25a208275dbde66550))
+
 <a name="v0.2.1"></a>
 ### v0.2.1 (2013-10-28)
 
diff --git a/dist/jquery.gridster.css b/dist/jquery.gridster.css
index f87f63af6a..cd16547c66 100644
--- a/dist/jquery.gridster.css
+++ b/dist/jquery.gridster.css
@@ -1,4 +1,4 @@
-/*! gridster.js - v0.2.1 - 2013-10-28
+/*! gridster.js - v0.3.0 - 2013-11-19
 * http://gridster.net/
 * Copyright (c) 2013 ducksboard; Licensed MIT */
 
@@ -8,11 +8,11 @@
 
 .gridster > * {
     margin: 0 auto;
-    -webkit-transition: height .4s;
-    -moz-transition: height .4s;
-    -o-transition: height .4s;
-    -ms-transition: height .4s;
-    transition: height .4s;
+    -webkit-transition: height .4s, width .4s;
+    -moz-transition: height .4s, width .4s;
+    -o-transition: height .4s, width .4s;
+    -ms-transition: height .4s, width .4s;
+    transition: height .4s, width .4s;
 }
 
 .gridster .gs-w {
diff --git a/dist/jquery.gridster.js b/dist/jquery.gridster.js
index 5ec45d6202..4859e7da09 100644
--- a/dist/jquery.gridster.js
+++ b/dist/jquery.gridster.js
@@ -1,4 +1,4 @@
-/*! gridster.js - v0.2.1 - 2013-10-28
+/*! gridster.js - v0.3.0 - 2013-11-19
 * http://gridster.net/
 * Copyright (c) 2013 ducksboard; Licensed MIT */
 
@@ -138,7 +138,7 @@
         this.$element = el;
         this.last_colliders = [];
         this.last_colliders_coords = [];
-        if (typeof colliders === 'string' || colliders instanceof jQuery) {
+        if (typeof colliders === 'string' || colliders instanceof $) {
             this.$colliders = $(colliders,
                  this.options.colliders_context).not(this.$element);
         }else{
@@ -385,6 +385,7 @@
     };
 
     var $window = $(window);
+    var dir_map = { x : 'left', y : 'top' };
     var isTouch = !!('ontouchstart' in window);
     var pointer_events = {
         start: isTouch ? 'touchstart.gridster-draggable' : 'mousedown.gridster-draggable',
@@ -392,6 +393,10 @@
         end: isTouch ? 'touchend.gridster-draggable' : 'mouseup.gridster-draggable'
     };
 
+    var capitalize = function(str) {
+        return str.charAt(0).toUpperCase() + str.slice(1);
+    };
+
     /**
     * Basic drag implementation for DOM elements inside a container.
     * Provide start/stop/drag callbacks.
@@ -431,13 +436,13 @@
     var fn = Draggable.prototype;
 
     fn.init = function() {
-        this.calculate_positions();
+        this.calculate_dimensions();
         this.$container.css('position', 'relative');
         this.disabled = false;
         this.events();
 
         $(window).bind('resize.gridster-draggable',
-            throttle($.proxy(this.calculate_positions, this), 200));
+            throttle($.proxy(this.calculate_dimensions, this), 200));
     };
 
     fn.events = function() {
@@ -483,9 +488,10 @@
             mouse_actual_pos.left - this.mouse_init_pos.left);
         var diff_y = Math.round(mouse_actual_pos.top - this.mouse_init_pos.top);
 
-        var left = Math.round(this.el_init_offset.left + diff_x - this.baseX);
-        var top = Math.round(
-            this.el_init_offset.top + diff_y - this.baseY + this.scrollOffset);
+        var left = Math.round(this.el_init_offset.left +
+            diff_x - this.baseX + this.scroll_offset_x);
+        var top = Math.round(this.el_init_offset.top +
+            diff_y - this.baseY + this.scroll_offset_y);
 
         if (this.options.limit) {
             if (left > this.player_max_left) {
@@ -503,8 +509,8 @@
             pointer: {
                 left: mouse_actual_pos.left,
                 top: mouse_actual_pos.top,
-                diff_left: diff_x,
-                diff_top: diff_y + this.scrollOffset
+                diff_left: diff_x + this.scroll_offset_x,
+                diff_top: diff_y + this.scroll_offset_y
             }
         };
     };
@@ -519,42 +525,69 @@
     };
 
 
-    fn.manage_scroll = function(data) {
-        /* scroll document */
-        var nextScrollTop;
-        var scrollTop = $window.scrollTop();
-        var min_window_y = scrollTop;
-        var max_window_y = min_window_y + this.window_height;
+    fn.set_limits = function(container_width) {
+        container_width || (container_width = this.$container.width());
+        this.player_max_left = (container_width - this.player_width +
+            - this.options.offset_left);
 
-        var mouse_down_zone = max_window_y - 50;
-        var mouse_up_zone = min_window_y + 50;
+        this.options.container_width = container_width;
 
-        var abs_mouse_left = data.pointer.left;
-        var abs_mouse_top = min_window_y + data.pointer.top;
-
-        var max_player_y = (this.doc_height - this.window_height +
-            this.player_height);
-
-        if (abs_mouse_top >= mouse_down_zone) {
-            nextScrollTop = scrollTop + 30;
-            if (nextScrollTop < max_player_y) {
-                $window.scrollTop(nextScrollTop);
-                this.scrollOffset = this.scrollOffset + 30;
-            }
-        }
-
-        if (abs_mouse_top <= mouse_up_zone) {
-            nextScrollTop = scrollTop - 30;
-            if (nextScrollTop > 0) {
-                $window.scrollTop(nextScrollTop);
-                this.scrollOffset = this.scrollOffset - 30;
-            }
-        }
+        return this;
     };
 
 
-    fn.calculate_positions = function(e) {
+    fn.scroll_in = function(axis, data) {
+        var dir_prop = dir_map[axis];
+
+        var area_size = 50;
+        var scroll_inc = 30;
+
+        var is_x = axis === 'x';
+        var window_size = is_x ? this.window_width : this.window_height;
+        var doc_size = is_x ? $(document).width() : $(document).height();
+        var player_size = is_x ? this.$player.width() : this.$player.height();
+
+        var next_scroll;
+        var scroll_offset = $window['scroll' + capitalize(dir_prop)]();
+        var min_window_pos = scroll_offset;
+        var max_window_pos = min_window_pos + window_size;
+
+        var mouse_next_zone = max_window_pos - area_size;  // down/right
+        var mouse_prev_zone = min_window_pos + area_size;  // up/left
+
+        var abs_mouse_pos = min_window_pos + data.pointer[dir_prop];
+
+        var max_player_pos = (doc_size - window_size + player_size);
+
+        if (abs_mouse_pos >= mouse_next_zone) {
+            next_scroll = scroll_offset + scroll_inc;
+            if (next_scroll < max_player_pos) {
+                $window['scroll' + capitalize(dir_prop)](next_scroll);
+                this['scroll_offset_' + axis] += scroll_inc;
+            }
+        }
+
+        if (abs_mouse_pos <= mouse_prev_zone) {
+            next_scroll = scroll_offset - scroll_inc;
+            if (next_scroll > 0) {
+                $window['scroll' + capitalize(dir_prop)](next_scroll);
+                this['scroll_offset_' + axis] -= scroll_inc;
+            }
+        }
+
+        return this;
+    };
+
+
+    fn.manage_scroll = function(data) {
+        this.scroll_in('x', data);
+        this.scroll_in('y', data);
+    };
+
+
+    fn.calculate_dimensions = function(e) {
         this.window_height = $window.height();
+        this.window_width = $window.width();
     };
 
 
@@ -614,7 +647,7 @@
         var offset = this.$container.offset();
         this.baseX = Math.round(offset.left);
         this.baseY = Math.round(offset.top);
-        this.doc_height = $(document).height();
+        this.initial_container_width = this.options.container_width || this.$container.width();
 
         if (this.options.helper === 'clone') {
             this.$helper = this.$player.clone()
@@ -624,14 +657,13 @@
             this.helper = false;
         }
 
-        this.scrollOffset = 0;
+        this.scroll_offset_y = 0;
+        this.scroll_offset_x = 0;
         this.el_init_offset = this.$player.offset();
         this.player_width = this.$player.width();
         this.player_height = this.$player.height();
 
-        var container_width = this.options.container_width || this.$container.width();
-        this.player_max_left = (container_width - this.player_width +
-            this.options.offset_left);
+        this.set_limits(this.options.container_width);
 
         if (this.options.start) {
             this.options.start.call(this.$player, e, this.get_drag_data(e));
@@ -734,9 +766,10 @@
         extra_rows: 0,
         extra_cols: 0,
         min_cols: 1,
-        max_cols: null,
+        max_cols: Infinity,
         min_rows: 15,
         max_size_x: false,
+        autogrow_cols: false,
         autogenerate_stylesheet: true,
         avoid_overlapped_widgets: true,
         serialize_params: function($w, wgd) {
@@ -856,6 +889,7 @@
         this.generate_grid_and_stylesheet();
         this.get_widgets_from_DOM();
         this.set_dom_grid_height();
+        this.set_dom_grid_width();
         this.$wrapper.addClass('ready');
         this.draggable();
         this.options.resize.enabled && this.resizable();
@@ -1017,38 +1051,36 @@
     * @param {HTMLElement} $widget The jQuery wrapped HTMLElement
     *  representing the widget.
     * @param {Number} size_x The number of columns that will occupy the widget.
-    * @param {Number} size_y The number of rows that will occupy the widget.
-    * @param {Boolean} [reposition] Set to false to not move the widget to
-    *  the left if there is insufficient space on the right.
     *  By default <code>size_x</code> is limited to the space available from
     *  the column where the widget begins, until the last column to the right.
+    * @param {Number} size_y The number of rows that will occupy the widget.
     * @param {Function} [callback] Function executed when the widget is removed.
     * @return {HTMLElement} Returns $widget.
     */
-    fn.resize_widget = function($widget, size_x, size_y, reposition, callback) {
+    fn.resize_widget = function($widget, size_x, size_y, callback) {
         var wgd = $widget.coords().grid;
-        reposition !== false && (reposition = true);
-        size_x || (size_x = wgd.size_x);
-        size_y || (size_y = wgd.size_y);
-
-        if (size_x > this.cols) {
-            size_x = this.cols;
-        }
-
+        var col = wgd.col;
+        var max_cols = this.options.max_cols;
         var old_size_y = wgd.size_y;
         var old_col = wgd.col;
         var new_col = old_col;
 
-        if (reposition && old_col + size_x - 1 > this.cols) {
-            var diff = old_col + (size_x - 1) - this.cols;
-            var c = old_col - diff;
-            new_col = Math.max(1, c);
+        size_x || (size_x = wgd.size_x);
+        size_y || (size_y = wgd.size_y);
+
+        if (max_cols !== Infinity) {
+            size_x = Math.min(size_x, max_cols - col + 1);
         }
 
         if (size_y > old_size_y) {
             this.add_faux_rows(Math.max(size_y - old_size_y, 0));
         }
 
+        var player_rcol = (col + size_x - 1);
+        if (player_rcol > this.cols) {
+            this.add_faux_cols(player_rcol - this.cols);
+        }
+
         var new_grid_data = {
             col: new_col,
             row: wgd.row,
@@ -1059,6 +1091,7 @@
         this.mutate_widget_in_gridmap($widget, wgd, new_grid_data);
 
         this.set_dom_grid_height();
+        this.set_dom_grid_width();
 
         if (callback) {
             callback.call(this, new_grid_data.size_x, new_grid_data.size_y);
@@ -1297,7 +1330,7 @@
     * @return {Class} Returns the instance of the Gridster Class.
     */
     fn.remove_widget = function(el, silent, callback) {
-        var $el = el instanceof jQuery ? el : $(el);
+        var $el = el instanceof $ ? el : $(el);
         var wgd = $el.coords().grid;
 
         // if silent is a function assume it's a callback
@@ -1495,7 +1528,9 @@
         var self = this;
         var draggable_options = $.extend(true, {}, this.options.draggable, {
             offset_left: this.options.widget_margins[0],
+            offset_top: this.options.widget_margins[1],
             container_width: this.container_width,
+            limit: true,
             ignore_dragging: ['INPUT', 'TEXTAREA', 'SELECT', 'BUTTON',
                 '.' + this.options.resize.handle_class],
             start: function(event, ui) {
@@ -1537,6 +1572,8 @@
             offset_left: this.options.widget_margins[0],
             container_width: this.container_width,
             move_element: false,
+            resize: true,
+            limit: this.options.autogrow_cols ? false : true,
             start: $.proxy(this.on_start_resize, this),
             stop: $.proxy(function(event, ui) {
                 delay($.proxy(function() {
@@ -1579,13 +1616,22 @@
     fn.on_start_drag = function(event, ui) {
         this.$helper.add(this.$player).add(this.$wrapper).addClass('dragging');
 
+        this.highest_col = this.get_highest_occupied_cell().col;
+
         this.$player.addClass('player');
         this.player_grid_data = this.$player.coords().grid;
         this.placeholder_grid_data = $.extend({}, this.player_grid_data);
 
-        //set new grid height along the dragging period
-        this.$el.css('height', this.$el.height() +
-          (this.player_grid_data.size_y * this.min_widget_height));
+        this.set_dom_grid_height(this.$el.height() +
+                      (this.player_grid_data.size_y * this.min_widget_height));
+
+        this.set_dom_grid_width(this.highest_col + 1);
+
+        // auto grow cols
+        var cols_diff = this.cols - this.highest_col;
+        if (cols_diff < this.player_grid_data.size_x) {
+            this.add_faux_cols(this.player_grid_data.size_x - cols_diff);
+        }
 
         var colliders = this.faux_grid;
         var coords = this.$player.data('coords').coords;
@@ -1649,6 +1695,19 @@
             this.on_stop_overlapping_row
         );
 
+        //auto grow cols
+        if (this.options.autogrow_cols) {
+            var prcol = this.placeholder_grid_data.col +
+                this.placeholder_grid_data.size_x - 1;
+            if (prcol === this.highest_col) {
+                if (prcol < this.cols) {
+                    this.set_dom_grid_width(prcol + 1);
+                }
+                this.highest_col = prcol + 1;
+                this.drag_api.set_limits(this.container_width);
+            }
+        }
+
         if (this.helper && this.$player) {
             this.$player.css({
                 'left': ui.position.left,
@@ -1720,6 +1779,11 @@
         this.cells_occupied_by_player = {};
 
         this.set_dom_grid_height();
+        this.set_dom_grid_width();
+
+        if (this.options.autogrow_cols) {
+            this.drag_api.set_limits(this.container_width);
+        }
     };
 
 
@@ -1739,12 +1803,16 @@
         this.resize_initial_height = this.resize_coords.coords.height;
         this.resize_initial_sizex = this.resize_coords.grid.size_x;
         this.resize_initial_sizey = this.resize_coords.grid.size_y;
+        this.resize_initial_col = this.resize_coords.grid.col;
         this.resize_last_sizex = this.resize_initial_sizex;
         this.resize_last_sizey = this.resize_initial_sizey;
+
         this.resize_max_size_x = Math.min(this.resize_wgd.max_size_x ||
-            this.options.resize.max_size[0], this.cols - this.resize_wgd.col + 1);
+            this.options.resize.max_size[0],
+            this.options.max_cols - this.resize_initial_col + 1);
         this.resize_max_size_y = this.resize_wgd.max_size_y ||
             this.options.resize.max_size[1];
+        this.resize_initial_last_col = this.get_highest_occupied_cell().col;
 
         this.resize_dir = {
             right: ui.$player.is('.' + this.resize_handle_class + '-x'),
@@ -1799,6 +1867,12 @@
                 });
         }, this), 300);
 
+        this.set_dom_grid_width();
+
+        if (this.options.autogrow_cols) {
+            this.drag_api.set_limits(this.container_width);
+        }
+
         if (this.options.resize.stop) {
             this.options.resize.stop.call(this, event, ui, this.$resized_widget);
         }
@@ -1845,6 +1919,20 @@
             size_x = this.resize_initial_sizex;
         }
 
+
+        if (this.options.autogrow_cols) {
+            // auto grow cols
+            var last_widget_col = this.resize_initial_col + size_x - 1;
+            if (this.options.autogrow_cols && this.resize_initial_last_col <= last_widget_col) {
+                this.set_dom_grid_width(last_widget_col + 1);
+
+                if (this.cols < last_widget_col) {
+                    this.add_faux_cols(last_widget_col - this.cols);
+                }
+            }
+        }
+
+
         var css_props = {};
         !this.resize_dir.bottom && (css_props.width = Math.min(
             this.resize_initial_width + rel_x, max_width));
@@ -1856,7 +1944,7 @@
         if (size_x !== this.resize_last_sizex ||
             size_y !== this.resize_last_sizey) {
 
-            this.resize_widget(this.$resized_widget, size_x, size_y, false);
+            this.resize_widget(this.$resized_widget, size_x, size_y);
 
             this.$resize_preview_holder.css({
                 'width': '',
@@ -3082,7 +3170,7 @@
     fn.get_cells_occupied = function(el_grid_data) {
         var cells = { cols: [], rows: []};
         var i;
-        if (arguments[1] instanceof jQuery) {
+        if (arguments[1] instanceof $) {
             el_grid_data = arguments[1].coords().grid;
         }
 
@@ -3166,7 +3254,7 @@
 
         var cr, max;
         var action = type + '/' + direction;
-        if (arguments[2] instanceof jQuery) {
+        if (arguments[2] instanceof $) {
             var el_grid_data = arguments[2].coords().grid;
             col = el_grid_data.col;
             row = el_grid_data.row;
@@ -3250,26 +3338,23 @@
     fn.get_highest_occupied_cell = function() {
         var r;
         var gm = this.gridmap;
-        var rows = [];
+        var rl = gm[1].length;
+        var rows = [], cols = [];
         var row_in_col = [];
         for (var c = gm.length - 1; c >= 1; c--) {
-            for (r = gm[c].length - 1; r >= 1; r--) {
+            for (r = rl - 1; r >= 1; r--) {
                 if (this.is_widget(c, r)) {
                     rows.push(r);
-                    row_in_col[r] = c;
+                    cols.push(c);
                     break;
                 }
             }
         }
 
-        var highest_row = Math.max.apply(Math, rows);
-
-        this.highest_occupied_cell = {
-            col: row_in_col[highest_row],
-            row: highest_row
+        return {
+            col: Math.max.apply(Math, cols),
+            row: Math.max.apply(Math, rows)
         };
-
-        return this.highest_occupied_cell;
     };
 
 
@@ -3305,9 +3390,34 @@
     * @method set_dom_grid_height
     * @return {Object} Returns the instance of the Gridster class.
     */
-    fn.set_dom_grid_height = function() {
-        var r = this.get_highest_occupied_cell().row;
-        this.$el.css('height', r * this.min_widget_height);
+    fn.set_dom_grid_height = function(height) {
+        if (typeof height === 'undefined') {
+            var r = this.get_highest_occupied_cell().row;
+            height = r * this.min_widget_height;
+        }
+
+        this.container_height = height;
+        this.$el.css('height', this.container_height);
+        return this;
+    };
+
+    /**
+    * Set the current width of the parent grid.
+    *
+    * @method set_dom_grid_width
+    * @return {Object} Returns the instance of the Gridster class.
+    */
+    fn.set_dom_grid_width = function(cols) {
+        var width;
+
+        if (typeof cols === 'undefined') {
+            cols = this.get_highest_occupied_cell().col;
+        }
+
+        cols = Math.min(this.options.max_cols,
+            Math.max(cols, this.options.min_cols));
+        this.container_width = cols * this.min_widget_width;
+        this.$el.css('width', this.container_width);
         return this;
     };
 
@@ -3509,8 +3619,9 @@
     fn.add_faux_cols = function(cols) {
         var actual_cols = this.cols;
         var max_cols = actual_cols + (cols || 1);
+        max_cols = Math.min(max_cols, this.options.max_cols);
 
-        for (var c = actual_cols; c < max_cols; c++) {
+        for (var c = actual_cols + 1; c <= max_cols; c++) {
             for (var r = this.rows; r >= 1; r--) {
                 this.add_faux_cell(r, c);
             }
@@ -3573,7 +3684,6 @@
     */
     fn.generate_grid_and_stylesheet = function() {
         var aw = this.$wrapper.width();
-        var ah = this.$wrapper.height();
         var max_cols = this.options.max_cols;
 
         var cols = Math.floor(aw / this.min_widget_width) +
@@ -3588,28 +3698,23 @@
 
         var min_cols = Math.max.apply(Math, actual_cols);
 
+        this.cols = Math.max(min_cols, cols, this.options.min_cols);
+
+        if (max_cols !== Infinity && max_cols >= min_cols && max_cols < this.cols) {
+            this.cols = max_cols;
+        }
+
         // get all rows that could be occupied by the current widgets
         var max_rows = this.options.extra_rows;
         this.$widgets.each(function(i, w) {
             max_rows += (+$(w).attr('data-sizey'));
         });
 
-        this.cols = Math.max(min_cols, cols, this.options.min_cols);
-
-        if (max_cols && max_cols >= min_cols && max_cols < this.cols) {
-            this.cols = max_cols;
-        }
-
         this.rows = Math.max(max_rows, this.options.min_rows);
 
         this.baseX = ($(window).width() - aw) / 2;
         this.baseY = this.$wrapper.offset().top;
 
-        // left and right gutters not included
-        this.container_width = (this.cols *
-            this.options.widget_base_dimensions[0]) + ((this.cols - 1) * 2 *
-            this.options.widget_margins[0]);
-
         if (this.options.autogenerate_stylesheet) {
             this.generate_stylesheet();
         }
diff --git a/dist/jquery.gridster.min.css b/dist/jquery.gridster.min.css
index 9e45717429..6f90025a69 100644
--- a/dist/jquery.gridster.min.css
+++ b/dist/jquery.gridster.min.css
@@ -1,2 +1,2 @@
-/*! gridster.js - v0.2.1 - 2013-10-28 - * http://gridster.net/ - Copyright (c) 2013 ducksboard; Licensed MIT */ 
-.gridster{position:relative}.gridster>*{margin:0 auto;-webkit-transition:height .4s;-moz-transition:height .4s;-o-transition:height .4s;-ms-transition:height .4s;transition:height .4s}.gridster .gs-w{z-index:2;position:absolute}.ready .gs-w:not(.preview-holder){-webkit-transition:opacity .3s,left .3s,top .3s;-moz-transition:opacity .3s,left .3s,top .3s;-o-transition:opacity .3s,left .3s,top .3s;transition:opacity .3s,left .3s,top .3s}.ready .gs-w:not(.preview-holder),.ready .resize-preview-holder{-webkit-transition:opacity .3s,left .3s,top .3s,width .3s,height .3s;-moz-transition:opacity .3s,left .3s,top .3s,width .3s,height .3s;-o-transition:opacity .3s,left .3s,top .3s,width .3s,height .3s;transition:opacity .3s,left .3s,top .3s,width .3s,height .3s}.gridster .preview-holder{z-index:1;position:absolute;background-color:#fff;border-color:#fff;opacity:.3}.gridster .player-revert{z-index:10!important;-webkit-transition:left .3s,top .3s!important;-moz-transition:left .3s,top .3s!important;-o-transition:left .3s,top .3s!important;transition:left .3s,top .3s!important}.gridster .dragging,.gridster .resizing{z-index:10!important;-webkit-transition:all 0s!important;-moz-transition:all 0s!important;-o-transition:all 0s!important;transition:all 0s!important}.gs-resize-handle{position:absolute;z-index:1}.gs-resize-handle-both{width:20px;height:20px;bottom:-8px;right:-8px;background-image:url(data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0iMS4wIiBzdGFuZGFsb25lPSJubyI/Pg08IS0tIEdlbmVyYXRvcjogQWRvYmUgRmlyZXdvcmtzIENTNiwgRXhwb3J0IFNWRyBFeHRlbnNpb24gYnkgQWFyb24gQmVhbGwgKGh0dHA6Ly9maXJld29ya3MuYWJlYWxsLmNvbSkgLiBWZXJzaW9uOiAwLjYuMSAgLS0+DTwhRE9DVFlQRSBzdmcgUFVCTElDICItLy9XM0MvL0RURCBTVkcgMS4xLy9FTiIgImh0dHA6Ly93d3cudzMub3JnL0dyYXBoaWNzL1NWRy8xLjEvRFREL3N2ZzExLmR0ZCI+DTxzdmcgaWQ9IlVudGl0bGVkLVBhZ2UlMjAxIiB2aWV3Qm94PSIwIDAgNiA2IiBzdHlsZT0iYmFja2dyb3VuZC1jb2xvcjojZmZmZmZmMDAiIHZlcnNpb249IjEuMSINCXhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgeG1sbnM6eGxpbms9Imh0dHA6Ly93d3cudzMub3JnLzE5OTkveGxpbmsiIHhtbDpzcGFjZT0icHJlc2VydmUiDQl4PSIwcHgiIHk9IjBweCIgd2lkdGg9IjZweCIgaGVpZ2h0PSI2cHgiDT4NCTxnIG9wYWNpdHk9IjAuMzAyIj4NCQk8cGF0aCBkPSJNIDYgNiBMIDAgNiBMIDAgNC4yIEwgNCA0LjIgTCA0LjIgNC4yIEwgNC4yIDAgTCA2IDAgTCA2IDYgTCA2IDYgWiIgZmlsbD0iIzAwMDAwMCIvPg0JPC9nPg08L3N2Zz4=);background-position:top left;background-repeat:no-repeat;cursor:se-resize;z-index:20}.gs-resize-handle-x{top:0;bottom:13px;right:-5px;width:10px;cursor:e-resize}.gs-resize-handle-y{left:0;right:13px;bottom:-5px;height:10px;cursor:s-resize}.gs-w:hover .gs-resize-handle,.resizing .gs-resize-handle{opacity:1}.gs-resize-handle,.gs-w.dragging .gs-resize-handle{opacity:0}.gs-resize-disabled .gs-resize-handle{display:none!important}[data-max-sizex="1"] .gs-resize-handle-x,[data-max-sizey="1"] .gs-resize-handle-y,[data-max-sizey="1"][data-max-sizex="1"] .gs-resize-handle{display:none!important}
\ No newline at end of file
+/*! gridster.js - v0.3.0 - 2013-11-19 - * http://gridster.net/ - Copyright (c) 2013 ducksboard; Licensed MIT */ 
+.gridster{position:relative}.gridster>*{margin:0 auto;-webkit-transition:height .4s,width .4s;-moz-transition:height .4s,width .4s;-o-transition:height .4s,width .4s;-ms-transition:height .4s,width .4s;transition:height .4s,width .4s}.gridster .gs-w{z-index:2;position:absolute}.ready .gs-w:not(.preview-holder){-webkit-transition:opacity .3s,left .3s,top .3s;-moz-transition:opacity .3s,left .3s,top .3s;-o-transition:opacity .3s,left .3s,top .3s;transition:opacity .3s,left .3s,top .3s}.ready .gs-w:not(.preview-holder),.ready .resize-preview-holder{-webkit-transition:opacity .3s,left .3s,top .3s,width .3s,height .3s;-moz-transition:opacity .3s,left .3s,top .3s,width .3s,height .3s;-o-transition:opacity .3s,left .3s,top .3s,width .3s,height .3s;transition:opacity .3s,left .3s,top .3s,width .3s,height .3s}.gridster .preview-holder{z-index:1;position:absolute;background-color:#fff;border-color:#fff;opacity:.3}.gridster .player-revert{z-index:10!important;-webkit-transition:left .3s,top .3s!important;-moz-transition:left .3s,top .3s!important;-o-transition:left .3s,top .3s!important;transition:left .3s,top .3s!important}.gridster .dragging,.gridster .resizing{z-index:10!important;-webkit-transition:all 0s!important;-moz-transition:all 0s!important;-o-transition:all 0s!important;transition:all 0s!important}.gs-resize-handle{position:absolute;z-index:1}.gs-resize-handle-both{width:20px;height:20px;bottom:-8px;right:-8px;background-image:url(data:image/svg+xml;base64,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);background-position:top left;background-repeat:no-repeat;cursor:se-resize;z-index:20}.gs-resize-handle-x{top:0;bottom:13px;right:-5px;width:10px;cursor:e-resize}.gs-resize-handle-y{left:0;right:13px;bottom:-5px;height:10px;cursor:s-resize}.gs-w:hover .gs-resize-handle,.resizing .gs-resize-handle{opacity:1}.gs-resize-handle,.gs-w.dragging .gs-resize-handle{opacity:0}.gs-resize-disabled .gs-resize-handle{display:none!important}[data-max-sizex="1"] .gs-resize-handle-x,[data-max-sizey="1"] .gs-resize-handle-y,[data-max-sizey="1"][data-max-sizex="1"] .gs-resize-handle{display:none!important}
\ No newline at end of file
diff --git a/dist/jquery.gridster.min.js b/dist/jquery.gridster.min.js
index 523b5887ec..910c3e3cdd 100644
--- a/dist/jquery.gridster.min.js
+++ b/dist/jquery.gridster.min.js
@@ -1,2 +1,2 @@
-/*! gridster.js - v0.2.1 - 2013-10-28 - * http://gridster.net/ - Copyright (c) 2013 ducksboard; Licensed MIT */ !function(a){function b(b){return b[0]&&a.isPlainObject(b[0])?this.data=b[0]:this.el=b,this.isCoords=!0,this.coords={},this.init(),this}var c=b.prototype;c.init=function(){this.set(),this.original_coords=this.get()},c.set=function(a,b){var c=this.el;if(c&&!a&&(this.data=c.offset(),this.data.width=c.width(),this.data.height=c.height()),c&&a&&!b){var d=c.offset();this.data.top=d.top,this.data.left=d.left}var e=this.data;return this.coords.x1=e.left,this.coords.y1=e.top,this.coords.x2=e.left+e.width,this.coords.y2=e.top+e.height,this.coords.cx=e.left+e.width/2,this.coords.cy=e.top+e.height/2,this.coords.width=e.width,this.coords.height=e.height,this.coords.el=c||!1,this},c.update=function(b){if(!b&&!this.el)return this;if(b){var c=a.extend({},this.data,b);return this.data=c,this.set(!0,!0)}return this.set(!0),this},c.get=function(){return this.coords},a.fn.coords=function(){if(this.data("coords"))return this.data("coords");var a=new b(this,arguments[0]);return this.data("coords",a),a}}(jQuery,window,document),function(a,b,c){function d(b,c,d){this.options=a.extend(e,d),this.$element=b,this.last_colliders=[],this.last_colliders_coords=[],"string"==typeof c||c instanceof jQuery?this.$colliders=a(c,this.options.colliders_context).not(this.$element):this.colliders=a(c),this.init()}var e={colliders_context:c.body},f=d.prototype;f.init=function(){this.find_collisions()},f.overlaps=function(a,b){var c=!1,d=!1;return(b.x1>=a.x1&&b.x1<=a.x2||b.x2>=a.x1&&b.x2<=a.x2||a.x1>=b.x1&&a.x2<=b.x2)&&(c=!0),(b.y1>=a.y1&&b.y1<=a.y2||b.y2>=a.y1&&b.y2<=a.y2||a.y1>=b.y1&&a.y2<=b.y2)&&(d=!0),c&&d},f.detect_overlapping_region=function(a,b){var c="",d="";return a.y1>b.cy&&a.y1<b.y2&&(c="N"),a.y2>b.y1&&a.y2<b.cy&&(c="S"),a.x1>b.cx&&a.x1<b.x2&&(d="W"),a.x2>b.x1&&a.x2<b.cx&&(d="E"),c+d||"C"},f.calculate_overlapped_area_coords=function(b,c){var d=Math.max(b.x1,c.x1),e=Math.max(b.y1,c.y1),f=Math.min(b.x2,c.x2),g=Math.min(b.y2,c.y2);return a({left:d,top:e,width:f-d,height:g-e}).coords().get()},f.calculate_overlapped_area=function(a){return a.width*a.height},f.manage_colliders_start_stop=function(b,c,d){for(var e=this.last_colliders_coords,f=0,g=e.length;g>f;f++)-1===a.inArray(e[f],b)&&c.call(this,e[f]);for(var h=0,i=b.length;i>h;h++)-1===a.inArray(b[h],e)&&d.call(this,b[h])},f.find_collisions=function(b){for(var c=this,d=[],e=[],f=this.colliders||this.$colliders,g=f.length,h=c.$element.coords().update(b||!1).get();g--;){var i=c.$colliders?a(f[g]):f[g],j=i.isCoords?i:i.coords(),k=j.get(),l=c.overlaps(h,k);if(l){var m=c.detect_overlapping_region(h,k);if("C"===m){var n=c.calculate_overlapped_area_coords(h,k),o=c.calculate_overlapped_area(n),p={area:o,area_coords:n,region:m,coords:k,player_coords:h,el:i};c.options.on_overlap&&c.options.on_overlap.call(this,p),d.push(j),e.push(p)}}}return(c.options.on_overlap_stop||c.options.on_overlap_start)&&this.manage_colliders_start_stop(d,c.options.on_overlap_start,c.options.on_overlap_stop),this.last_colliders_coords=d,e},f.get_closest_colliders=function(a){var b=this.find_collisions(a);return b.sort(function(a,b){return"C"===a.region&&"C"===b.region?a.coords.y1<b.coords.y1||a.coords.x1<b.coords.x1?-1:1:a.area<b.area?1:1}),b},a.fn.collision=function(a,b){return new d(this,a,b)}}(jQuery,window,document),function(a){a.delay=function(a,b){var c=Array.prototype.slice.call(arguments,2);return setTimeout(function(){return a.apply(null,c)},b)},a.debounce=function(a,b,c){var d;return function(){var e=this,f=arguments,g=function(){d=null,c||a.apply(e,f)};c&&!d&&a.apply(e,f),clearTimeout(d),d=setTimeout(g,b)}},a.throttle=function(a,b){var c,d,e,f,g,h,i=debounce(function(){g=f=!1},b);return function(){c=this,d=arguments;var j=function(){e=null,g&&a.apply(c,d),i()};return e||(e=setTimeout(j,b)),f?g=!0:h=a.apply(c,d),i(),f=!0,h}}}(window),function(a,b,c){function d(b,d){this.options=a.extend({},e,d),this.$body=a(c.body),this.$container=a(b),this.$dragitems=a(this.options.items,this.$container),this.is_dragging=!1,this.player_min_left=0+this.options.offset_left,this.init()}var e={items:"li",distance:1,limit:!0,offset_left:0,autoscroll:!0,ignore_dragging:["INPUT","TEXTAREA","SELECT","BUTTON"],handle:null,container_width:0,move_element:!0,helper:!1},f=a(b),g=!!("ontouchstart"in b),h={start:g?"touchstart.gridster-draggable":"mousedown.gridster-draggable",move:g?"touchmove.gridster-draggable":"mousemove.gridster-draggable",end:g?"touchend.gridster-draggable":"mouseup.gridster-draggable"},i=d.prototype;i.init=function(){this.calculate_positions(),this.$container.css("position","relative"),this.disabled=!1,this.events(),a(b).bind("resize.gridster-draggable",throttle(a.proxy(this.calculate_positions,this),200))},i.events=function(){this.$container.on("selectstart.gridster-draggable",a.proxy(this.on_select_start,this)),this.$container.on(h.start,this.options.items,a.proxy(this.drag_handler,this)),this.$body.on(h.end,a.proxy(function(a){this.is_dragging=!1,this.disabled||(this.$body.off(h.move),this.drag_start&&this.on_dragstop(a))},this))},i.get_actual_pos=function(a){var b=a.position();return b},i.get_mouse_pos=function(a){if(g){var b=a.originalEvent;a=b.touches.length?b.touches[0]:b.changedTouches[0]}return{left:a.clientX,top:a.clientY}},i.get_offset=function(a){a.preventDefault();var b=this.get_mouse_pos(a),c=Math.round(b.left-this.mouse_init_pos.left),d=Math.round(b.top-this.mouse_init_pos.top),e=Math.round(this.el_init_offset.left+c-this.baseX),f=Math.round(this.el_init_offset.top+d-this.baseY+this.scrollOffset);return this.options.limit&&(e>this.player_max_left?e=this.player_max_left:e<this.player_min_left&&(e=this.player_min_left)),{position:{left:e,top:f},pointer:{left:b.left,top:b.top,diff_left:c,diff_top:d+this.scrollOffset}}},i.get_drag_data=function(a){var b=this.get_offset(a);return b.$player=this.$player,b.$helper=this.helper?this.$helper:this.$player,b},i.manage_scroll=function(a){var b,c=f.scrollTop(),d=c,e=d+this.window_height,g=e-50,h=d+50;a.pointer.left;var i=d+a.pointer.top,j=this.doc_height-this.window_height+this.player_height;i>=g&&(b=c+30,j>b&&(f.scrollTop(b),this.scrollOffset=this.scrollOffset+30)),h>=i&&(b=c-30,b>0&&(f.scrollTop(b),this.scrollOffset=this.scrollOffset-30))},i.calculate_positions=function(){this.window_height=f.height()},i.drag_handler=function(b){if(b.target.nodeName,!this.disabled&&(1===b.which||g)&&!this.ignore_drag(b)){var c=this,d=!0;return this.$player=a(b.currentTarget),this.el_init_pos=this.get_actual_pos(this.$player),this.mouse_init_pos=this.get_mouse_pos(b),this.offsetY=this.mouse_init_pos.top-this.el_init_pos.top,this.$body.on(h.move,function(a){var b=c.get_mouse_pos(a),e=Math.abs(b.left-c.mouse_init_pos.left),f=Math.abs(b.top-c.mouse_init_pos.top);return e>c.options.distance||f>c.options.distance?d?(d=!1,c.on_dragstart.call(c,a),!1):(c.is_dragging===!0&&c.on_dragmove.call(c,a),!1):!1}),g?void 0:!1}},i.on_dragstart=function(b){if(b.preventDefault(),this.is_dragging)return this;this.drag_start=this.is_dragging=!0;var d=this.$container.offset();this.baseX=Math.round(d.left),this.baseY=Math.round(d.top),this.doc_height=a(c).height(),"clone"===this.options.helper?(this.$helper=this.$player.clone().appendTo(this.$container).addClass("helper"),this.helper=!0):this.helper=!1,this.scrollOffset=0,this.el_init_offset=this.$player.offset(),this.player_width=this.$player.width(),this.player_height=this.$player.height();var e=this.options.container_width||this.$container.width();return this.player_max_left=e-this.player_width+this.options.offset_left,this.options.start&&this.options.start.call(this.$player,b,this.get_drag_data(b)),!1},i.on_dragmove=function(a){var b=this.get_drag_data(a);this.options.autoscroll&&this.manage_scroll(b),this.options.move_element&&(this.helper?this.$helper:this.$player).css({position:"absolute",left:b.position.left,top:b.position.top});var c=this.last_position||b.position;return b.prev_position=c,this.options.drag&&this.options.drag.call(this.$player,a,b),this.last_position=b.position,!1},i.on_dragstop=function(a){var b=this.get_drag_data(a);return this.drag_start=!1,this.options.stop&&this.options.stop.call(this.$player,a,b),this.helper&&this.$helper.remove(),!1},i.on_select_start=function(a){return this.disabled||this.ignore_drag(a)?void 0:!1},i.enable=function(){this.disabled=!1},i.disable=function(){this.disabled=!0},i.destroy=function(){this.disable(),this.$container.off(".gridster-draggable"),this.$body.off(".gridster-draggable"),a(b).off(".gridster-draggable"),a.removeData(this.$container,"drag")},i.ignore_drag=function(b){return this.options.handle?!a(b.target).is(this.options.handle):a(b.target).is(this.options.ignore_dragging.join(", "))},a.fn.drag=function(a){return new d(this,a)}}(jQuery,window,document),function(a,b,c){function d(b,c){this.options=a.extend(!0,e,c),this.$el=a(b),this.$wrapper=this.$el.parent(),this.$widgets=this.$el.children(this.options.widget_selector).addClass("gs-w"),this.widgets=[],this.$changed=a([]),this.wrapper_width=this.$wrapper.width(),this.min_widget_width=2*this.options.widget_margins[0]+this.options.widget_base_dimensions[0],this.min_widget_height=2*this.options.widget_margins[1]+this.options.widget_base_dimensions[1],this.$style_tags=a([]),this.init()}var e={namespace:"",widget_selector:"li",widget_margins:[10,10],widget_base_dimensions:[400,225],extra_rows:0,extra_cols:0,min_cols:1,max_cols:null,min_rows:15,max_size_x:!1,autogenerate_stylesheet:!0,avoid_overlapped_widgets:!0,serialize_params:function(a,b){return{col:b.col,row:b.row,size_x:b.size_x,size_y:b.size_y}},collision:{},draggable:{items:".gs-w",distance:4},resize:{enabled:!1,axes:["x","y","both"],handle_append_to:"",handle_class:"gs-resize-handle",max_size:[1/0,1/0]}};d.generated_stylesheets=[];var f=d.prototype;f.init=function(){this.options.resize.enabled&&this.setup_resize(),this.generate_grid_and_stylesheet(),this.get_widgets_from_DOM(),this.set_dom_grid_height(),this.$wrapper.addClass("ready"),this.draggable(),this.options.resize.enabled&&this.resizable(),a(b).bind("resize.gridster",throttle(a.proxy(this.recalculate_faux_grid,this),200))},f.disable=function(){return this.$wrapper.find(".player-revert").removeClass("player-revert"),this.drag_api.disable(),this},f.enable=function(){return this.drag_api.enable(),this},f.disable_resize=function(){return this.$el.addClass("gs-resize-disabled"),this.resize_api.disable(),this},f.enable_resize=function(){return this.$el.removeClass("gs-resize-disabled"),this.resize_api.enable(),this},f.add_widget=function(b,c,d,e,f,g){var h;c||(c=1),d||(d=1),!e&!f?h=this.next_position(c,d):(h={col:e,row:f},this.empty_cells(e,f,c,d));var i=a(b).attr({"data-col":h.col,"data-row":h.row,"data-sizex":c,"data-sizey":d}).addClass("gs-w").appendTo(this.$el).hide();return this.$widgets=this.$widgets.add(i),this.register_widget(i),this.add_faux_rows(h.size_y),g&&this.set_widget_max_size(i,g),this.set_dom_grid_height(),i.fadeIn()},f.set_widget_max_size=function(a,b){if(a="number"==typeof a?this.$widgets.eq(a):a,!a.length)return this;var c=a.data("coords").grid;return c.max_size_x=b[0],c.max_size_y=b[1],this},f.add_resize_handle=function(b){var c=this.options.resize.handle_append_to;return a(this.resize_handle_tpl).appendTo(c?a(c,b):b),this},f.resize_widget=function(a,b,c,d,e){var f=a.coords().grid;d!==!1&&(d=!0),b||(b=f.size_x),c||(c=f.size_y),b>this.cols&&(b=this.cols);var g=f.size_y,h=f.col,i=h;if(d&&h+b-1>this.cols){var j=h+(b-1)-this.cols,k=h-j;i=Math.max(1,k)}c>g&&this.add_faux_rows(Math.max(c-g,0));var l={col:i,row:f.row,size_x:b,size_y:c};return this.mutate_widget_in_gridmap(a,f,l),this.set_dom_grid_height(),e&&e.call(this,l.size_x,l.size_y),a},f.mutate_widget_in_gridmap=function(b,c,d){c.size_x;var e=c.size_y,f=this.get_cells_occupied(c),g=this.get_cells_occupied(d),h=[];a.each(f.cols,function(b,c){-1===a.inArray(c,g.cols)&&h.push(c)});var i=[];a.each(g.cols,function(b,c){-1===a.inArray(c,f.cols)&&i.push(c)});var j=[];a.each(f.rows,function(b,c){-1===a.inArray(c,g.rows)&&j.push(c)});var k=[];if(a.each(g.rows,function(b,c){-1===a.inArray(c,f.rows)&&k.push(c)}),this.remove_from_gridmap(c),i.length){var l=[d.col,d.row,d.size_x,Math.min(e,d.size_y),b];this.empty_cells.apply(this,l)}if(k.length){var m=[d.col,d.row,d.size_x,d.size_y,b];this.empty_cells.apply(this,m)}if(c.col=d.col,c.row=d.row,c.size_x=d.size_x,c.size_y=d.size_y,this.add_to_gridmap(d,b),b.removeClass("player-revert"),b.data("coords").update({width:d.size_x*this.options.widget_base_dimensions[0]+2*(d.size_x-1)*this.options.widget_margins[0],height:d.size_y*this.options.widget_base_dimensions[1]+2*(d.size_y-1)*this.options.widget_margins[1]}),b.attr({"data-col":d.col,"data-row":d.row,"data-sizex":d.size_x,"data-sizey":d.size_y}),h.length){var n=[h[0],d.row,h.length,Math.min(e,d.size_y),b];this.remove_empty_cells.apply(this,n)}if(j.length){var o=[d.col,d.row,d.size_x,d.size_y,b];this.remove_empty_cells.apply(this,o)}return this.move_widget_up(b),this},f.empty_cells=function(b,c,d,e,f){var g=this.widgets_below({col:b,row:c-e,size_x:d,size_y:e});return g.not(f).each(a.proxy(function(b,d){var f=a(d).coords().grid;if(f.row<=c+e-1){var g=c+e-f.row;this.move_widget_down(a(d),g)}},this)),this.set_dom_grid_height(),this},f.remove_empty_cells=function(b,c,d,e,f){var g=this.widgets_below({col:b,row:c,size_x:d,size_y:e});return g.not(f).each(a.proxy(function(b,c){this.move_widget_up(a(c),e)},this)),this.set_dom_grid_height(),this},f.next_position=function(a,b){a||(a=1),b||(b=1);for(var c,d=this.gridmap,e=d.length,f=[],g=1;e>g;g++){c=d[g].length;for(var h=1;c>=h;h++){var i=this.can_move_to({size_x:a,size_y:b},g,h);i&&f.push({col:g,row:h,size_y:b,size_x:a})}}return f.length?this.sort_by_row_and_col_asc(f)[0]:!1},f.remove_widget=function(b,c,d){var e=b instanceof jQuery?b:a(b),f=e.coords().grid;a.isFunction(c)&&(d=c,c=!1),this.cells_occupied_by_placeholder={},this.$widgets=this.$widgets.not(e);var g=this.widgets_below(e);return this.remove_from_gridmap(f),e.fadeOut(a.proxy(function(){e.remove(),c||g.each(a.proxy(function(b,c){this.move_widget_up(a(c),f.size_y)},this)),this.set_dom_grid_height(),d&&d.call(this,b)},this)),this},f.remove_all_widgets=function(b){return this.$widgets.each(a.proxy(function(a,c){this.remove_widget(c,!0,b)},this)),this},f.serialize=function(b){b||(b=this.$widgets);var c=[];return b.each(a.proxy(function(b,d){c.push(this.options.serialize_params(a(d),a(d).coords().grid))},this)),c},f.serialize_changed=function(){return this.serialize(this.$changed)},f.register_widget=function(b){var c={col:parseInt(b.attr("data-col"),10),row:parseInt(b.attr("data-row"),10),size_x:parseInt(b.attr("data-sizex"),10),size_y:parseInt(b.attr("data-sizey"),10),max_size_x:parseInt(b.attr("data-max-sizex"),10)||!1,max_size_y:parseInt(b.attr("data-max-sizey"),10)||!1,el:b};return this.options.avoid_overlapped_widgets&&!this.can_move_to({size_x:c.size_x,size_y:c.size_y},c.col,c.row)&&(a.extend(c,this.next_position(c.size_x,c.size_y)),b.attr({"data-col":c.col,"data-row":c.row,"data-sizex":c.size_x,"data-sizey":c.size_y})),b.data("coords",b.coords()),b.data("coords").grid=c,this.add_to_gridmap(c,b),this.options.resize.enabled&&this.add_resize_handle(b),this},f.update_widget_position=function(a,b){return this.for_each_cell_occupied(a,function(a,c){return this.gridmap[a]?(this.gridmap[a][c]=b,void 0):this}),this},f.remove_from_gridmap=function(a){return this.update_widget_position(a,!1)},f.add_to_gridmap=function(b,c){if(this.update_widget_position(b,c||b.el),b.el){var d=this.widgets_below(b.el);d.each(a.proxy(function(b,c){this.move_widget_up(a(c))},this))}},f.draggable=function(){var b=this,c=a.extend(!0,{},this.options.draggable,{offset_left:this.options.widget_margins[0],container_width:this.container_width,ignore_dragging:["INPUT","TEXTAREA","SELECT","BUTTON","."+this.options.resize.handle_class],start:function(c,d){b.$widgets.filter(".player-revert").removeClass("player-revert"),b.$player=a(this),b.$helper=a(d.$helper),b.helper=!b.$helper.is(b.$player),b.on_start_drag.call(b,c,d),b.$el.trigger("gridster:dragstart")},stop:function(a,c){b.on_stop_drag.call(b,a,c),b.$el.trigger("gridster:dragstop")},drag:throttle(function(a,c){b.on_drag.call(b,a,c),b.$el.trigger("gridster:drag")},60)});return this.drag_api=this.$el.drag(c),this},f.resizable=function(){return this.resize_api=this.$el.drag({items:"."+this.options.resize.handle_class,offset_left:this.options.widget_margins[0],container_width:this.container_width,move_element:!1,start:a.proxy(this.on_start_resize,this),stop:a.proxy(function(b,c){delay(a.proxy(function(){this.on_stop_resize(b,c)},this),120)},this),drag:throttle(a.proxy(this.on_resize,this),60)}),this},f.setup_resize=function(){this.resize_handle_class=this.options.resize.handle_class;var b=this.options.resize.axes,c='<span class="'+this.resize_handle_class+" "+this.resize_handle_class+'-{type}" />';return this.resize_handle_tpl=a.map(b,function(a){return c.replace("{type}",a)}).join(""),this},f.on_start_drag=function(b,c){this.$helper.add(this.$player).add(this.$wrapper).addClass("dragging"),this.$player.addClass("player"),this.player_grid_data=this.$player.coords().grid,this.placeholder_grid_data=a.extend({},this.player_grid_data),this.$el.css("height",this.$el.height()+this.player_grid_data.size_y*this.min_widget_height);var d=this.faux_grid,e=this.$player.data("coords").coords;this.cells_occupied_by_player=this.get_cells_occupied(this.player_grid_data),this.cells_occupied_by_placeholder=this.get_cells_occupied(this.placeholder_grid_data),this.last_cols=[],this.last_rows=[],this.collision_api=this.$helper.collision(d,this.options.collision),this.$preview_holder=a("<"+this.$player.get(0).tagName+" />",{"class":"preview-holder","data-row":this.$player.attr("data-row"),"data-col":this.$player.attr("data-col"),css:{width:e.width,height:e.height}}).appendTo(this.$el),this.options.draggable.start&&this.options.draggable.start.call(this,b,c)},f.on_drag=function(a,b){if(null===this.$player)return!1;var c={left:b.position.left+this.baseX,top:b.position.top+this.baseY};this.colliders_data=this.collision_api.get_closest_colliders(c),this.on_overlapped_column_change(this.on_start_overlapping_column,this.on_stop_overlapping_column),this.on_overlapped_row_change(this.on_start_overlapping_row,this.on_stop_overlapping_row),this.helper&&this.$player&&this.$player.css({left:b.position.left,top:b.position.top}),this.options.draggable.drag&&this.options.draggable.drag.call(this,a,b)},f.on_stop_drag=function(a,b){this.$helper.add(this.$player).add(this.$wrapper).removeClass("dragging"),b.position.left=b.position.left+this.baseX,b.position.top=b.position.top+this.baseY,this.colliders_data=this.collision_api.get_closest_colliders(b.position),this.on_overlapped_column_change(this.on_start_overlapping_column,this.on_stop_overlapping_column),this.on_overlapped_row_change(this.on_start_overlapping_row,this.on_stop_overlapping_row),this.$player.addClass("player-revert").removeClass("player").attr({"data-col":this.placeholder_grid_data.col,"data-row":this.placeholder_grid_data.row}).css({left:"",top:""}),this.$changed=this.$changed.add(this.$player),this.cells_occupied_by_player=this.get_cells_occupied(this.placeholder_grid_data),this.set_cells_player_occupies(this.placeholder_grid_data.col,this.placeholder_grid_data.row),this.$player.coords().grid.row=this.placeholder_grid_data.row,this.$player.coords().grid.col=this.placeholder_grid_data.col,this.options.draggable.stop&&this.options.draggable.stop.call(this,a,b),this.$preview_holder.remove(),this.$player=null,this.$helper=null,this.placeholder_grid_data={},this.player_grid_data={},this.cells_occupied_by_placeholder={},this.cells_occupied_by_player={},this.set_dom_grid_height()},f.on_start_resize=function(b,c){this.$resized_widget=c.$player.closest(".gs-w"),this.resize_coords=this.$resized_widget.coords(),this.resize_wgd=this.resize_coords.grid,this.resize_initial_width=this.resize_coords.coords.width,this.resize_initial_height=this.resize_coords.coords.height,this.resize_initial_sizex=this.resize_coords.grid.size_x,this.resize_initial_sizey=this.resize_coords.grid.size_y,this.resize_last_sizex=this.resize_initial_sizex,this.resize_last_sizey=this.resize_initial_sizey,this.resize_max_size_x=Math.min(this.resize_wgd.max_size_x||this.options.resize.max_size[0],this.cols-this.resize_wgd.col+1),this.resize_max_size_y=this.resize_wgd.max_size_y||this.options.resize.max_size[1],this.resize_dir={right:c.$player.is("."+this.resize_handle_class+"-x"),bottom:c.$player.is("."+this.resize_handle_class+"-y")},this.$resized_widget.css({"min-width":this.options.widget_base_dimensions[0],"min-height":this.options.widget_base_dimensions[1]});var d=this.$resized_widget.get(0).tagName;this.$resize_preview_holder=a("<"+d+" />",{"class":"preview-holder resize-preview-holder","data-row":this.$resized_widget.attr("data-row"),"data-col":this.$resized_widget.attr("data-col"),css:{width:this.resize_initial_width,height:this.resize_initial_height}}).appendTo(this.$el),this.$resized_widget.addClass("resizing"),this.options.resize.start&&this.options.resize.start.call(this,b,c,this.$resized_widget)},f.on_stop_resize=function(b,c){this.$resized_widget.removeClass("resizing").css({width:"",height:""}),delay(a.proxy(function(){this.$resize_preview_holder.remove().css({"min-width":"","min-height":""})},this),300),this.options.resize.stop&&this.options.resize.stop.call(this,b,c,this.$resized_widget)},f.on_resize=function(a,b){var c=b.pointer.diff_left,d=b.pointer.diff_top,e=this.options.widget_base_dimensions[0],f=this.options.widget_base_dimensions[1],g=1/0,h=1/0,i=Math.ceil(c/(this.options.widget_base_dimensions[0]+2*this.options.widget_margins[0])-.2),j=Math.ceil(d/(this.options.widget_base_dimensions[1]+2*this.options.widget_margins[1])-.2),k=Math.max(1,this.resize_initial_sizex+i),l=Math.max(1,this.resize_initial_sizey+j);k=Math.min(k,this.resize_max_size_x),g=this.resize_max_size_x*e+2*(k-1)*this.options.widget_margins[0],l=Math.min(l,this.resize_max_size_y),h=this.resize_max_size_y*f+2*(l-1)*this.options.widget_margins[1],this.resize_dir.right?l=this.resize_initial_sizey:this.resize_dir.bottom&&(k=this.resize_initial_sizex);var m={};!this.resize_dir.bottom&&(m.width=Math.min(this.resize_initial_width+c,g)),!this.resize_dir.right&&(m.height=Math.min(this.resize_initial_height+d,h)),this.$resized_widget.css(m),(k!==this.resize_last_sizex||l!==this.resize_last_sizey)&&(this.resize_widget(this.$resized_widget,k,l,!1),this.$resize_preview_holder.css({width:"",height:""}).attr({"data-row":this.$resized_widget.attr("data-row"),"data-sizex":k,"data-sizey":l})),this.options.resize.resize&&this.options.resize.resize.call(this,a,b,this.$resized_widget),this.resize_last_sizex=k,this.resize_last_sizey=l},f.on_overlapped_column_change=function(b,c){if(!this.colliders_data.length)return this;var d,e=this.get_targeted_columns(this.colliders_data[0].el.data.col),f=this.last_cols.length,g=e.length;for(d=0;g>d;d++)-1===a.inArray(e[d],this.last_cols)&&(b||a.noop).call(this,e[d]);for(d=0;f>d;d++)-1===a.inArray(this.last_cols[d],e)&&(c||a.noop).call(this,this.last_cols[d]);return this.last_cols=e,this},f.on_overlapped_row_change=function(b,c){if(!this.colliders_data.length)return this;var d,e=this.get_targeted_rows(this.colliders_data[0].el.data.row),f=this.last_rows.length,g=e.length;for(d=0;g>d;d++)-1===a.inArray(e[d],this.last_rows)&&(b||a.noop).call(this,e[d]);for(d=0;f>d;d++)-1===a.inArray(this.last_rows[d],e)&&(c||a.noop).call(this,this.last_rows[d]);this.last_rows=e},f.set_player=function(a,b,c){var d=this;c||this.empty_cells_player_occupies();var e=c?{col:a}:d.colliders_data[0].el.data,f=e.col,g=b||e.row;this.player_grid_data={col:f,row:g,size_y:this.player_grid_data.size_y,size_x:this.player_grid_data.size_x},this.cells_occupied_by_player=this.get_cells_occupied(this.player_grid_data);var h=this.get_widgets_overlapped(this.player_grid_data),i=this.widgets_constraints(h);if(this.manage_movements(i.can_go_up,f,g),this.manage_movements(i.can_not_go_up,f,g),!h.length){var j=this.can_go_player_up(this.player_grid_data);j!==!1&&(g=j),this.set_placeholder(f,g)}return{col:f,row:g}},f.widgets_constraints=function(b){var c,d=a([]),e=[],f=[];return b.each(a.proxy(function(b,c){var g=a(c),h=g.coords().grid;this.can_go_widget_up(h)?(d=d.add(g),e.push(h)):f.push(h)},this)),c=b.not(d),{can_go_up:this.sort_by_row_asc(e),can_not_go_up:this.sort_by_row_desc(f)}},f.sort_by_row_asc=function(b){return b=b.sort(function(b,c){return b.row||(b=a(b).coords().grid,c=a(c).coords().grid),b.row>c.row?1:-1})},f.sort_by_row_and_col_asc=function(a){return a=a.sort(function(a,b){return a.row>b.row||a.row===b.row&&a.col>b.col?1:-1})},f.sort_by_col_asc=function(a){return a=a.sort(function(a,b){return a.col>b.col?1:-1})},f.sort_by_row_desc=function(a){return a=a.sort(function(a,b){return a.row+a.size_y<b.row+b.size_y?1:-1})},f.manage_movements=function(b,c,d){return a.each(b,a.proxy(function(a,b){var e=b,f=e.el,g=this.can_go_widget_up(e);if(g)this.move_widget_to(f,g),this.set_placeholder(c,g+e.size_y);else{var h=this.can_go_player_up(this.player_grid_data);if(!h){var i=d+this.player_grid_data.size_y-e.row;this.move_widget_down(f,i),this.set_placeholder(c,d)}}},this)),this},f.is_player=function(a,b){if(b&&!this.gridmap[a])return!1;var c=b?this.gridmap[a][b]:a;return c&&(c.is(this.$player)||c.is(this.$helper))},f.is_player_in=function(b,c){var d=this.cells_occupied_by_player||{};return a.inArray(b,d.cols)>=0&&a.inArray(c,d.rows)>=0},f.is_placeholder_in=function(b,c){var d=this.cells_occupied_by_placeholder||{};return this.is_placeholder_in_col(b)&&a.inArray(c,d.rows)>=0},f.is_placeholder_in_col=function(b){var c=this.cells_occupied_by_placeholder||[];return a.inArray(b,c.cols)>=0},f.is_empty=function(a,b){return"undefined"!=typeof this.gridmap[a]?"undefined"!=typeof this.gridmap[a][b]&&this.gridmap[a][b]===!1?!0:!1:!0},f.is_occupied=function(a,b){return this.gridmap[a]?this.gridmap[a][b]?!0:!1:!1},f.is_widget=function(a,b){var c=this.gridmap[a];return c?(c=c[b],c?c:!1):!1},f.is_widget_under_player=function(a,b){return this.is_widget(a,b)?this.is_player_in(a,b):!1},f.get_widgets_under_player=function(b){b||(b=this.cells_occupied_by_player||{cols:[],rows:[]});var c=a([]);return a.each(b.cols,a.proxy(function(d,e){a.each(b.rows,a.proxy(function(a,b){this.is_widget(e,b)&&(c=c.add(this.gridmap[e][b]))},this))},this)),c},f.set_placeholder=function(b,c){var d=a.extend({},this.placeholder_grid_data),e=this.widgets_below({col:d.col,row:d.row,size_y:d.size_y,size_x:d.size_x}),f=b+d.size_x-1;f>this.cols&&(b-=f-b);var g=this.placeholder_grid_data.row<c,h=this.placeholder_grid_data.col!==b;this.placeholder_grid_data.col=b,this.placeholder_grid_data.row=c,this.cells_occupied_by_placeholder=this.get_cells_occupied(this.placeholder_grid_data),this.$preview_holder.attr({"data-row":c,"data-col":b}),(g||h)&&e.each(a.proxy(function(c,e){this.move_widget_up(a(e),this.placeholder_grid_data.col-b+d.size_y)},this));var i=this.get_widgets_under_player(this.cells_occupied_by_placeholder);i.length&&i.each(a.proxy(function(b,e){var f=a(e);this.move_widget_down(f,c+d.size_y-f.data("coords").grid.row)},this))},f.can_go_player_up=function(a){var b=a.row+a.size_y-1,c=!0,d=[],e=1e4,f=this.get_widgets_under_player();return this.for_each_column_occupied(a,function(a){var g=this.gridmap[a],h=b+1;for(d[a]=[];--h>0&&(this.is_empty(a,h)||this.is_player(a,h)||this.is_widget(a,h)&&g[h].is(f));)d[a].push(h),e=e>h?h:e;return 0===d[a].length?(c=!1,!0):(d[a].sort(function(a,b){return a-b}),void 0)}),c?this.get_valid_rows(a,d,e):!1},f.can_go_widget_up=function(a){var b=a.row+a.size_y-1,c=!0,d=[],e=1e4;return this.for_each_column_occupied(a,function(f){var g=this.gridmap[f];d[f]=[];for(var h=b+1;--h>0&&(!this.is_widget(f,h)||this.is_player_in(f,h)||g[h].is(a.el));)this.is_player(f,h)||this.is_placeholder_in(f,h)||this.is_player_in(f,h)||d[f].push(h),e>h&&(e=h);return 0===d[f].length?(c=!1,!0):(d[f].sort(function(a,b){return a-b}),void 0)}),c?this.get_valid_rows(a,d,e):!1},f.get_valid_rows=function(b,c,d){for(var e=b.row,f=b.row+b.size_y-1,g=b.size_y,h=d-1,i=[];++h<=f;){var j=!0;if(a.each(c,function(b,c){a.isArray(c)&&-1===a.inArray(h,c)&&(j=!1)}),j===!0&&(i.push(h),i.length===g))break}var k=!1;return 1===g?i[0]!==e&&(k=i[0]||!1):i[0]!==e&&(k=this.get_consecutive_numbers_index(i,g)),k},f.get_consecutive_numbers_index=function(a,b){for(var c=a.length,d=[],e=!0,f=-1,g=0;c>g;g++){if(e||a[g]===f+1){if(d.push(g),d.length===b)break;e=!1}else d=[],e=!0;f=a[g]}return d.length>=b?a[d[0]]:!1},f.get_widgets_overlapped=function(){var b=a([]),c=[],d=this.cells_occupied_by_player.rows.slice(0);return d.reverse(),a.each(this.cells_occupied_by_player.cols,a.proxy(function(e,f){a.each(d,a.proxy(function(d,e){if(!this.gridmap[f])return!0;var g=this.gridmap[f][e];this.is_occupied(f,e)&&!this.is_player(g)&&-1===a.inArray(g,c)&&(b=b.add(g),c.push(g))},this))},this)),b},f.on_start_overlapping_column=function(a){this.set_player(a,!1)},f.on_start_overlapping_row=function(a){this.set_player(!1,a)},f.on_stop_overlapping_column=function(a){this.set_player(a,!1);var b=this;this.for_each_widget_below(a,this.cells_occupied_by_player.rows[0],function(){b.move_widget_up(this,b.player_grid_data.size_y)})},f.on_stop_overlapping_row=function(a){this.set_player(!1,a);for(var b=this,c=this.cells_occupied_by_player.cols,d=0,e=c.length;e>d;d++)this.for_each_widget_below(c[d],a,function(){b.move_widget_up(this,b.player_grid_data.size_y)})},f.move_widget_to=function(b,c){var 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c=a.isPlainObject(b)?b:b.coords().grid,d=this;this.gridmap;var e=c.row+c.size_y-1,f=a([]);return this.for_each_column_occupied(c,function(b){d.for_each_widget_below(b,e,function(){return d.is_player(this)||-1!==a.inArray(this,f)?void 0:(f=f.add(this),!0)})}),this.sort_by_row_asc(f)},f.set_cells_player_occupies=function(a,b){return this.remove_from_gridmap(this.placeholder_grid_data),this.placeholder_grid_data.col=a,this.placeholder_grid_data.row=b,this.add_to_gridmap(this.placeholder_grid_data,this.$player),this},f.empty_cells_player_occupies=function(){return this.remove_from_gridmap(this.placeholder_grid_data),this
-},f.can_go_up=function(a){var b=a.coords().grid,c=b.row,d=c-1;this.gridmap;var e=!0;return 1===c?!1:(this.for_each_column_occupied(b,function(a){return this.is_widget(a,d),this.is_occupied(a,d)||this.is_player(a,d)||this.is_placeholder_in(a,d)||this.is_player_in(a,d)?(e=!1,!0):void 0}),e)},f.can_move_to=function(a,b,c,d){this.gridmap;var e=a.el,f={size_y:a.size_y,size_x:a.size_x,col:b,row:c},g=!0,h=b+a.size_x-1;return h>this.cols?!1:d&&d<c+a.size_y-1?!1:(this.for_each_cell_occupied(f,function(b,c){var d=this.is_widget(b,c);!d||a.el&&!d.is(e)||(g=!1)}),g)},f.get_targeted_columns=function(a){for(var b=(a||this.player_grid_data.col)+(this.player_grid_data.size_x-1),c=[],d=a;b>=d;d++)c.push(d);return c},f.get_targeted_rows=function(a){for(var b=(a||this.player_grid_data.row)+(this.player_grid_data.size_y-1),c=[],d=a;b>=d;d++)c.push(d);return c},f.get_cells_occupied=function(a){var b,c={cols:[],rows:[]};for(arguments[1]instanceof jQuery&&(a=arguments[1].coords().grid),b=0;b<a.size_x;b++){var d=a.col+b;c.cols.push(d)}for(b=0;b<a.size_y;b++){var e=a.row+b;c.rows.push(e)}return c},f.for_each_cell_occupied=function(a,b){return this.for_each_column_occupied(a,function(c){this.for_each_row_occupied(a,function(a){b.call(this,c,a)})}),this},f.for_each_column_occupied=function(a,b){for(var c=0;c<a.size_x;c++){var d=a.col+c;b.call(this,d,a)}},f.for_each_row_occupied=function(a,b){for(var c=0;c<a.size_y;c++){var d=a.row+c;b.call(this,d,a)}},f._traversing_widgets=function(b,c,d,e,f){var g=this.gridmap;if(g[d]){var h,i,j=b+"/"+c;if(arguments[2]instanceof jQuery){var k=arguments[2].coords().grid;d=k.col,e=k.row,f=arguments[3]}var l=[],m=e,n={"for_each/above":function(){for(;m--&&!(m>0&&this.is_widget(d,m)&&-1===a.inArray(g[d][m],l)&&(h=f.call(g[d][m],d,m),l.push(g[d][m]),h)););},"for_each/below":function(){for(m=e+1,i=g[d].length;i>m&&(!this.is_widget(d,m)||-1!==a.inArray(g[d][m],l)||(h=f.call(g[d][m],d,m),l.push(g[d][m]),!h));m++);}};n[j]&&n[j].call(this)}},f.for_each_widget_above=function(a,b,c){return this._traversing_widgets("for_each","above",a,b,c),this},f.for_each_widget_below=function(a,b,c){return this._traversing_widgets("for_each","below",a,b,c),this},f.get_highest_occupied_cell=function(){for(var a,b=this.gridmap,c=[],d=[],e=b.length-1;e>=1;e--)for(a=b[e].length-1;a>=1;a--)if(this.is_widget(e,a)){c.push(a),d[a]=e;break}var f=Math.max.apply(Math,c);return this.highest_occupied_cell={col:d[f],row:f},this.highest_occupied_cell},f.get_widgets_from=function(b,c){this.gridmap;var d=a();return b&&(d=d.add(this.$widgets.filter(function(){var c=a(this).attr("data-col");return c===b||c>b}))),c&&(d=d.add(this.$widgets.filter(function(){var b=a(this).attr("data-row");return b===c||b>c}))),d},f.set_dom_grid_height=function(){var a=this.get_highest_occupied_cell().row;return this.$el.css("height",a*this.min_widget_height),this},f.generate_stylesheet=function(b){var c,e="",f=this.options.max_size_x||this.cols;b||(b={}),b.cols||(b.cols=this.cols),b.rows||(b.rows=this.rows),b.namespace||(b.namespace=this.options.namespace),b.widget_base_dimensions||(b.widget_base_dimensions=this.options.widget_base_dimensions),b.widget_margins||(b.widget_margins=this.options.widget_margins),b.min_widget_width=2*b.widget_margins[0]+b.widget_base_dimensions[0],b.min_widget_height=2*b.widget_margins[1]+b.widget_base_dimensions[1];var g=a.param(b);if(a.inArray(g,d.generated_stylesheets)>=0)return!1;for(d.generated_stylesheets.push(g),c=b.cols;c>=0;c--)e+=b.namespace+' [data-col="'+(c+1)+'"] { left:'+(c*b.widget_base_dimensions[0]+c*b.widget_margins[0]+(c+1)*b.widget_margins[0])+"px; 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\ No newline at end of file
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r=this,o=arguments,a=function(){s=null,e||t.apply(r,o)};e&&!s&&t.apply(r,o),clearTimeout(s),s=setTimeout(a,i)}},t.throttle=function(t,i){var e,s,r,o,a,h,n=debounce(function(){a=o=!1},i);return function(){e=this,s=arguments;var _=function(){r=null,a&&t.apply(e,s),n()};return r||(r=setTimeout(_,i)),o?a=!0:h=t.apply(e,s),n(),o=!0,h}}}(window),function(t,i,e){function s(i,s){this.options=t.extend({},r,s),this.$body=t(e.body),this.$container=t(i),this.$dragitems=t(this.options.items,this.$container),this.is_dragging=!1,this.player_min_left=0+this.options.offset_left,this.init()}var r={items:"li",distance:1,limit:!0,offset_left:0,autoscroll:!0,ignore_dragging:["INPUT","TEXTAREA","SELECT","BUTTON"],handle:null,container_width:0,move_element:!0,helper:!1},o=t(i),a={x:"left",y:"top"},h=!!("ontouchstart"in i),n={start:h?"touchstart.gridster-draggable":"mousedown.gridster-draggable",move:h?"touchmove.gridster-draggable":"mousemove.gridster-draggable",end:h?"touchend.gridster-draggable":"mouseup.gridster-draggable"},_=function(t){return t.charAt(0).toUpperCase()+t.slice(1)},d=s.prototype;d.init=function(){this.calculate_dimensions(),this.$container.css("position","relative"),this.disabled=!1,this.events(),t(i).bind("resize.gridster-draggable",throttle(t.proxy(this.calculate_dimensions,this),200))},d.events=function(){this.$container.on("selectstart.gridster-draggable",t.proxy(this.on_select_start,this)),this.$container.on(n.start,this.options.items,t.proxy(this.drag_handler,this)),this.$body.on(n.end,t.proxy(function(t){this.is_dragging=!1,this.disabled||(this.$body.off(n.move),this.drag_start&&this.on_dragstop(t))},this))},d.get_actual_pos=function(t){var i=t.position();return i},d.get_mouse_pos=function(t){if(h){var i=t.originalEvent;t=i.touches.length?i.touches[0]:i.changedTouches[0]}return{left:t.clientX,top:t.clientY}},d.get_offset=function(t){t.preventDefault();var i=this.get_mouse_pos(t),e=Math.round(i.left-this.mouse_init_pos.left),s=Math.round(i.top-this.mouse_init_pos.top),r=Math.round(this.el_init_offset.left+e-this.baseX+this.scroll_offset_x),o=Math.round(this.el_init_offset.top+s-this.baseY+this.scroll_offset_y);return this.options.limit&&(r>this.player_max_left?r=this.player_max_left:this.player_min_left>r&&(r=this.player_min_left)),{position:{left:r,top:o},pointer:{left:i.left,top:i.top,diff_left:e+this.scroll_offset_x,diff_top:s+this.scroll_offset_y}}},d.get_drag_data=function(t){var i=this.get_offset(t);return i.$player=this.$player,i.$helper=this.helper?this.$helper:this.$player,i},d.set_limits=function(t){return t||(t=this.$container.width()),this.player_max_left=t-this.player_width+-this.options.offset_left,this.options.container_width=t,this},d.scroll_in=function(i,s){var r,h=a[i],n=50,d=30,l="x"===i,c=l?this.window_width:this.window_height,p=l?t(e).width():t(e).height(),g=l?this.$player.width():this.$player.height(),u=o["scroll"+_(h)](),f=u,w=f+c,m=w-n,y=f+n,v=f+s.pointer[h],z=p-c+g;return v>=m&&(r=u+d,z>r&&(o["scroll"+_(h)](r),this["scroll_offset_"+i]+=d)),y>=v&&(r=u-d,r>0&&(o["scroll"+_(h)](r),this["scroll_offset_"+i]-=d)),this},d.manage_scroll=function(t){this.scroll_in("x",t),this.scroll_in("y",t)},d.calculate_dimensions=function(){this.window_height=o.height(),this.window_width=o.width()},d.drag_handler=function(i){if(i.target.nodeName,!this.disabled&&(1===i.which||h)&&!this.ignore_drag(i)){var e=this,s=!0;return this.$player=t(i.currentTarget),this.el_init_pos=this.get_actual_pos(this.$player),this.mouse_init_pos=this.get_mouse_pos(i),this.offsetY=this.mouse_init_pos.top-this.el_init_pos.top,this.$body.on(n.move,function(t){var i=e.get_mouse_pos(t),r=Math.abs(i.left-e.mouse_init_pos.left),o=Math.abs(i.top-e.mouse_init_pos.top);return r>e.options.distance||o>e.options.distance?s?(s=!1,e.on_dragstart.call(e,t),!1):(e.is_dragging===!0&&e.on_dragmove.call(e,t),!1):!1}),h?undefined:!1}},d.on_dragstart=function(t){if(t.preventDefault(),this.is_dragging)return this;this.drag_start=this.is_dragging=!0;var i=this.$container.offset();return this.baseX=Math.round(i.left),this.baseY=Math.round(i.top),this.initial_container_width=this.options.container_width||this.$container.width(),"clone"===this.options.helper?(this.$helper=this.$player.clone().appendTo(this.$container).addClass("helper"),this.helper=!0):this.helper=!1,this.scroll_offset_y=0,this.scroll_offset_x=0,this.el_init_offset=this.$player.offset(),this.player_width=this.$player.width(),this.player_height=this.$player.height(),this.set_limits(this.options.container_width),this.options.start&&this.options.start.call(this.$player,t,this.get_drag_data(t)),!1},d.on_dragmove=function(t){var i=this.get_drag_data(t);this.options.autoscroll&&this.manage_scroll(i),this.options.move_element&&(this.helper?this.$helper:this.$player).css({position:"absolute",left:i.position.left,top:i.position.top});var e=this.last_position||i.position;return i.prev_position=e,this.options.drag&&this.options.drag.call(this.$player,t,i),this.last_position=i.position,!1},d.on_dragstop=function(t){var i=this.get_drag_data(t);return this.drag_start=!1,this.options.stop&&this.options.stop.call(this.$player,t,i),this.helper&&this.$helper.remove(),!1},d.on_select_start=function(t){return this.disabled||this.ignore_drag(t)?undefined:!1},d.enable=function(){this.disabled=!1},d.disable=function(){this.disabled=!0},d.destroy=function(){this.disable(),this.$container.off(".gridster-draggable"),this.$body.off(".gridster-draggable"),t(i).off(".gridster-draggable"),t.removeData(this.$container,"drag")},d.ignore_drag=function(i){return this.options.handle?!t(i.target).is(this.options.handle):t(i.target).is(this.options.ignore_dragging.join(", "))},t.fn.drag=function(t){return new s(this,t)}}(jQuery,window,document),function(t,i,e){function s(i,e){this.options=t.extend(!0,r,e),this.$el=t(i),this.$wrapper=this.$el.parent(),this.$widgets=this.$el.children(this.options.widget_selector).addClass("gs-w"),this.widgets=[],this.$changed=t([]),this.wrapper_width=this.$wrapper.width(),this.min_widget_width=2*this.options.widget_margins[0]+this.options.widget_base_dimensions[0],this.min_widget_height=2*this.options.widget_margins[1]+this.options.widget_base_dimensions[1],this.$style_tags=t([]),this.init()}var r={namespace:"",widget_selector:"li",widget_margins:[10,10],widget_base_dimensions:[400,225],extra_rows:0,extra_cols:0,min_cols:1,max_cols:1/0,min_rows:15,max_size_x:!1,autogrow_cols:!1,autogenerate_stylesheet:!0,avoid_overlapped_widgets:!0,serialize_params:function(t,i){return{col:i.col,row:i.row,size_x:i.size_x,size_y:i.size_y}},collision:{},draggable:{items:".gs-w",distance:4},resize:{enabled:!1,axes:["x","y","both"],handle_append_to:"",handle_class:"gs-resize-handle",max_size:[1/0,1/0]}};s.generated_stylesheets=[];var o=s.prototype;o.init=function(){this.options.resize.enabled&&this.setup_resize(),this.generate_grid_and_stylesheet(),this.get_widgets_from_DOM(),this.set_dom_grid_height(),this.set_dom_grid_width(),this.$wrapper.addClass("ready"),this.draggable(),this.options.resize.enabled&&this.resizable(),t(i).bind("resize.gridster",throttle(t.proxy(this.recalculate_faux_grid,this),200))},o.disable=function(){return this.$wrapper.find(".player-revert").removeClass("player-revert"),this.drag_api.disable(),this},o.enable=function(){return this.drag_api.enable(),this},o.disable_resize=function(){return this.$el.addClass("gs-resize-disabled"),this.resize_api.disable(),this},o.enable_resize=function(){return this.$el.removeClass("gs-resize-disabled"),this.resize_api.enable(),this},o.add_widget=function(i,e,s,r,o,a){var h;e||(e=1),s||(s=1),!r&!o?h=this.next_position(e,s):(h={col:r,row:o},this.empty_cells(r,o,e,s));var n=t(i).attr({"data-col":h.col,"data-row":h.row,"data-sizex":e,"data-sizey":s}).addClass("gs-w").appendTo(this.$el).hide();return this.$widgets=this.$widgets.add(n),this.register_widget(n),this.add_faux_rows(h.size_y),a&&this.set_widget_max_size(n,a),this.set_dom_grid_height(),n.fadeIn()},o.set_widget_max_size=function(t,i){if(t="number"==typeof t?this.$widgets.eq(t):t,!t.length)return this;var e=t.data("coords").grid;return e.max_size_x=i[0],e.max_size_y=i[1],this},o.add_resize_handle=function(i){var e=this.options.resize.handle_append_to;return t(this.resize_handle_tpl).appendTo(e?t(e,i):i),this},o.resize_widget=function(t,i,e,s){var r=t.coords().grid,o=r.col,a=this.options.max_cols,h=r.size_y,n=r.col,_=n;i||(i=r.size_x),e||(e=r.size_y),1/0!==a&&(i=Math.min(i,a-o+1)),e>h&&this.add_faux_rows(Math.max(e-h,0));var d=o+i-1;d>this.cols&&this.add_faux_cols(d-this.cols);var l={col:_,row:r.row,size_x:i,size_y:e};return this.mutate_widget_in_gridmap(t,r,l),this.set_dom_grid_height(),this.set_dom_grid_width(),s&&s.call(this,l.size_x,l.size_y),t},o.mutate_widget_in_gridmap=function(i,e,s){e.size_x;var r=e.size_y,o=this.get_cells_occupied(e),a=this.get_cells_occupied(s),h=[];t.each(o.cols,function(i,e){-1===t.inArray(e,a.cols)&&h.push(e)});var n=[];t.each(a.cols,function(i,e){-1===t.inArray(e,o.cols)&&n.push(e)});var _=[];t.each(o.rows,function(i,e){-1===t.inArray(e,a.rows)&&_.push(e)});var d=[];if(t.each(a.rows,function(i,e){-1===t.inArray(e,o.rows)&&d.push(e)}),this.remove_from_gridmap(e),n.length){var l=[s.col,s.row,s.size_x,Math.min(r,s.size_y),i];this.empty_cells.apply(this,l)}if(d.length){var c=[s.col,s.row,s.size_x,s.size_y,i];this.empty_cells.apply(this,c)}if(e.col=s.col,e.row=s.row,e.size_x=s.size_x,e.size_y=s.size_y,this.add_to_gridmap(s,i),i.removeClass("player-revert"),i.data("coords").update({width:s.size_x*this.options.widget_base_dimensions[0]+2*(s.size_x-1)*this.options.widget_margins[0],height:s.size_y*this.options.widget_base_dimensions[1]+2*(s.size_y-1)*this.options.widget_margins[1]}),i.attr({"data-col":s.col,"data-row":s.row,"data-sizex":s.size_x,"data-sizey":s.size_y}),h.length){var p=[h[0],s.row,h.length,Math.min(r,s.size_y),i];this.remove_empty_cells.apply(this,p)}if(_.length){var g=[s.col,s.row,s.size_x,s.size_y,i];this.remove_empty_cells.apply(this,g)}return this.move_widget_up(i),this},o.empty_cells=function(i,e,s,r,o){var a=this.widgets_below({col:i,row:e-r,size_x:s,size_y:r});return a.not(o).each(t.proxy(function(i,s){var o=t(s).coords().grid;if(e+r-1>=o.row){var a=e+r-o.row;this.move_widget_down(t(s),a)}},this)),this.set_dom_grid_height(),this},o.remove_empty_cells=function(i,e,s,r,o){var a=this.widgets_below({col:i,row:e,size_x:s,size_y:r});return a.not(o).each(t.proxy(function(i,e){this.move_widget_up(t(e),r)},this)),this.set_dom_grid_height(),this},o.next_position=function(t,i){t||(t=1),i||(i=1);for(var e,s=this.gridmap,r=s.length,o=[],a=1;r>a;a++){e=s[a].length;for(var h=1;e>=h;h++){var n=this.can_move_to({size_x:t,size_y:i},a,h);n&&o.push({col:a,row:h,size_y:i,size_x:t})}}return o.length?this.sort_by_row_and_col_asc(o)[0]:!1},o.remove_widget=function(i,e,s){var r=i instanceof t?i:t(i),o=r.coords().grid;t.isFunction(e)&&(s=e,e=!1),this.cells_occupied_by_placeholder={},this.$widgets=this.$widgets.not(r);var a=this.widgets_below(r);return this.remove_from_gridmap(o),r.fadeOut(t.proxy(function(){r.remove(),e||a.each(t.proxy(function(i,e){this.move_widget_up(t(e),o.size_y)},this)),this.set_dom_grid_height(),s&&s.call(this,i)},this)),this},o.remove_all_widgets=function(i){return this.$widgets.each(t.proxy(function(t,e){this.remove_widget(e,!0,i)},this)),this},o.serialize=function(i){i||(i=this.$widgets);var e=[];return i.each(t.proxy(function(i,s){e.push(this.options.serialize_params(t(s),t(s).coords().grid))},this)),e},o.serialize_changed=function(){return this.serialize(this.$changed)},o.register_widget=function(i){var e={col:parseInt(i.attr("data-col"),10),row:parseInt(i.attr("data-row"),10),size_x:parseInt(i.attr("data-sizex"),10),size_y:parseInt(i.attr("data-sizey"),10),max_size_x:parseInt(i.attr("data-max-sizex"),10)||!1,max_size_y:parseInt(i.attr("data-max-sizey"),10)||!1,el:i};return this.options.avoid_overlapped_widgets&&!this.can_move_to({size_x:e.size_x,size_y:e.size_y},e.col,e.row)&&(t.extend(e,this.next_position(e.size_x,e.size_y)),i.attr({"data-col":e.col,"data-row":e.row,"data-sizex":e.size_x,"data-sizey":e.size_y})),i.data("coords",i.coords()),i.data("coords").grid=e,this.add_to_gridmap(e,i),this.options.resize.enabled&&this.add_resize_handle(i),this},o.update_widget_position=function(t,i){return this.for_each_cell_occupied(t,function(t,e){return this.gridmap[t]?(this.gridmap[t][e]=i,undefined):this}),this},o.remove_from_gridmap=function(t){return this.update_widget_position(t,!1)},o.add_to_gridmap=function(i,e){if(this.update_widget_position(i,e||i.el),i.el){var s=this.widgets_below(i.el);s.each(t.proxy(function(i,e){this.move_widget_up(t(e))},this))}},o.draggable=function(){var i=this,e=t.extend(!0,{},this.options.draggable,{offset_left:this.options.widget_margins[0],offset_top:this.options.widget_margins[1],container_width:this.container_width,limit:!0,ignore_dragging:["INPUT","TEXTAREA","SELECT","BUTTON","."+this.options.resize.handle_class],start:function(e,s){i.$widgets.filter(".player-revert").removeClass("player-revert"),i.$player=t(this),i.$helper=t(s.$helper),i.helper=!i.$helper.is(i.$player),i.on_start_drag.call(i,e,s),i.$el.trigger("gridster:dragstart")},stop:function(t,e){i.on_stop_drag.call(i,t,e),i.$el.trigger("gridster:dragstop")},drag:throttle(function(t,e){i.on_drag.call(i,t,e),i.$el.trigger("gridster:drag")},60)});return this.drag_api=this.$el.drag(e),this},o.resizable=function(){return this.resize_api=this.$el.drag({items:"."+this.options.resize.handle_class,offset_left:this.options.widget_margins[0],container_width:this.container_width,move_element:!1,resize:!0,limit:this.options.autogrow_cols?!1:!0,start:t.proxy(this.on_start_resize,this),stop:t.proxy(function(i,e){delay(t.proxy(function(){this.on_stop_resize(i,e)},this),120)},this),drag:throttle(t.proxy(this.on_resize,this),60)}),this},o.setup_resize=function(){this.resize_handle_class=this.options.resize.handle_class;var i=this.options.resize.axes,e='<span class="'+this.resize_handle_class+" "+this.resize_handle_class+'-{type}" />';return this.resize_handle_tpl=t.map(i,function(t){return e.replace("{type}",t)}).join(""),this},o.on_start_drag=function(i,e){this.$helper.add(this.$player).add(this.$wrapper).addClass("dragging"),this.highest_col=this.get_highest_occupied_cell().col,this.$player.addClass("player"),this.player_grid_data=this.$player.coords().grid,this.placeholder_grid_data=t.extend({},this.player_grid_data),this.set_dom_grid_height(this.$el.height()+this.player_grid_data.size_y*this.min_widget_height),this.set_dom_grid_width(this.highest_col+1);var s=this.cols-this.highest_col;this.player_grid_data.size_x>s&&this.add_faux_cols(this.player_grid_data.size_x-s);var r=this.faux_grid,o=this.$player.data("coords").coords;this.cells_occupied_by_player=this.get_cells_occupied(this.player_grid_data),this.cells_occupied_by_placeholder=this.get_cells_occupied(this.placeholder_grid_data),this.last_cols=[],this.last_rows=[],this.collision_api=this.$helper.collision(r,this.options.collision),this.$preview_holder=t("<"+this.$player.get(0).tagName+" />",{"class":"preview-holder","data-row":this.$player.attr("data-row"),"data-col":this.$player.attr("data-col"),css:{width:o.width,height:o.height}}).appendTo(this.$el),this.options.draggable.start&&this.options.draggable.start.call(this,i,e)},o.on_drag=function(t,i){if(null===this.$player)return!1;var e={left:i.position.left+this.baseX,top:i.position.top+this.baseY};if(this.colliders_data=this.collision_api.get_closest_colliders(e),this.on_overlapped_column_change(this.on_start_overlapping_column,this.on_stop_overlapping_column),this.on_overlapped_row_change(this.on_start_overlapping_row,this.on_stop_overlapping_row),this.options.autogrow_cols){var s=this.placeholder_grid_data.col+this.placeholder_grid_data.size_x-1;s===this.highest_col&&(this.cols>s&&this.set_dom_grid_width(s+1),this.highest_col=s+1,this.drag_api.set_limits(this.container_width))}this.helper&&this.$player&&this.$player.css({left:i.position.left,top:i.position.top}),this.options.draggable.drag&&this.options.draggable.drag.call(this,t,i)},o.on_stop_drag=function(t,i){this.$helper.add(this.$player).add(this.$wrapper).removeClass("dragging"),i.position.left=i.position.left+this.baseX,i.position.top=i.position.top+this.baseY,this.colliders_data=this.collision_api.get_closest_colliders(i.position),this.on_overlapped_column_change(this.on_start_overlapping_column,this.on_stop_overlapping_column),this.on_overlapped_row_change(this.on_start_overlapping_row,this.on_stop_overlapping_row),this.$player.addClass("player-revert").removeClass("player").attr({"data-col":this.placeholder_grid_data.col,"data-row":this.placeholder_grid_data.row}).css({left:"",top:""}),this.$changed=this.$changed.add(this.$player),this.cells_occupied_by_player=this.get_cells_occupied(this.placeholder_grid_data),this.set_cells_player_occupies(this.placeholder_grid_data.col,this.placeholder_grid_data.row),this.$player.coords().grid.row=this.placeholder_grid_data.row,this.$player.coords().grid.col=this.placeholder_grid_data.col,this.options.draggable.stop&&this.options.draggable.stop.call(this,t,i),this.$preview_holder.remove(),this.$player=null,this.$helper=null,this.placeholder_grid_data={},this.player_grid_data={},this.cells_occupied_by_placeholder={},this.cells_occupied_by_player={},this.set_dom_grid_height(),this.set_dom_grid_width(),this.options.autogrow_cols&&this.drag_api.set_limits(this.container_width)},o.on_start_resize=function(i,e){this.$resized_widget=e.$player.closest(".gs-w"),this.resize_coords=this.$resized_widget.coords(),this.resize_wgd=this.resize_coords.grid,this.resize_initial_width=this.resize_coords.coords.width,this.resize_initial_height=this.resize_coords.coords.height,this.resize_initial_sizex=this.resize_coords.grid.size_x,this.resize_initial_sizey=this.resize_coords.grid.size_y,this.resize_initial_col=this.resize_coords.grid.col,this.resize_last_sizex=this.resize_initial_sizex,this.resize_last_sizey=this.resize_initial_sizey,this.resize_max_size_x=Math.min(this.resize_wgd.max_size_x||this.options.resize.max_size[0],this.options.max_cols-this.resize_initial_col+1),this.resize_max_size_y=this.resize_wgd.max_size_y||this.options.resize.max_size[1],this.resize_initial_last_col=this.get_highest_occupied_cell().col,this.resize_dir={right:e.$player.is("."+this.resize_handle_class+"-x"),bottom:e.$player.is("."+this.resize_handle_class+"-y")},this.$resized_widget.css({"min-width":this.options.widget_base_dimensions[0],"min-height":this.options.widget_base_dimensions[1]});var s=this.$resized_widget.get(0).tagName;this.$resize_preview_holder=t("<"+s+" />",{"class":"preview-holder resize-preview-holder","data-row":this.$resized_widget.attr("data-row"),"data-col":this.$resized_widget.attr("data-col"),css:{width:this.resize_initial_width,height:this.resize_initial_height}}).appendTo(this.$el),this.$resized_widget.addClass("resizing"),this.options.resize.start&&this.options.resize.start.call(this,i,e,this.$resized_widget)},o.on_stop_resize=function(i,e){this.$resized_widget.removeClass("resizing").css({width:"",height:""}),delay(t.proxy(function(){this.$resize_preview_holder.remove().css({"min-width":"","min-height":""})},this),300),this.set_dom_grid_width(),this.options.autogrow_cols&&this.drag_api.set_limits(this.container_width),this.options.resize.stop&&this.options.resize.stop.call(this,i,e,this.$resized_widget)},o.on_resize=function(t,i){var e=i.pointer.diff_left,s=i.pointer.diff_top,r=this.options.widget_base_dimensions[0],o=this.options.widget_base_dimensions[1],a=1/0,h=1/0,n=Math.ceil(e/(this.options.widget_base_dimensions[0]+2*this.options.widget_margins[0])-.2),_=Math.ceil(s/(this.options.widget_base_dimensions[1]+2*this.options.widget_margins[1])-.2),d=Math.max(1,this.resize_initial_sizex+n),l=Math.max(1,this.resize_initial_sizey+_);if(d=Math.min(d,this.resize_max_size_x),a=this.resize_max_size_x*r+2*(d-1)*this.options.widget_margins[0],l=Math.min(l,this.resize_max_size_y),h=this.resize_max_size_y*o+2*(l-1)*this.options.widget_margins[1],this.resize_dir.right?l=this.resize_initial_sizey:this.resize_dir.bottom&&(d=this.resize_initial_sizex),this.options.autogrow_cols){var c=this.resize_initial_col+d-1;this.options.autogrow_cols&&c>=this.resize_initial_last_col&&(this.set_dom_grid_width(c+1),c>this.cols&&this.add_faux_cols(c-this.cols))}var p={};!this.resize_dir.bottom&&(p.width=Math.min(this.resize_initial_width+e,a)),!this.resize_dir.right&&(p.height=Math.min(this.resize_initial_height+s,h)),this.$resized_widget.css(p),(d!==this.resize_last_sizex||l!==this.resize_last_sizey)&&(this.resize_widget(this.$resized_widget,d,l),this.$resize_preview_holder.css({width:"",height:""}).attr({"data-row":this.$resized_widget.attr("data-row"),"data-sizex":d,"data-sizey":l})),this.options.resize.resize&&this.options.resize.resize.call(this,t,i,this.$resized_widget),this.resize_last_sizex=d,this.resize_last_sizey=l},o.on_overlapped_column_change=function(i,e){if(!this.colliders_data.length)return this;var s,r=this.get_targeted_columns(this.colliders_data[0].el.data.col),o=this.last_cols.length,a=r.length;for(s=0;a>s;s++)-1===t.inArray(r[s],this.last_cols)&&(i||t.noop).call(this,r[s]);for(s=0;o>s;s++)-1===t.inArray(this.last_cols[s],r)&&(e||t.noop).call(this,this.last_cols[s]);return this.last_cols=r,this},o.on_overlapped_row_change=function(i,e){if(!this.colliders_data.length)return this;var s,r=this.get_targeted_rows(this.colliders_data[0].el.data.row),o=this.last_rows.length,a=r.length;for(s=0;a>s;s++)-1===t.inArray(r[s],this.last_rows)&&(i||t.noop).call(this,r[s]);for(s=0;o>s;s++)-1===t.inArray(this.last_rows[s],r)&&(e||t.noop).call(this,this.last_rows[s]);this.last_rows=r},o.set_player=function(t,i,e){var s=this;e||this.empty_cells_player_occupies();var r=e?{col:t}:s.colliders_data[0].el.data,o=r.col,a=i||r.row;this.player_grid_data={col:o,row:a,size_y:this.player_grid_data.size_y,size_x:this.player_grid_data.size_x},this.cells_occupied_by_player=this.get_cells_occupied(this.player_grid_data);var h=this.get_widgets_overlapped(this.player_grid_data),n=this.widgets_constraints(h);if(this.manage_movements(n.can_go_up,o,a),this.manage_movements(n.can_not_go_up,o,a),!h.length){var _=this.can_go_player_up(this.player_grid_data);_!==!1&&(a=_),this.set_placeholder(o,a)}return{col:o,row:a}},o.widgets_constraints=function(i){var e,s=t([]),r=[],o=[];return i.each(t.proxy(function(i,e){var a=t(e),h=a.coords().grid;this.can_go_widget_up(h)?(s=s.add(a),r.push(h)):o.push(h)},this)),e=i.not(s),{can_go_up:this.sort_by_row_asc(r),can_not_go_up:this.sort_by_row_desc(o)}},o.sort_by_row_asc=function(i){return i=i.sort(function(i,e){return i.row||(i=t(i).coords().grid,e=t(e).coords().grid),i.row>e.row?1:-1})},o.sort_by_row_and_col_asc=function(t){return t=t.sort(function(t,i){return t.row>i.row||t.row===i.row&&t.col>i.col?1:-1})},o.sort_by_col_asc=function(t){return t=t.sort(function(t,i){return t.col>i.col?1:-1})},o.sort_by_row_desc=function(t){return t=t.sort(function(t,i){return t.row+t.size_y<i.row+i.size_y?1:-1})},o.manage_movements=function(i,e,s){return t.each(i,t.proxy(function(t,i){var r=i,o=r.el,a=this.can_go_widget_up(r);if(a)this.move_widget_to(o,a),this.set_placeholder(e,a+r.size_y);else{var h=this.can_go_player_up(this.player_grid_data);if(!h){var n=s+this.player_grid_data.size_y-r.row;this.move_widget_down(o,n),this.set_placeholder(e,s)}}},this)),this},o.is_player=function(t,i){if(i&&!this.gridmap[t])return!1;var e=i?this.gridmap[t][i]:t;return e&&(e.is(this.$player)||e.is(this.$helper))},o.is_player_in=function(i,e){var s=this.cells_occupied_by_player||{};return t.inArray(i,s.cols)>=0&&t.inArray(e,s.rows)>=0},o.is_placeholder_in=function(i,e){var s=this.cells_occupied_by_placeholder||{};return this.is_placeholder_in_col(i)&&t.inArray(e,s.rows)>=0},o.is_placeholder_in_col=function(i){var e=this.cells_occupied_by_placeholder||[];return t.inArray(i,e.cols)>=0},o.is_empty=function(t,i){return this.gridmap[t]!==undefined?this.gridmap[t][i]!==undefined&&this.gridmap[t][i]===!1?!0:!1:!0},o.is_occupied=function(t,i){return this.gridmap[t]?this.gridmap[t][i]?!0:!1:!1},o.is_widget=function(t,i){var e=this.gridmap[t];return e?(e=e[i],e?e:!1):!1},o.is_widget_under_player=function(t,i){return this.is_widget(t,i)?this.is_player_in(t,i):!1},o.get_widgets_under_player=function(i){i||(i=this.cells_occupied_by_player||{cols:[],rows:[]});var e=t([]);return t.each(i.cols,t.proxy(function(s,r){t.each(i.rows,t.proxy(function(t,i){this.is_widget(r,i)&&(e=e.add(this.gridmap[r][i]))},this))},this)),e},o.set_placeholder=function(i,e){var s=t.extend({},this.placeholder_grid_data),r=this.widgets_below({col:s.col,row:s.row,size_y:s.size_y,size_x:s.size_x}),o=i+s.size_x-1;o>this.cols&&(i-=o-i);var a=e>this.placeholder_grid_data.row,h=this.placeholder_grid_data.col!==i;this.placeholder_grid_data.col=i,this.placeholder_grid_data.row=e,this.cells_occupied_by_placeholder=this.get_cells_occupied(this.placeholder_grid_data),this.$preview_holder.attr({"data-row":e,"data-col":i}),(a||h)&&r.each(t.proxy(function(e,r){this.move_widget_up(t(r),this.placeholder_grid_data.col-i+s.size_y)},this));var n=this.get_widgets_under_player(this.cells_occupied_by_placeholder);n.length&&n.each(t.proxy(function(i,r){var o=t(r);this.move_widget_down(o,e+s.size_y-o.data("coords").grid.row)},this))},o.can_go_player_up=function(t){var i=t.row+t.size_y-1,e=!0,s=[],r=1e4,o=this.get_widgets_under_player();return this.for_each_column_occupied(t,function(t){var a=this.gridmap[t],h=i+1;for(s[t]=[];--h>0&&(this.is_empty(t,h)||this.is_player(t,h)||this.is_widget(t,h)&&a[h].is(o));)s[t].push(h),r=r>h?h:r;return 0===s[t].length?(e=!1,!0):(s[t].sort(function(t,i){return t-i}),undefined)}),e?this.get_valid_rows(t,s,r):!1},o.can_go_widget_up=function(t){var i=t.row+t.size_y-1,e=!0,s=[],r=1e4;return this.for_each_column_occupied(t,function(o){var a=this.gridmap[o];s[o]=[];for(var h=i+1;--h>0&&(!this.is_widget(o,h)||this.is_player_in(o,h)||a[h].is(t.el));)this.is_player(o,h)||this.is_placeholder_in(o,h)||this.is_player_in(o,h)||s[o].push(h),r>h&&(r=h);return 0===s[o].length?(e=!1,!0):(s[o].sort(function(t,i){return t-i}),undefined)}),e?this.get_valid_rows(t,s,r):!1},o.get_valid_rows=function(i,e,s){for(var r=i.row,o=i.row+i.size_y-1,a=i.size_y,h=s-1,n=[];o>=++h;){var _=!0;if(t.each(e,function(i,e){t.isArray(e)&&-1===t.inArray(h,e)&&(_=!1)}),_===!0&&(n.push(h),n.length===a))break}var d=!1;return 1===a?n[0]!==r&&(d=n[0]||!1):n[0]!==r&&(d=this.get_consecutive_numbers_index(n,a)),d},o.get_consecutive_numbers_index=function(t,i){for(var e=t.length,s=[],r=!0,o=-1,a=0;e>a;a++){if(r||t[a]===o+1){if(s.push(a),s.length===i)break;r=!1}else s=[],r=!0;o=t[a]}return s.length>=i?t[s[0]]:!1},o.get_widgets_overlapped=function(){var i=t([]),e=[],s=this.cells_occupied_by_player.rows.slice(0);return s.reverse(),t.each(this.cells_occupied_by_player.cols,t.proxy(function(r,o){t.each(s,t.proxy(function(s,r){if(!this.gridmap[o])return!0;var a=this.gridmap[o][r];this.is_occupied(o,r)&&!this.is_player(a)&&-1===t.inArray(a,e)&&(i=i.add(a),e.push(a))},this))},this)),i},o.on_start_overlapping_column=function(t){this.set_player(t,!1)},o.on_start_overlapping_row=function(t){this.set_player(!1,t)},o.on_stop_overlapping_column=function(t){this.set_player(t,!1);var i=this;this.for_each_widget_below(t,this.cells_occupied_by_player.rows[0],function(){i.move_widget_up(this,i.player_grid_data.size_y)})},o.on_stop_overlapping_row=function(t){this.set_player(!1,t);for(var i=this,e=this.cells_occupied_by_player.cols,s=0,r=e.length;r>s;s++)this.for_each_widget_below(e[s],t,function(){i.move_widget_up(this,i.player_grid_data.size_y)})},o.move_widget_to=function(i,e){var s=this,r=i.coords().grid;e-r.row;var o=this.widgets_below(i),a=this.can_move_to(r,r.col,e,i);return a===!1?!1:(this.remove_from_gridmap(r),r.row=e,this.add_to_gridmap(r),i.attr("data-row",e),this.$changed=this.$changed.add(i),o.each(function(i,e){var r=t(e),o=r.coords().grid,a=s.can_go_widget_up(o);a&&a!==o.row&&s.move_widget_to(r,a)}),this)},o.move_widget_up=function(i,e){var s=i.coords().grid,r=s.row,o=[];return e||(e=1),this.can_go_up(i)?(this.for_each_column_occupied(s,function(s){if(-1===t.inArray(i,o)){var a=i.coords().grid,h=r-e;if(h=this.can_go_up_to_row(a,s,h),!h)return!0;var n=this.widgets_below(i);this.remove_from_gridmap(a),a.row=h,this.add_to_gridmap(a),i.attr("data-row",a.row),this.$changed=this.$changed.add(i),o.push(i),n.each(t.proxy(function(i,s){this.move_widget_up(t(s),e)},this))}}),undefined):!1},o.move_widget_down=function(i,e){var s,r,o,a;
+if(0>=e)return!1;if(s=i.coords().grid,r=s.row,o=[],a=e,!i)return!1;if(-1===t.inArray(i,o)){var h=i.coords().grid,n=r+e,_=this.widgets_below(i);this.remove_from_gridmap(h),_.each(t.proxy(function(i,e){var s=t(e),r=s.coords().grid,o=this.displacement_diff(r,h,a);o>0&&this.move_widget_down(s,o)},this)),h.row=n,this.update_widget_position(h,i),i.attr("data-row",h.row),this.$changed=this.$changed.add(i),o.push(i)}},o.can_go_up_to_row=function(i,e,s){var r,o=this.gridmap,a=!0,h=[],n=i.row;if(this.for_each_column_occupied(i,function(t){for(o[t],h[t]=[],r=n;r--&&this.is_empty(t,r)&&!this.is_placeholder_in(t,r);)h[t].push(r);return h[t].length?undefined:(a=!1,!0)}),!a)return!1;for(r=s,r=1;n>r;r++){for(var _=!0,d=0,l=h.length;l>d;d++)h[d]&&-1===t.inArray(r,h[d])&&(_=!1);if(_===!0){a=r;break}}return a},o.displacement_diff=function(t,i,e){var s=t.row,r=[],o=i.row+i.size_y;this.for_each_column_occupied(t,function(t){for(var i=0,e=o;s>e;e++)this.is_empty(t,e)&&(i+=1);r.push(i)});var a=Math.max.apply(Math,r);return e-=a,e>0?e:0},o.widgets_below=function(i){var e=t.isPlainObject(i)?i:i.coords().grid,s=this;this.gridmap;var r=e.row+e.size_y-1,o=t([]);return this.for_each_column_occupied(e,function(i){s.for_each_widget_below(i,r,function(){return s.is_player(this)||-1!==t.inArray(this,o)?undefined:(o=o.add(this),!0)})}),this.sort_by_row_asc(o)},o.set_cells_player_occupies=function(t,i){return this.remove_from_gridmap(this.placeholder_grid_data),this.placeholder_grid_data.col=t,this.placeholder_grid_data.row=i,this.add_to_gridmap(this.placeholder_grid_data,this.$player),this},o.empty_cells_player_occupies=function(){return this.remove_from_gridmap(this.placeholder_grid_data),this},o.can_go_up=function(t){var i=t.coords().grid,e=i.row,s=e-1;this.gridmap;var r=!0;return 1===e?!1:(this.for_each_column_occupied(i,function(t){return this.is_widget(t,s),this.is_occupied(t,s)||this.is_player(t,s)||this.is_placeholder_in(t,s)||this.is_player_in(t,s)?(r=!1,!0):undefined}),r)},o.can_move_to=function(t,i,e,s){this.gridmap;var r=t.el,o={size_y:t.size_y,size_x:t.size_x,col:i,row:e},a=!0,h=i+t.size_x-1;return h>this.cols?!1:s&&e+t.size_y-1>s?!1:(this.for_each_cell_occupied(o,function(i,e){var s=this.is_widget(i,e);!s||t.el&&!s.is(r)||(a=!1)}),a)},o.get_targeted_columns=function(t){for(var i=(t||this.player_grid_data.col)+(this.player_grid_data.size_x-1),e=[],s=t;i>=s;s++)e.push(s);return e},o.get_targeted_rows=function(t){for(var i=(t||this.player_grid_data.row)+(this.player_grid_data.size_y-1),e=[],s=t;i>=s;s++)e.push(s);return e},o.get_cells_occupied=function(i){var e,s={cols:[],rows:[]};for(arguments[1]instanceof t&&(i=arguments[1].coords().grid),e=0;i.size_x>e;e++){var r=i.col+e;s.cols.push(r)}for(e=0;i.size_y>e;e++){var o=i.row+e;s.rows.push(o)}return s},o.for_each_cell_occupied=function(t,i){return this.for_each_column_occupied(t,function(e){this.for_each_row_occupied(t,function(t){i.call(this,e,t)})}),this},o.for_each_column_occupied=function(t,i){for(var e=0;t.size_x>e;e++){var s=t.col+e;i.call(this,s,t)}},o.for_each_row_occupied=function(t,i){for(var e=0;t.size_y>e;e++){var s=t.row+e;i.call(this,s,t)}},o._traversing_widgets=function(i,e,s,r,o){var a=this.gridmap;if(a[s]){var h,n,_=i+"/"+e;if(arguments[2]instanceof t){var d=arguments[2].coords().grid;s=d.col,r=d.row,o=arguments[3]}var l=[],c=r,p={"for_each/above":function(){for(;c--&&!(c>0&&this.is_widget(s,c)&&-1===t.inArray(a[s][c],l)&&(h=o.call(a[s][c],s,c),l.push(a[s][c]),h)););},"for_each/below":function(){for(c=r+1,n=a[s].length;n>c&&(!this.is_widget(s,c)||-1!==t.inArray(a[s][c],l)||(h=o.call(a[s][c],s,c),l.push(a[s][c]),!h));c++);}};p[_]&&p[_].call(this)}},o.for_each_widget_above=function(t,i,e){return this._traversing_widgets("for_each","above",t,i,e),this},o.for_each_widget_below=function(t,i,e){return this._traversing_widgets("for_each","below",t,i,e),this},o.get_highest_occupied_cell=function(){for(var t,i=this.gridmap,e=i[1].length,s=[],r=[],o=i.length-1;o>=1;o--)for(t=e-1;t>=1;t--)if(this.is_widget(o,t)){s.push(t),r.push(o);break}return{col:Math.max.apply(Math,r),row:Math.max.apply(Math,s)}},o.get_widgets_from=function(i,e){this.gridmap;var s=t();return i&&(s=s.add(this.$widgets.filter(function(){var e=t(this).attr("data-col");return e===i||e>i}))),e&&(s=s.add(this.$widgets.filter(function(){var i=t(this).attr("data-row");return i===e||i>e}))),s},o.set_dom_grid_height=function(t){if(t===undefined){var i=this.get_highest_occupied_cell().row;t=i*this.min_widget_height}return this.container_height=t,this.$el.css("height",this.container_height),this},o.set_dom_grid_width=function(t){return t===undefined&&(t=this.get_highest_occupied_cell().col),t=Math.min(this.options.max_cols,Math.max(t,this.options.min_cols)),this.container_width=t*this.min_widget_width,this.$el.css("width",this.container_width),this},o.generate_stylesheet=function(i){var e,r="",o=this.options.max_size_x||this.cols;i||(i={}),i.cols||(i.cols=this.cols),i.rows||(i.rows=this.rows),i.namespace||(i.namespace=this.options.namespace),i.widget_base_dimensions||(i.widget_base_dimensions=this.options.widget_base_dimensions),i.widget_margins||(i.widget_margins=this.options.widget_margins),i.min_widget_width=2*i.widget_margins[0]+i.widget_base_dimensions[0],i.min_widget_height=2*i.widget_margins[1]+i.widget_base_dimensions[1];var a=t.param(i);if(t.inArray(a,s.generated_stylesheets)>=0)return!1;for(s.generated_stylesheets.push(a),e=i.cols;e>=0;e--)r+=i.namespace+' [data-col="'+(e+1)+'"] { left:'+(e*i.widget_base_dimensions[0]+e*i.widget_margins[0]+(e+1)*i.widget_margins[0])+"px; }\n";for(e=i.rows;e>=0;e--)r+=i.namespace+' [data-row="'+(e+1)+'"] { top:'+(e*i.widget_base_dimensions[1]+e*i.widget_margins[1]+(e+1)*i.widget_margins[1])+"px; }\n";for(var h=1;i.rows>=h;h++)r+=i.namespace+' [data-sizey="'+h+'"] { height:'+(h*i.widget_base_dimensions[1]+(h-1)*2*i.widget_margins[1])+"px; }\n";for(var n=1;o>=n;n++)r+=i.namespace+' [data-sizex="'+n+'"] { width:'+(n*i.widget_base_dimensions[0]+(n-1)*2*i.widget_margins[0])+"px; }\n";return this.add_style_tag(r)},o.add_style_tag=function(t){var i=e,s=i.createElement("style");return i.getElementsByTagName("head")[0].appendChild(s),s.setAttribute("type","text/css"),s.styleSheet?s.styleSheet.cssText=t:s.appendChild(e.createTextNode(t)),this.$style_tags=this.$style_tags.add(s),this},o.remove_style_tags=function(){this.$style_tags.remove()},o.generate_faux_grid=function(t,i){this.faux_grid=[],this.gridmap=[];var e,s;for(e=i;e>0;e--)for(this.gridmap[e]=[],s=t;s>0;s--)this.add_faux_cell(s,e);return this},o.add_faux_cell=function(i,e){var s=t({left:this.baseX+(e-1)*this.min_widget_width,top:this.baseY+(i-1)*this.min_widget_height,width:this.min_widget_width,height:this.min_widget_height,col:e,row:i,original_col:e,original_row:i}).coords();return t.isArray(this.gridmap[e])||(this.gridmap[e]=[]),this.gridmap[e][i]=!1,this.faux_grid.push(s),this},o.add_faux_rows=function(t){for(var i=this.rows,e=i+(t||1),s=e;s>i;s--)for(var r=this.cols;r>=1;r--)this.add_faux_cell(s,r);return this.rows=e,this.options.autogenerate_stylesheet&&this.generate_stylesheet(),this},o.add_faux_cols=function(t){var i=this.cols,e=i+(t||1);e=Math.min(e,this.options.max_cols);for(var s=i+1;e>=s;s++)for(var r=this.rows;r>=1;r--)this.add_faux_cell(r,s);return this.cols=e,this.options.autogenerate_stylesheet&&this.generate_stylesheet(),this},o.recalculate_faux_grid=function(){var e=this.$wrapper.width();return this.baseX=(t(i).width()-e)/2,this.baseY=this.$wrapper.offset().top,t.each(this.faux_grid,t.proxy(function(t,i){this.faux_grid[t]=i.update({left:this.baseX+(i.data.col-1)*this.min_widget_width,top:this.baseY+(i.data.row-1)*this.min_widget_height})},this)),this},o.get_widgets_from_DOM=function(){return this.$widgets.each(t.proxy(function(i,e){this.register_widget(t(e))},this)),this},o.generate_grid_and_stylesheet=function(){var e=this.$wrapper.width(),s=this.options.max_cols,r=Math.floor(e/this.min_widget_width)+this.options.extra_cols,o=this.$widgets.map(function(){return t(this).attr("data-col")}).get();o.length||(o=[0]);var a=Math.max.apply(Math,o);this.cols=Math.max(a,r,this.options.min_cols),1/0!==s&&s>=a&&this.cols>s&&(this.cols=s);var h=this.options.extra_rows;return this.$widgets.each(function(i,e){h+=+t(e).attr("data-sizey")}),this.rows=Math.max(h,this.options.min_rows),this.baseX=(t(i).width()-e)/2,this.baseY=this.$wrapper.offset().top,this.options.autogenerate_stylesheet&&this.generate_stylesheet(),this.generate_faux_grid(this.rows,this.cols)},o.destroy=function(){return t(i).unbind(".gridster"),this.drag_api&&this.drag_api.destroy(),this.remove_style_tags(),this.$el.remove(),this},t.fn.gridster=function(i){return this.each(function(){t(this).data("gridster")||t(this).data("gridster",new s(this,i))})},t.Gridster=o}(jQuery,window,document);
\ No newline at end of file
diff --git a/dist/jquery.gridster.with-extras.js b/dist/jquery.gridster.with-extras.js
index 6d41c995a8..bd0fef1bcf 100644
--- a/dist/jquery.gridster.with-extras.js
+++ b/dist/jquery.gridster.with-extras.js
@@ -1,4 +1,4 @@
-/*! gridster.js - v0.2.1 - 2013-10-28
+/*! gridster.js - v0.3.0 - 2013-11-19
 * http://gridster.net/
 * Copyright (c) 2013 ducksboard; Licensed MIT */
 
@@ -138,7 +138,7 @@
         this.$element = el;
         this.last_colliders = [];
         this.last_colliders_coords = [];
-        if (typeof colliders === 'string' || colliders instanceof jQuery) {
+        if (typeof colliders === 'string' || colliders instanceof $) {
             this.$colliders = $(colliders,
                  this.options.colliders_context).not(this.$element);
         }else{
@@ -385,6 +385,7 @@
     };
 
     var $window = $(window);
+    var dir_map = { x : 'left', y : 'top' };
     var isTouch = !!('ontouchstart' in window);
     var pointer_events = {
         start: isTouch ? 'touchstart.gridster-draggable' : 'mousedown.gridster-draggable',
@@ -392,6 +393,10 @@
         end: isTouch ? 'touchend.gridster-draggable' : 'mouseup.gridster-draggable'
     };
 
+    var capitalize = function(str) {
+        return str.charAt(0).toUpperCase() + str.slice(1);
+    };
+
     /**
     * Basic drag implementation for DOM elements inside a container.
     * Provide start/stop/drag callbacks.
@@ -431,13 +436,13 @@
     var fn = Draggable.prototype;
 
     fn.init = function() {
-        this.calculate_positions();
+        this.calculate_dimensions();
         this.$container.css('position', 'relative');
         this.disabled = false;
         this.events();
 
         $(window).bind('resize.gridster-draggable',
-            throttle($.proxy(this.calculate_positions, this), 200));
+            throttle($.proxy(this.calculate_dimensions, this), 200));
     };
 
     fn.events = function() {
@@ -483,9 +488,10 @@
             mouse_actual_pos.left - this.mouse_init_pos.left);
         var diff_y = Math.round(mouse_actual_pos.top - this.mouse_init_pos.top);
 
-        var left = Math.round(this.el_init_offset.left + diff_x - this.baseX);
-        var top = Math.round(
-            this.el_init_offset.top + diff_y - this.baseY + this.scrollOffset);
+        var left = Math.round(this.el_init_offset.left +
+            diff_x - this.baseX + this.scroll_offset_x);
+        var top = Math.round(this.el_init_offset.top +
+            diff_y - this.baseY + this.scroll_offset_y);
 
         if (this.options.limit) {
             if (left > this.player_max_left) {
@@ -503,8 +509,8 @@
             pointer: {
                 left: mouse_actual_pos.left,
                 top: mouse_actual_pos.top,
-                diff_left: diff_x,
-                diff_top: diff_y + this.scrollOffset
+                diff_left: diff_x + this.scroll_offset_x,
+                diff_top: diff_y + this.scroll_offset_y
             }
         };
     };
@@ -519,42 +525,69 @@
     };
 
 
-    fn.manage_scroll = function(data) {
-        /* scroll document */
-        var nextScrollTop;
-        var scrollTop = $window.scrollTop();
-        var min_window_y = scrollTop;
-        var max_window_y = min_window_y + this.window_height;
+    fn.set_limits = function(container_width) {
+        container_width || (container_width = this.$container.width());
+        this.player_max_left = (container_width - this.player_width +
+            - this.options.offset_left);
 
-        var mouse_down_zone = max_window_y - 50;
-        var mouse_up_zone = min_window_y + 50;
+        this.options.container_width = container_width;
 
-        var abs_mouse_left = data.pointer.left;
-        var abs_mouse_top = min_window_y + data.pointer.top;
-
-        var max_player_y = (this.doc_height - this.window_height +
-            this.player_height);
-
-        if (abs_mouse_top >= mouse_down_zone) {
-            nextScrollTop = scrollTop + 30;
-            if (nextScrollTop < max_player_y) {
-                $window.scrollTop(nextScrollTop);
-                this.scrollOffset = this.scrollOffset + 30;
-            }
-        }
-
-        if (abs_mouse_top <= mouse_up_zone) {
-            nextScrollTop = scrollTop - 30;
-            if (nextScrollTop > 0) {
-                $window.scrollTop(nextScrollTop);
-                this.scrollOffset = this.scrollOffset - 30;
-            }
-        }
+        return this;
     };
 
 
-    fn.calculate_positions = function(e) {
+    fn.scroll_in = function(axis, data) {
+        var dir_prop = dir_map[axis];
+
+        var area_size = 50;
+        var scroll_inc = 30;
+
+        var is_x = axis === 'x';
+        var window_size = is_x ? this.window_width : this.window_height;
+        var doc_size = is_x ? $(document).width() : $(document).height();
+        var player_size = is_x ? this.$player.width() : this.$player.height();
+
+        var next_scroll;
+        var scroll_offset = $window['scroll' + capitalize(dir_prop)]();
+        var min_window_pos = scroll_offset;
+        var max_window_pos = min_window_pos + window_size;
+
+        var mouse_next_zone = max_window_pos - area_size;  // down/right
+        var mouse_prev_zone = min_window_pos + area_size;  // up/left
+
+        var abs_mouse_pos = min_window_pos + data.pointer[dir_prop];
+
+        var max_player_pos = (doc_size - window_size + player_size);
+
+        if (abs_mouse_pos >= mouse_next_zone) {
+            next_scroll = scroll_offset + scroll_inc;
+            if (next_scroll < max_player_pos) {
+                $window['scroll' + capitalize(dir_prop)](next_scroll);
+                this['scroll_offset_' + axis] += scroll_inc;
+            }
+        }
+
+        if (abs_mouse_pos <= mouse_prev_zone) {
+            next_scroll = scroll_offset - scroll_inc;
+            if (next_scroll > 0) {
+                $window['scroll' + capitalize(dir_prop)](next_scroll);
+                this['scroll_offset_' + axis] -= scroll_inc;
+            }
+        }
+
+        return this;
+    };
+
+
+    fn.manage_scroll = function(data) {
+        this.scroll_in('x', data);
+        this.scroll_in('y', data);
+    };
+
+
+    fn.calculate_dimensions = function(e) {
         this.window_height = $window.height();
+        this.window_width = $window.width();
     };
 
 
@@ -614,7 +647,7 @@
         var offset = this.$container.offset();
         this.baseX = Math.round(offset.left);
         this.baseY = Math.round(offset.top);
-        this.doc_height = $(document).height();
+        this.initial_container_width = this.options.container_width || this.$container.width();
 
         if (this.options.helper === 'clone') {
             this.$helper = this.$player.clone()
@@ -624,14 +657,13 @@
             this.helper = false;
         }
 
-        this.scrollOffset = 0;
+        this.scroll_offset_y = 0;
+        this.scroll_offset_x = 0;
         this.el_init_offset = this.$player.offset();
         this.player_width = this.$player.width();
         this.player_height = this.$player.height();
 
-        var container_width = this.options.container_width || this.$container.width();
-        this.player_max_left = (container_width - this.player_width +
-            this.options.offset_left);
+        this.set_limits(this.options.container_width);
 
         if (this.options.start) {
             this.options.start.call(this.$player, e, this.get_drag_data(e));
@@ -734,9 +766,10 @@
         extra_rows: 0,
         extra_cols: 0,
         min_cols: 1,
-        max_cols: null,
+        max_cols: Infinity,
         min_rows: 15,
         max_size_x: false,
+        autogrow_cols: false,
         autogenerate_stylesheet: true,
         avoid_overlapped_widgets: true,
         serialize_params: function($w, wgd) {
@@ -856,6 +889,7 @@
         this.generate_grid_and_stylesheet();
         this.get_widgets_from_DOM();
         this.set_dom_grid_height();
+        this.set_dom_grid_width();
         this.$wrapper.addClass('ready');
         this.draggable();
         this.options.resize.enabled && this.resizable();
@@ -1017,38 +1051,36 @@
     * @param {HTMLElement} $widget The jQuery wrapped HTMLElement
     *  representing the widget.
     * @param {Number} size_x The number of columns that will occupy the widget.
-    * @param {Number} size_y The number of rows that will occupy the widget.
-    * @param {Boolean} [reposition] Set to false to not move the widget to
-    *  the left if there is insufficient space on the right.
     *  By default <code>size_x</code> is limited to the space available from
     *  the column where the widget begins, until the last column to the right.
+    * @param {Number} size_y The number of rows that will occupy the widget.
     * @param {Function} [callback] Function executed when the widget is removed.
     * @return {HTMLElement} Returns $widget.
     */
-    fn.resize_widget = function($widget, size_x, size_y, reposition, callback) {
+    fn.resize_widget = function($widget, size_x, size_y, callback) {
         var wgd = $widget.coords().grid;
-        reposition !== false && (reposition = true);
-        size_x || (size_x = wgd.size_x);
-        size_y || (size_y = wgd.size_y);
-
-        if (size_x > this.cols) {
-            size_x = this.cols;
-        }
-
+        var col = wgd.col;
+        var max_cols = this.options.max_cols;
         var old_size_y = wgd.size_y;
         var old_col = wgd.col;
         var new_col = old_col;
 
-        if (reposition && old_col + size_x - 1 > this.cols) {
-            var diff = old_col + (size_x - 1) - this.cols;
-            var c = old_col - diff;
-            new_col = Math.max(1, c);
+        size_x || (size_x = wgd.size_x);
+        size_y || (size_y = wgd.size_y);
+
+        if (max_cols !== Infinity) {
+            size_x = Math.min(size_x, max_cols - col + 1);
         }
 
         if (size_y > old_size_y) {
             this.add_faux_rows(Math.max(size_y - old_size_y, 0));
         }
 
+        var player_rcol = (col + size_x - 1);
+        if (player_rcol > this.cols) {
+            this.add_faux_cols(player_rcol - this.cols);
+        }
+
         var new_grid_data = {
             col: new_col,
             row: wgd.row,
@@ -1059,6 +1091,7 @@
         this.mutate_widget_in_gridmap($widget, wgd, new_grid_data);
 
         this.set_dom_grid_height();
+        this.set_dom_grid_width();
 
         if (callback) {
             callback.call(this, new_grid_data.size_x, new_grid_data.size_y);
@@ -1297,7 +1330,7 @@
     * @return {Class} Returns the instance of the Gridster Class.
     */
     fn.remove_widget = function(el, silent, callback) {
-        var $el = el instanceof jQuery ? el : $(el);
+        var $el = el instanceof $ ? el : $(el);
         var wgd = $el.coords().grid;
 
         // if silent is a function assume it's a callback
@@ -1495,7 +1528,9 @@
         var self = this;
         var draggable_options = $.extend(true, {}, this.options.draggable, {
             offset_left: this.options.widget_margins[0],
+            offset_top: this.options.widget_margins[1],
             container_width: this.container_width,
+            limit: true,
             ignore_dragging: ['INPUT', 'TEXTAREA', 'SELECT', 'BUTTON',
                 '.' + this.options.resize.handle_class],
             start: function(event, ui) {
@@ -1537,6 +1572,8 @@
             offset_left: this.options.widget_margins[0],
             container_width: this.container_width,
             move_element: false,
+            resize: true,
+            limit: this.options.autogrow_cols ? false : true,
             start: $.proxy(this.on_start_resize, this),
             stop: $.proxy(function(event, ui) {
                 delay($.proxy(function() {
@@ -1579,13 +1616,22 @@
     fn.on_start_drag = function(event, ui) {
         this.$helper.add(this.$player).add(this.$wrapper).addClass('dragging');
 
+        this.highest_col = this.get_highest_occupied_cell().col;
+
         this.$player.addClass('player');
         this.player_grid_data = this.$player.coords().grid;
         this.placeholder_grid_data = $.extend({}, this.player_grid_data);
 
-        //set new grid height along the dragging period
-        this.$el.css('height', this.$el.height() +
-          (this.player_grid_data.size_y * this.min_widget_height));
+        this.set_dom_grid_height(this.$el.height() +
+                      (this.player_grid_data.size_y * this.min_widget_height));
+
+        this.set_dom_grid_width(this.highest_col + 1);
+
+        // auto grow cols
+        var cols_diff = this.cols - this.highest_col;
+        if (cols_diff < this.player_grid_data.size_x) {
+            this.add_faux_cols(this.player_grid_data.size_x - cols_diff);
+        }
 
         var colliders = this.faux_grid;
         var coords = this.$player.data('coords').coords;
@@ -1649,6 +1695,19 @@
             this.on_stop_overlapping_row
         );
 
+        //auto grow cols
+        if (this.options.autogrow_cols) {
+            var prcol = this.placeholder_grid_data.col +
+                this.placeholder_grid_data.size_x - 1;
+            if (prcol === this.highest_col) {
+                if (prcol < this.cols) {
+                    this.set_dom_grid_width(prcol + 1);
+                }
+                this.highest_col = prcol + 1;
+                this.drag_api.set_limits(this.container_width);
+            }
+        }
+
         if (this.helper && this.$player) {
             this.$player.css({
                 'left': ui.position.left,
@@ -1720,6 +1779,11 @@
         this.cells_occupied_by_player = {};
 
         this.set_dom_grid_height();
+        this.set_dom_grid_width();
+
+        if (this.options.autogrow_cols) {
+            this.drag_api.set_limits(this.container_width);
+        }
     };
 
 
@@ -1739,12 +1803,16 @@
         this.resize_initial_height = this.resize_coords.coords.height;
         this.resize_initial_sizex = this.resize_coords.grid.size_x;
         this.resize_initial_sizey = this.resize_coords.grid.size_y;
+        this.resize_initial_col = this.resize_coords.grid.col;
         this.resize_last_sizex = this.resize_initial_sizex;
         this.resize_last_sizey = this.resize_initial_sizey;
+
         this.resize_max_size_x = Math.min(this.resize_wgd.max_size_x ||
-            this.options.resize.max_size[0], this.cols - this.resize_wgd.col + 1);
+            this.options.resize.max_size[0],
+            this.options.max_cols - this.resize_initial_col + 1);
         this.resize_max_size_y = this.resize_wgd.max_size_y ||
             this.options.resize.max_size[1];
+        this.resize_initial_last_col = this.get_highest_occupied_cell().col;
 
         this.resize_dir = {
             right: ui.$player.is('.' + this.resize_handle_class + '-x'),
@@ -1799,6 +1867,12 @@
                 });
         }, this), 300);
 
+        this.set_dom_grid_width();
+
+        if (this.options.autogrow_cols) {
+            this.drag_api.set_limits(this.container_width);
+        }
+
         if (this.options.resize.stop) {
             this.options.resize.stop.call(this, event, ui, this.$resized_widget);
         }
@@ -1845,6 +1919,20 @@
             size_x = this.resize_initial_sizex;
         }
 
+
+        if (this.options.autogrow_cols) {
+            // auto grow cols
+            var last_widget_col = this.resize_initial_col + size_x - 1;
+            if (this.options.autogrow_cols && this.resize_initial_last_col <= last_widget_col) {
+                this.set_dom_grid_width(last_widget_col + 1);
+
+                if (this.cols < last_widget_col) {
+                    this.add_faux_cols(last_widget_col - this.cols);
+                }
+            }
+        }
+
+
         var css_props = {};
         !this.resize_dir.bottom && (css_props.width = Math.min(
             this.resize_initial_width + rel_x, max_width));
@@ -1856,7 +1944,7 @@
         if (size_x !== this.resize_last_sizex ||
             size_y !== this.resize_last_sizey) {
 
-            this.resize_widget(this.$resized_widget, size_x, size_y, false);
+            this.resize_widget(this.$resized_widget, size_x, size_y);
 
             this.$resize_preview_holder.css({
                 'width': '',
@@ -3082,7 +3170,7 @@
     fn.get_cells_occupied = function(el_grid_data) {
         var cells = { cols: [], rows: []};
         var i;
-        if (arguments[1] instanceof jQuery) {
+        if (arguments[1] instanceof $) {
             el_grid_data = arguments[1].coords().grid;
         }
 
@@ -3166,7 +3254,7 @@
 
         var cr, max;
         var action = type + '/' + direction;
-        if (arguments[2] instanceof jQuery) {
+        if (arguments[2] instanceof $) {
             var el_grid_data = arguments[2].coords().grid;
             col = el_grid_data.col;
             row = el_grid_data.row;
@@ -3250,26 +3338,23 @@
     fn.get_highest_occupied_cell = function() {
         var r;
         var gm = this.gridmap;
-        var rows = [];
+        var rl = gm[1].length;
+        var rows = [], cols = [];
         var row_in_col = [];
         for (var c = gm.length - 1; c >= 1; c--) {
-            for (r = gm[c].length - 1; r >= 1; r--) {
+            for (r = rl - 1; r >= 1; r--) {
                 if (this.is_widget(c, r)) {
                     rows.push(r);
-                    row_in_col[r] = c;
+                    cols.push(c);
                     break;
                 }
             }
         }
 
-        var highest_row = Math.max.apply(Math, rows);
-
-        this.highest_occupied_cell = {
-            col: row_in_col[highest_row],
-            row: highest_row
+        return {
+            col: Math.max.apply(Math, cols),
+            row: Math.max.apply(Math, rows)
         };
-
-        return this.highest_occupied_cell;
     };
 
 
@@ -3305,9 +3390,34 @@
     * @method set_dom_grid_height
     * @return {Object} Returns the instance of the Gridster class.
     */
-    fn.set_dom_grid_height = function() {
-        var r = this.get_highest_occupied_cell().row;
-        this.$el.css('height', r * this.min_widget_height);
+    fn.set_dom_grid_height = function(height) {
+        if (typeof height === 'undefined') {
+            var r = this.get_highest_occupied_cell().row;
+            height = r * this.min_widget_height;
+        }
+
+        this.container_height = height;
+        this.$el.css('height', this.container_height);
+        return this;
+    };
+
+    /**
+    * Set the current width of the parent grid.
+    *
+    * @method set_dom_grid_width
+    * @return {Object} Returns the instance of the Gridster class.
+    */
+    fn.set_dom_grid_width = function(cols) {
+        var width;
+
+        if (typeof cols === 'undefined') {
+            cols = this.get_highest_occupied_cell().col;
+        }
+
+        cols = Math.min(this.options.max_cols,
+            Math.max(cols, this.options.min_cols));
+        this.container_width = cols * this.min_widget_width;
+        this.$el.css('width', this.container_width);
         return this;
     };
 
@@ -3509,8 +3619,9 @@
     fn.add_faux_cols = function(cols) {
         var actual_cols = this.cols;
         var max_cols = actual_cols + (cols || 1);
+        max_cols = Math.min(max_cols, this.options.max_cols);
 
-        for (var c = actual_cols; c < max_cols; c++) {
+        for (var c = actual_cols + 1; c <= max_cols; c++) {
             for (var r = this.rows; r >= 1; r--) {
                 this.add_faux_cell(r, c);
             }
@@ -3573,7 +3684,6 @@
     */
     fn.generate_grid_and_stylesheet = function() {
         var aw = this.$wrapper.width();
-        var ah = this.$wrapper.height();
         var max_cols = this.options.max_cols;
 
         var cols = Math.floor(aw / this.min_widget_width) +
@@ -3588,28 +3698,23 @@
 
         var min_cols = Math.max.apply(Math, actual_cols);
 
+        this.cols = Math.max(min_cols, cols, this.options.min_cols);
+
+        if (max_cols !== Infinity && max_cols >= min_cols && max_cols < this.cols) {
+            this.cols = max_cols;
+        }
+
         // get all rows that could be occupied by the current widgets
         var max_rows = this.options.extra_rows;
         this.$widgets.each(function(i, w) {
             max_rows += (+$(w).attr('data-sizey'));
         });
 
-        this.cols = Math.max(min_cols, cols, this.options.min_cols);
-
-        if (max_cols && max_cols >= min_cols && max_cols < this.cols) {
-            this.cols = max_cols;
-        }
-
         this.rows = Math.max(max_rows, this.options.min_rows);
 
         this.baseX = ($(window).width() - aw) / 2;
         this.baseY = this.$wrapper.offset().top;
 
-        // left and right gutters not included
-        this.container_width = (this.cols *
-            this.options.widget_base_dimensions[0]) + ((this.cols - 1) * 2 *
-            this.options.widget_margins[0]);
-
         if (this.options.autogenerate_stylesheet) {
             this.generate_stylesheet();
         }
diff --git a/dist/jquery.gridster.with-extras.min.js b/dist/jquery.gridster.with-extras.min.js
index e8b2824f37..768e5a3b49 100644
--- a/dist/jquery.gridster.with-extras.min.js
+++ b/dist/jquery.gridster.with-extras.min.js
@@ -1,2 +1,2 @@
-/*! gridster.js - v0.2.1 - 2013-10-28 - * http://gridster.net/ - Copyright (c) 2013 ducksboard; Licensed MIT */ !function(a){function b(b){return b[0]&&a.isPlainObject(b[0])?this.data=b[0]:this.el=b,this.isCoords=!0,this.coords={},this.init(),this}var c=b.prototype;c.init=function(){this.set(),this.original_coords=this.get()},c.set=function(a,b){var c=this.el;if(c&&!a&&(this.data=c.offset(),this.data.width=c.width(),this.data.height=c.height()),c&&a&&!b){var d=c.offset();this.data.top=d.top,this.data.left=d.left}var e=this.data;return this.coords.x1=e.left,this.coords.y1=e.top,this.coords.x2=e.left+e.width,this.coords.y2=e.top+e.height,this.coords.cx=e.left+e.width/2,this.coords.cy=e.top+e.height/2,this.coords.width=e.width,this.coords.height=e.height,this.coords.el=c||!1,this},c.update=function(b){if(!b&&!this.el)return this;if(b){var c=a.extend({},this.data,b);return this.data=c,this.set(!0,!0)}return this.set(!0),this},c.get=function(){return this.coords},a.fn.coords=function(){if(this.data("coords"))return this.data("coords");var a=new b(this,arguments[0]);return this.data("coords",a),a}}(jQuery,window,document),function(a,b,c){function d(b,c,d){this.options=a.extend(e,d),this.$element=b,this.last_colliders=[],this.last_colliders_coords=[],"string"==typeof c||c instanceof jQuery?this.$colliders=a(c,this.options.colliders_context).not(this.$element):this.colliders=a(c),this.init()}var e={colliders_context:c.body},f=d.prototype;f.init=function(){this.find_collisions()},f.overlaps=function(a,b){var c=!1,d=!1;return(b.x1>=a.x1&&b.x1<=a.x2||b.x2>=a.x1&&b.x2<=a.x2||a.x1>=b.x1&&a.x2<=b.x2)&&(c=!0),(b.y1>=a.y1&&b.y1<=a.y2||b.y2>=a.y1&&b.y2<=a.y2||a.y1>=b.y1&&a.y2<=b.y2)&&(d=!0),c&&d},f.detect_overlapping_region=function(a,b){var c="",d="";return a.y1>b.cy&&a.y1<b.y2&&(c="N"),a.y2>b.y1&&a.y2<b.cy&&(c="S"),a.x1>b.cx&&a.x1<b.x2&&(d="W"),a.x2>b.x1&&a.x2<b.cx&&(d="E"),c+d||"C"},f.calculate_overlapped_area_coords=function(b,c){var d=Math.max(b.x1,c.x1),e=Math.max(b.y1,c.y1),f=Math.min(b.x2,c.x2),g=Math.min(b.y2,c.y2);return a({left:d,top:e,width:f-d,height:g-e}).coords().get()},f.calculate_overlapped_area=function(a){return a.width*a.height},f.manage_colliders_start_stop=function(b,c,d){for(var e=this.last_colliders_coords,f=0,g=e.length;g>f;f++)-1===a.inArray(e[f],b)&&c.call(this,e[f]);for(var h=0,i=b.length;i>h;h++)-1===a.inArray(b[h],e)&&d.call(this,b[h])},f.find_collisions=function(b){for(var c=this,d=[],e=[],f=this.colliders||this.$colliders,g=f.length,h=c.$element.coords().update(b||!1).get();g--;){var i=c.$colliders?a(f[g]):f[g],j=i.isCoords?i:i.coords(),k=j.get(),l=c.overlaps(h,k);if(l){var m=c.detect_overlapping_region(h,k);if("C"===m){var n=c.calculate_overlapped_area_coords(h,k),o=c.calculate_overlapped_area(n),p={area:o,area_coords:n,region:m,coords:k,player_coords:h,el:i};c.options.on_overlap&&c.options.on_overlap.call(this,p),d.push(j),e.push(p)}}}return(c.options.on_overlap_stop||c.options.on_overlap_start)&&this.manage_colliders_start_stop(d,c.options.on_overlap_start,c.options.on_overlap_stop),this.last_colliders_coords=d,e},f.get_closest_colliders=function(a){var b=this.find_collisions(a);return b.sort(function(a,b){return"C"===a.region&&"C"===b.region?a.coords.y1<b.coords.y1||a.coords.x1<b.coords.x1?-1:1:a.area<b.area?1:1}),b},a.fn.collision=function(a,b){return new d(this,a,b)}}(jQuery,window,document),function(a){a.delay=function(a,b){var c=Array.prototype.slice.call(arguments,2);return setTimeout(function(){return a.apply(null,c)},b)},a.debounce=function(a,b,c){var d;return function(){var e=this,f=arguments,g=function(){d=null,c||a.apply(e,f)};c&&!d&&a.apply(e,f),clearTimeout(d),d=setTimeout(g,b)}},a.throttle=function(a,b){var c,d,e,f,g,h,i=debounce(function(){g=f=!1},b);return function(){c=this,d=arguments;var j=function(){e=null,g&&a.apply(c,d),i()};return e||(e=setTimeout(j,b)),f?g=!0:h=a.apply(c,d),i(),f=!0,h}}}(window),function(a,b,c){function d(b,d){this.options=a.extend({},e,d),this.$body=a(c.body),this.$container=a(b),this.$dragitems=a(this.options.items,this.$container),this.is_dragging=!1,this.player_min_left=0+this.options.offset_left,this.init()}var e={items:"li",distance:1,limit:!0,offset_left:0,autoscroll:!0,ignore_dragging:["INPUT","TEXTAREA","SELECT","BUTTON"],handle:null,container_width:0,move_element:!0,helper:!1},f=a(b),g=!!("ontouchstart"in b),h={start:g?"touchstart.gridster-draggable":"mousedown.gridster-draggable",move:g?"touchmove.gridster-draggable":"mousemove.gridster-draggable",end:g?"touchend.gridster-draggable":"mouseup.gridster-draggable"},i=d.prototype;i.init=function(){this.calculate_positions(),this.$container.css("position","relative"),this.disabled=!1,this.events(),a(b).bind("resize.gridster-draggable",throttle(a.proxy(this.calculate_positions,this),200))},i.events=function(){this.$container.on("selectstart.gridster-draggable",a.proxy(this.on_select_start,this)),this.$container.on(h.start,this.options.items,a.proxy(this.drag_handler,this)),this.$body.on(h.end,a.proxy(function(a){this.is_dragging=!1,this.disabled||(this.$body.off(h.move),this.drag_start&&this.on_dragstop(a))},this))},i.get_actual_pos=function(a){var b=a.position();return b},i.get_mouse_pos=function(a){if(g){var b=a.originalEvent;a=b.touches.length?b.touches[0]:b.changedTouches[0]}return{left:a.clientX,top:a.clientY}},i.get_offset=function(a){a.preventDefault();var b=this.get_mouse_pos(a),c=Math.round(b.left-this.mouse_init_pos.left),d=Math.round(b.top-this.mouse_init_pos.top),e=Math.round(this.el_init_offset.left+c-this.baseX),f=Math.round(this.el_init_offset.top+d-this.baseY+this.scrollOffset);return this.options.limit&&(e>this.player_max_left?e=this.player_max_left:e<this.player_min_left&&(e=this.player_min_left)),{position:{left:e,top:f},pointer:{left:b.left,top:b.top,diff_left:c,diff_top:d+this.scrollOffset}}},i.get_drag_data=function(a){var b=this.get_offset(a);return b.$player=this.$player,b.$helper=this.helper?this.$helper:this.$player,b},i.manage_scroll=function(a){var b,c=f.scrollTop(),d=c,e=d+this.window_height,g=e-50,h=d+50;a.pointer.left;var i=d+a.pointer.top,j=this.doc_height-this.window_height+this.player_height;i>=g&&(b=c+30,j>b&&(f.scrollTop(b),this.scrollOffset=this.scrollOffset+30)),h>=i&&(b=c-30,b>0&&(f.scrollTop(b),this.scrollOffset=this.scrollOffset-30))},i.calculate_positions=function(){this.window_height=f.height()},i.drag_handler=function(b){if(b.target.nodeName,!this.disabled&&(1===b.which||g)&&!this.ignore_drag(b)){var c=this,d=!0;return this.$player=a(b.currentTarget),this.el_init_pos=this.get_actual_pos(this.$player),this.mouse_init_pos=this.get_mouse_pos(b),this.offsetY=this.mouse_init_pos.top-this.el_init_pos.top,this.$body.on(h.move,function(a){var b=c.get_mouse_pos(a),e=Math.abs(b.left-c.mouse_init_pos.left),f=Math.abs(b.top-c.mouse_init_pos.top);return e>c.options.distance||f>c.options.distance?d?(d=!1,c.on_dragstart.call(c,a),!1):(c.is_dragging===!0&&c.on_dragmove.call(c,a),!1):!1}),g?void 0:!1}},i.on_dragstart=function(b){if(b.preventDefault(),this.is_dragging)return this;this.drag_start=this.is_dragging=!0;var d=this.$container.offset();this.baseX=Math.round(d.left),this.baseY=Math.round(d.top),this.doc_height=a(c).height(),"clone"===this.options.helper?(this.$helper=this.$player.clone().appendTo(this.$container).addClass("helper"),this.helper=!0):this.helper=!1,this.scrollOffset=0,this.el_init_offset=this.$player.offset(),this.player_width=this.$player.width(),this.player_height=this.$player.height();var e=this.options.container_width||this.$container.width();return this.player_max_left=e-this.player_width+this.options.offset_left,this.options.start&&this.options.start.call(this.$player,b,this.get_drag_data(b)),!1},i.on_dragmove=function(a){var b=this.get_drag_data(a);this.options.autoscroll&&this.manage_scroll(b),this.options.move_element&&(this.helper?this.$helper:this.$player).css({position:"absolute",left:b.position.left,top:b.position.top});var c=this.last_position||b.position;return b.prev_position=c,this.options.drag&&this.options.drag.call(this.$player,a,b),this.last_position=b.position,!1},i.on_dragstop=function(a){var b=this.get_drag_data(a);return this.drag_start=!1,this.options.stop&&this.options.stop.call(this.$player,a,b),this.helper&&this.$helper.remove(),!1},i.on_select_start=function(a){return this.disabled||this.ignore_drag(a)?void 0:!1},i.enable=function(){this.disabled=!1},i.disable=function(){this.disabled=!0},i.destroy=function(){this.disable(),this.$container.off(".gridster-draggable"),this.$body.off(".gridster-draggable"),a(b).off(".gridster-draggable"),a.removeData(this.$container,"drag")},i.ignore_drag=function(b){return this.options.handle?!a(b.target).is(this.options.handle):a(b.target).is(this.options.ignore_dragging.join(", "))},a.fn.drag=function(a){return new d(this,a)}}(jQuery,window,document),function(a,b,c){function d(b,c){this.options=a.extend(!0,e,c),this.$el=a(b),this.$wrapper=this.$el.parent(),this.$widgets=this.$el.children(this.options.widget_selector).addClass("gs-w"),this.widgets=[],this.$changed=a([]),this.wrapper_width=this.$wrapper.width(),this.min_widget_width=2*this.options.widget_margins[0]+this.options.widget_base_dimensions[0],this.min_widget_height=2*this.options.widget_margins[1]+this.options.widget_base_dimensions[1],this.$style_tags=a([]),this.init()}var e={namespace:"",widget_selector:"li",widget_margins:[10,10],widget_base_dimensions:[400,225],extra_rows:0,extra_cols:0,min_cols:1,max_cols:null,min_rows:15,max_size_x:!1,autogenerate_stylesheet:!0,avoid_overlapped_widgets:!0,serialize_params:function(a,b){return{col:b.col,row:b.row,size_x:b.size_x,size_y:b.size_y}},collision:{},draggable:{items:".gs-w",distance:4},resize:{enabled:!1,axes:["x","y","both"],handle_append_to:"",handle_class:"gs-resize-handle",max_size:[1/0,1/0]}};d.generated_stylesheets=[];var f=d.prototype;f.init=function(){this.options.resize.enabled&&this.setup_resize(),this.generate_grid_and_stylesheet(),this.get_widgets_from_DOM(),this.set_dom_grid_height(),this.$wrapper.addClass("ready"),this.draggable(),this.options.resize.enabled&&this.resizable(),a(b).bind("resize.gridster",throttle(a.proxy(this.recalculate_faux_grid,this),200))},f.disable=function(){return this.$wrapper.find(".player-revert").removeClass("player-revert"),this.drag_api.disable(),this},f.enable=function(){return this.drag_api.enable(),this},f.disable_resize=function(){return this.$el.addClass("gs-resize-disabled"),this.resize_api.disable(),this},f.enable_resize=function(){return this.$el.removeClass("gs-resize-disabled"),this.resize_api.enable(),this},f.add_widget=function(b,c,d,e,f,g){var h;c||(c=1),d||(d=1),!e&!f?h=this.next_position(c,d):(h={col:e,row:f},this.empty_cells(e,f,c,d));var i=a(b).attr({"data-col":h.col,"data-row":h.row,"data-sizex":c,"data-sizey":d}).addClass("gs-w").appendTo(this.$el).hide();return this.$widgets=this.$widgets.add(i),this.register_widget(i),this.add_faux_rows(h.size_y),g&&this.set_widget_max_size(i,g),this.set_dom_grid_height(),i.fadeIn()},f.set_widget_max_size=function(a,b){if(a="number"==typeof a?this.$widgets.eq(a):a,!a.length)return this;var c=a.data("coords").grid;return c.max_size_x=b[0],c.max_size_y=b[1],this},f.add_resize_handle=function(b){var c=this.options.resize.handle_append_to;return a(this.resize_handle_tpl).appendTo(c?a(c,b):b),this},f.resize_widget=function(a,b,c,d,e){var f=a.coords().grid;d!==!1&&(d=!0),b||(b=f.size_x),c||(c=f.size_y),b>this.cols&&(b=this.cols);var g=f.size_y,h=f.col,i=h;if(d&&h+b-1>this.cols){var j=h+(b-1)-this.cols,k=h-j;i=Math.max(1,k)}c>g&&this.add_faux_rows(Math.max(c-g,0));var l={col:i,row:f.row,size_x:b,size_y:c};return this.mutate_widget_in_gridmap(a,f,l),this.set_dom_grid_height(),e&&e.call(this,l.size_x,l.size_y),a},f.mutate_widget_in_gridmap=function(b,c,d){c.size_x;var e=c.size_y,f=this.get_cells_occupied(c),g=this.get_cells_occupied(d),h=[];a.each(f.cols,function(b,c){-1===a.inArray(c,g.cols)&&h.push(c)});var i=[];a.each(g.cols,function(b,c){-1===a.inArray(c,f.cols)&&i.push(c)});var j=[];a.each(f.rows,function(b,c){-1===a.inArray(c,g.rows)&&j.push(c)});var k=[];if(a.each(g.rows,function(b,c){-1===a.inArray(c,f.rows)&&k.push(c)}),this.remove_from_gridmap(c),i.length){var l=[d.col,d.row,d.size_x,Math.min(e,d.size_y),b];this.empty_cells.apply(this,l)}if(k.length){var m=[d.col,d.row,d.size_x,d.size_y,b];this.empty_cells.apply(this,m)}if(c.col=d.col,c.row=d.row,c.size_x=d.size_x,c.size_y=d.size_y,this.add_to_gridmap(d,b),b.removeClass("player-revert"),b.data("coords").update({width:d.size_x*this.options.widget_base_dimensions[0]+2*(d.size_x-1)*this.options.widget_margins[0],height:d.size_y*this.options.widget_base_dimensions[1]+2*(d.size_y-1)*this.options.widget_margins[1]}),b.attr({"data-col":d.col,"data-row":d.row,"data-sizex":d.size_x,"data-sizey":d.size_y}),h.length){var n=[h[0],d.row,h.length,Math.min(e,d.size_y),b];this.remove_empty_cells.apply(this,n)}if(j.length){var o=[d.col,d.row,d.size_x,d.size_y,b];this.remove_empty_cells.apply(this,o)}return this.move_widget_up(b),this},f.empty_cells=function(b,c,d,e,f){var g=this.widgets_below({col:b,row:c-e,size_x:d,size_y:e});return g.not(f).each(a.proxy(function(b,d){var f=a(d).coords().grid;if(f.row<=c+e-1){var g=c+e-f.row;this.move_widget_down(a(d),g)}},this)),this.set_dom_grid_height(),this},f.remove_empty_cells=function(b,c,d,e,f){var g=this.widgets_below({col:b,row:c,size_x:d,size_y:e});return g.not(f).each(a.proxy(function(b,c){this.move_widget_up(a(c),e)},this)),this.set_dom_grid_height(),this},f.next_position=function(a,b){a||(a=1),b||(b=1);for(var c,d=this.gridmap,e=d.length,f=[],g=1;e>g;g++){c=d[g].length;for(var h=1;c>=h;h++){var i=this.can_move_to({size_x:a,size_y:b},g,h);i&&f.push({col:g,row:h,size_y:b,size_x:a})}}return f.length?this.sort_by_row_and_col_asc(f)[0]:!1},f.remove_widget=function(b,c,d){var e=b instanceof jQuery?b:a(b),f=e.coords().grid;a.isFunction(c)&&(d=c,c=!1),this.cells_occupied_by_placeholder={},this.$widgets=this.$widgets.not(e);var g=this.widgets_below(e);return this.remove_from_gridmap(f),e.fadeOut(a.proxy(function(){e.remove(),c||g.each(a.proxy(function(b,c){this.move_widget_up(a(c),f.size_y)},this)),this.set_dom_grid_height(),d&&d.call(this,b)},this)),this},f.remove_all_widgets=function(b){return this.$widgets.each(a.proxy(function(a,c){this.remove_widget(c,!0,b)},this)),this},f.serialize=function(b){b||(b=this.$widgets);var c=[];return b.each(a.proxy(function(b,d){c.push(this.options.serialize_params(a(d),a(d).coords().grid))},this)),c},f.serialize_changed=function(){return this.serialize(this.$changed)},f.register_widget=function(b){var c={col:parseInt(b.attr("data-col"),10),row:parseInt(b.attr("data-row"),10),size_x:parseInt(b.attr("data-sizex"),10),size_y:parseInt(b.attr("data-sizey"),10),max_size_x:parseInt(b.attr("data-max-sizex"),10)||!1,max_size_y:parseInt(b.attr("data-max-sizey"),10)||!1,el:b};return this.options.avoid_overlapped_widgets&&!this.can_move_to({size_x:c.size_x,size_y:c.size_y},c.col,c.row)&&(a.extend(c,this.next_position(c.size_x,c.size_y)),b.attr({"data-col":c.col,"data-row":c.row,"data-sizex":c.size_x,"data-sizey":c.size_y})),b.data("coords",b.coords()),b.data("coords").grid=c,this.add_to_gridmap(c,b),this.options.resize.enabled&&this.add_resize_handle(b),this},f.update_widget_position=function(a,b){return this.for_each_cell_occupied(a,function(a,c){return this.gridmap[a]?(this.gridmap[a][c]=b,void 0):this}),this},f.remove_from_gridmap=function(a){return this.update_widget_position(a,!1)},f.add_to_gridmap=function(b,c){if(this.update_widget_position(b,c||b.el),b.el){var d=this.widgets_below(b.el);d.each(a.proxy(function(b,c){this.move_widget_up(a(c))},this))}},f.draggable=function(){var b=this,c=a.extend(!0,{},this.options.draggable,{offset_left:this.options.widget_margins[0],container_width:this.container_width,ignore_dragging:["INPUT","TEXTAREA","SELECT","BUTTON","."+this.options.resize.handle_class],start:function(c,d){b.$widgets.filter(".player-revert").removeClass("player-revert"),b.$player=a(this),b.$helper=a(d.$helper),b.helper=!b.$helper.is(b.$player),b.on_start_drag.call(b,c,d),b.$el.trigger("gridster:dragstart")},stop:function(a,c){b.on_stop_drag.call(b,a,c),b.$el.trigger("gridster:dragstop")},drag:throttle(function(a,c){b.on_drag.call(b,a,c),b.$el.trigger("gridster:drag")},60)});return this.drag_api=this.$el.drag(c),this},f.resizable=function(){return this.resize_api=this.$el.drag({items:"."+this.options.resize.handle_class,offset_left:this.options.widget_margins[0],container_width:this.container_width,move_element:!1,start:a.proxy(this.on_start_resize,this),stop:a.proxy(function(b,c){delay(a.proxy(function(){this.on_stop_resize(b,c)},this),120)},this),drag:throttle(a.proxy(this.on_resize,this),60)}),this},f.setup_resize=function(){this.resize_handle_class=this.options.resize.handle_class;var b=this.options.resize.axes,c='<span class="'+this.resize_handle_class+" "+this.resize_handle_class+'-{type}" />';return this.resize_handle_tpl=a.map(b,function(a){return c.replace("{type}",a)}).join(""),this},f.on_start_drag=function(b,c){this.$helper.add(this.$player).add(this.$wrapper).addClass("dragging"),this.$player.addClass("player"),this.player_grid_data=this.$player.coords().grid,this.placeholder_grid_data=a.extend({},this.player_grid_data),this.$el.css("height",this.$el.height()+this.player_grid_data.size_y*this.min_widget_height);var d=this.faux_grid,e=this.$player.data("coords").coords;this.cells_occupied_by_player=this.get_cells_occupied(this.player_grid_data),this.cells_occupied_by_placeholder=this.get_cells_occupied(this.placeholder_grid_data),this.last_cols=[],this.last_rows=[],this.collision_api=this.$helper.collision(d,this.options.collision),this.$preview_holder=a("<"+this.$player.get(0).tagName+" />",{"class":"preview-holder","data-row":this.$player.attr("data-row"),"data-col":this.$player.attr("data-col"),css:{width:e.width,height:e.height}}).appendTo(this.$el),this.options.draggable.start&&this.options.draggable.start.call(this,b,c)},f.on_drag=function(a,b){if(null===this.$player)return!1;var c={left:b.position.left+this.baseX,top:b.position.top+this.baseY};this.colliders_data=this.collision_api.get_closest_colliders(c),this.on_overlapped_column_change(this.on_start_overlapping_column,this.on_stop_overlapping_column),this.on_overlapped_row_change(this.on_start_overlapping_row,this.on_stop_overlapping_row),this.helper&&this.$player&&this.$player.css({left:b.position.left,top:b.position.top}),this.options.draggable.drag&&this.options.draggable.drag.call(this,a,b)},f.on_stop_drag=function(a,b){this.$helper.add(this.$player).add(this.$wrapper).removeClass("dragging"),b.position.left=b.position.left+this.baseX,b.position.top=b.position.top+this.baseY,this.colliders_data=this.collision_api.get_closest_colliders(b.position),this.on_overlapped_column_change(this.on_start_overlapping_column,this.on_stop_overlapping_column),this.on_overlapped_row_change(this.on_start_overlapping_row,this.on_stop_overlapping_row),this.$player.addClass("player-revert").removeClass("player").attr({"data-col":this.placeholder_grid_data.col,"data-row":this.placeholder_grid_data.row}).css({left:"",top:""}),this.$changed=this.$changed.add(this.$player),this.cells_occupied_by_player=this.get_cells_occupied(this.placeholder_grid_data),this.set_cells_player_occupies(this.placeholder_grid_data.col,this.placeholder_grid_data.row),this.$player.coords().grid.row=this.placeholder_grid_data.row,this.$player.coords().grid.col=this.placeholder_grid_data.col,this.options.draggable.stop&&this.options.draggable.stop.call(this,a,b),this.$preview_holder.remove(),this.$player=null,this.$helper=null,this.placeholder_grid_data={},this.player_grid_data={},this.cells_occupied_by_placeholder={},this.cells_occupied_by_player={},this.set_dom_grid_height()},f.on_start_resize=function(b,c){this.$resized_widget=c.$player.closest(".gs-w"),this.resize_coords=this.$resized_widget.coords(),this.resize_wgd=this.resize_coords.grid,this.resize_initial_width=this.resize_coords.coords.width,this.resize_initial_height=this.resize_coords.coords.height,this.resize_initial_sizex=this.resize_coords.grid.size_x,this.resize_initial_sizey=this.resize_coords.grid.size_y,this.resize_last_sizex=this.resize_initial_sizex,this.resize_last_sizey=this.resize_initial_sizey,this.resize_max_size_x=Math.min(this.resize_wgd.max_size_x||this.options.resize.max_size[0],this.cols-this.resize_wgd.col+1),this.resize_max_size_y=this.resize_wgd.max_size_y||this.options.resize.max_size[1],this.resize_dir={right:c.$player.is("."+this.resize_handle_class+"-x"),bottom:c.$player.is("."+this.resize_handle_class+"-y")},this.$resized_widget.css({"min-width":this.options.widget_base_dimensions[0],"min-height":this.options.widget_base_dimensions[1]});var d=this.$resized_widget.get(0).tagName;this.$resize_preview_holder=a("<"+d+" />",{"class":"preview-holder resize-preview-holder","data-row":this.$resized_widget.attr("data-row"),"data-col":this.$resized_widget.attr("data-col"),css:{width:this.resize_initial_width,height:this.resize_initial_height}}).appendTo(this.$el),this.$resized_widget.addClass("resizing"),this.options.resize.start&&this.options.resize.start.call(this,b,c,this.$resized_widget)},f.on_stop_resize=function(b,c){this.$resized_widget.removeClass("resizing").css({width:"",height:""}),delay(a.proxy(function(){this.$resize_preview_holder.remove().css({"min-width":"","min-height":""})},this),300),this.options.resize.stop&&this.options.resize.stop.call(this,b,c,this.$resized_widget)},f.on_resize=function(a,b){var c=b.pointer.diff_left,d=b.pointer.diff_top,e=this.options.widget_base_dimensions[0],f=this.options.widget_base_dimensions[1],g=1/0,h=1/0,i=Math.ceil(c/(this.options.widget_base_dimensions[0]+2*this.options.widget_margins[0])-.2),j=Math.ceil(d/(this.options.widget_base_dimensions[1]+2*this.options.widget_margins[1])-.2),k=Math.max(1,this.resize_initial_sizex+i),l=Math.max(1,this.resize_initial_sizey+j);k=Math.min(k,this.resize_max_size_x),g=this.resize_max_size_x*e+2*(k-1)*this.options.widget_margins[0],l=Math.min(l,this.resize_max_size_y),h=this.resize_max_size_y*f+2*(l-1)*this.options.widget_margins[1],this.resize_dir.right?l=this.resize_initial_sizey:this.resize_dir.bottom&&(k=this.resize_initial_sizex);var m={};!this.resize_dir.bottom&&(m.width=Math.min(this.resize_initial_width+c,g)),!this.resize_dir.right&&(m.height=Math.min(this.resize_initial_height+d,h)),this.$resized_widget.css(m),(k!==this.resize_last_sizex||l!==this.resize_last_sizey)&&(this.resize_widget(this.$resized_widget,k,l,!1),this.$resize_preview_holder.css({width:"",height:""}).attr({"data-row":this.$resized_widget.attr("data-row"),"data-sizex":k,"data-sizey":l})),this.options.resize.resize&&this.options.resize.resize.call(this,a,b,this.$resized_widget),this.resize_last_sizex=k,this.resize_last_sizey=l},f.on_overlapped_column_change=function(b,c){if(!this.colliders_data.length)return this;var d,e=this.get_targeted_columns(this.colliders_data[0].el.data.col),f=this.last_cols.length,g=e.length;for(d=0;g>d;d++)-1===a.inArray(e[d],this.last_cols)&&(b||a.noop).call(this,e[d]);for(d=0;f>d;d++)-1===a.inArray(this.last_cols[d],e)&&(c||a.noop).call(this,this.last_cols[d]);return this.last_cols=e,this},f.on_overlapped_row_change=function(b,c){if(!this.colliders_data.length)return this;var d,e=this.get_targeted_rows(this.colliders_data[0].el.data.row),f=this.last_rows.length,g=e.length;for(d=0;g>d;d++)-1===a.inArray(e[d],this.last_rows)&&(b||a.noop).call(this,e[d]);for(d=0;f>d;d++)-1===a.inArray(this.last_rows[d],e)&&(c||a.noop).call(this,this.last_rows[d]);this.last_rows=e},f.set_player=function(a,b,c){var d=this;c||this.empty_cells_player_occupies();var e=c?{col:a}:d.colliders_data[0].el.data,f=e.col,g=b||e.row;this.player_grid_data={col:f,row:g,size_y:this.player_grid_data.size_y,size_x:this.player_grid_data.size_x},this.cells_occupied_by_player=this.get_cells_occupied(this.player_grid_data);var h=this.get_widgets_overlapped(this.player_grid_data),i=this.widgets_constraints(h);if(this.manage_movements(i.can_go_up,f,g),this.manage_movements(i.can_not_go_up,f,g),!h.length){var j=this.can_go_player_up(this.player_grid_data);j!==!1&&(g=j),this.set_placeholder(f,g)}return{col:f,row:g}},f.widgets_constraints=function(b){var c,d=a([]),e=[],f=[];return b.each(a.proxy(function(b,c){var g=a(c),h=g.coords().grid;this.can_go_widget_up(h)?(d=d.add(g),e.push(h)):f.push(h)},this)),c=b.not(d),{can_go_up:this.sort_by_row_asc(e),can_not_go_up:this.sort_by_row_desc(f)}},f.sort_by_row_asc=function(b){return b=b.sort(function(b,c){return b.row||(b=a(b).coords().grid,c=a(c).coords().grid),b.row>c.row?1:-1})},f.sort_by_row_and_col_asc=function(a){return a=a.sort(function(a,b){return a.row>b.row||a.row===b.row&&a.col>b.col?1:-1})},f.sort_by_col_asc=function(a){return a=a.sort(function(a,b){return a.col>b.col?1:-1})},f.sort_by_row_desc=function(a){return a=a.sort(function(a,b){return a.row+a.size_y<b.row+b.size_y?1:-1})},f.manage_movements=function(b,c,d){return a.each(b,a.proxy(function(a,b){var e=b,f=e.el,g=this.can_go_widget_up(e);if(g)this.move_widget_to(f,g),this.set_placeholder(c,g+e.size_y);else{var h=this.can_go_player_up(this.player_grid_data);if(!h){var i=d+this.player_grid_data.size_y-e.row;this.move_widget_down(f,i),this.set_placeholder(c,d)}}},this)),this},f.is_player=function(a,b){if(b&&!this.gridmap[a])return!1;var c=b?this.gridmap[a][b]:a;return c&&(c.is(this.$player)||c.is(this.$helper))},f.is_player_in=function(b,c){var d=this.cells_occupied_by_player||{};return a.inArray(b,d.cols)>=0&&a.inArray(c,d.rows)>=0},f.is_placeholder_in=function(b,c){var d=this.cells_occupied_by_placeholder||{};return this.is_placeholder_in_col(b)&&a.inArray(c,d.rows)>=0},f.is_placeholder_in_col=function(b){var c=this.cells_occupied_by_placeholder||[];return a.inArray(b,c.cols)>=0},f.is_empty=function(a,b){return"undefined"!=typeof this.gridmap[a]?"undefined"!=typeof this.gridmap[a][b]&&this.gridmap[a][b]===!1?!0:!1:!0},f.is_occupied=function(a,b){return this.gridmap[a]?this.gridmap[a][b]?!0:!1:!1},f.is_widget=function(a,b){var c=this.gridmap[a];return c?(c=c[b],c?c:!1):!1},f.is_widget_under_player=function(a,b){return this.is_widget(a,b)?this.is_player_in(a,b):!1},f.get_widgets_under_player=function(b){b||(b=this.cells_occupied_by_player||{cols:[],rows:[]});var c=a([]);return a.each(b.cols,a.proxy(function(d,e){a.each(b.rows,a.proxy(function(a,b){this.is_widget(e,b)&&(c=c.add(this.gridmap[e][b]))},this))},this)),c},f.set_placeholder=function(b,c){var d=a.extend({},this.placeholder_grid_data),e=this.widgets_below({col:d.col,row:d.row,size_y:d.size_y,size_x:d.size_x}),f=b+d.size_x-1;f>this.cols&&(b-=f-b);var g=this.placeholder_grid_data.row<c,h=this.placeholder_grid_data.col!==b;this.placeholder_grid_data.col=b,this.placeholder_grid_data.row=c,this.cells_occupied_by_placeholder=this.get_cells_occupied(this.placeholder_grid_data),this.$preview_holder.attr({"data-row":c,"data-col":b}),(g||h)&&e.each(a.proxy(function(c,e){this.move_widget_up(a(e),this.placeholder_grid_data.col-b+d.size_y)},this));var i=this.get_widgets_under_player(this.cells_occupied_by_placeholder);i.length&&i.each(a.proxy(function(b,e){var f=a(e);this.move_widget_down(f,c+d.size_y-f.data("coords").grid.row)},this))},f.can_go_player_up=function(a){var b=a.row+a.size_y-1,c=!0,d=[],e=1e4,f=this.get_widgets_under_player();return this.for_each_column_occupied(a,function(a){var g=this.gridmap[a],h=b+1;for(d[a]=[];--h>0&&(this.is_empty(a,h)||this.is_player(a,h)||this.is_widget(a,h)&&g[h].is(f));)d[a].push(h),e=e>h?h:e;return 0===d[a].length?(c=!1,!0):(d[a].sort(function(a,b){return a-b}),void 0)}),c?this.get_valid_rows(a,d,e):!1},f.can_go_widget_up=function(a){var b=a.row+a.size_y-1,c=!0,d=[],e=1e4;return this.for_each_column_occupied(a,function(f){var g=this.gridmap[f];d[f]=[];for(var h=b+1;--h>0&&(!this.is_widget(f,h)||this.is_player_in(f,h)||g[h].is(a.el));)this.is_player(f,h)||this.is_placeholder_in(f,h)||this.is_player_in(f,h)||d[f].push(h),e>h&&(e=h);return 0===d[f].length?(c=!1,!0):(d[f].sort(function(a,b){return a-b}),void 0)}),c?this.get_valid_rows(a,d,e):!1},f.get_valid_rows=function(b,c,d){for(var e=b.row,f=b.row+b.size_y-1,g=b.size_y,h=d-1,i=[];++h<=f;){var j=!0;if(a.each(c,function(b,c){a.isArray(c)&&-1===a.inArray(h,c)&&(j=!1)}),j===!0&&(i.push(h),i.length===g))break}var k=!1;return 1===g?i[0]!==e&&(k=i[0]||!1):i[0]!==e&&(k=this.get_consecutive_numbers_index(i,g)),k},f.get_consecutive_numbers_index=function(a,b){for(var c=a.length,d=[],e=!0,f=-1,g=0;c>g;g++){if(e||a[g]===f+1){if(d.push(g),d.length===b)break;e=!1}else d=[],e=!0;f=a[g]}return d.length>=b?a[d[0]]:!1},f.get_widgets_overlapped=function(){var b=a([]),c=[],d=this.cells_occupied_by_player.rows.slice(0);return d.reverse(),a.each(this.cells_occupied_by_player.cols,a.proxy(function(e,f){a.each(d,a.proxy(function(d,e){if(!this.gridmap[f])return!0;var g=this.gridmap[f][e];this.is_occupied(f,e)&&!this.is_player(g)&&-1===a.inArray(g,c)&&(b=b.add(g),c.push(g))},this))},this)),b},f.on_start_overlapping_column=function(a){this.set_player(a,!1)},f.on_start_overlapping_row=function(a){this.set_player(!1,a)},f.on_stop_overlapping_column=function(a){this.set_player(a,!1);var b=this;this.for_each_widget_below(a,this.cells_occupied_by_player.rows[0],function(){b.move_widget_up(this,b.player_grid_data.size_y)})},f.on_stop_overlapping_row=function(a){this.set_player(!1,a);for(var b=this,c=this.cells_occupied_by_player.cols,d=0,e=c.length;e>d;d++)this.for_each_widget_below(c[d],a,function(){b.move_widget_up(this,b.player_grid_data.size_y)})},f.move_widget_to=function(b,c){var d=this,e=b.coords().grid;c-e.row;var f=this.widgets_below(b),g=this.can_move_to(e,e.col,c,b);return g===!1?!1:(this.remove_from_gridmap(e),e.row=c,this.add_to_gridmap(e),b.attr("data-row",c),this.$changed=this.$changed.add(b),f.each(function(b,c){var e=a(c),f=e.coords().grid,g=d.can_go_widget_up(f);g&&g!==f.row&&d.move_widget_to(e,g)}),this)},f.move_widget_up=function(b,c){var d=b.coords().grid,e=d.row,f=[];return c||(c=1),this.can_go_up(b)?(this.for_each_column_occupied(d,function(d){if(-1===a.inArray(b,f)){var g=b.coords().grid,h=e-c;if(h=this.can_go_up_to_row(g,d,h),!h)return!0;var i=this.widgets_below(b);this.remove_from_gridmap(g),g.row=h,this.add_to_gridmap(g),b.attr("data-row",g.row),this.$changed=this.$changed.add(b),f.push(b),i.each(a.proxy(function(b,d){this.move_widget_up(a(d),c)},this))}}),void 0):!1},f.move_widget_down=function(b,c){var d,e,f,g;if(0>=c)return!1;if(d=b.coords().grid,e=d.row,f=[],g=c,!b)return!1;if(-1===a.inArray(b,f)){var h=b.coords().grid,i=e+c,j=this.widgets_below(b);this.remove_from_gridmap(h),j.each(a.proxy(function(b,c){var d=a(c),e=d.coords().grid,f=this.displacement_diff(e,h,g);f>0&&this.move_widget_down(d,f)},this)),h.row=i,this.update_widget_position(h,b),b.attr("data-row",h.row),this.$changed=this.$changed.add(b),f.push(b)}},f.can_go_up_to_row=function(b,c,d){var e,f=this.gridmap,g=!0,h=[],i=b.row;if(this.for_each_column_occupied(b,function(a){for(f[a],h[a]=[],e=i;e--&&this.is_empty(a,e)&&!this.is_placeholder_in(a,e);)h[a].push(e);return h[a].length?void 0:(g=!1,!0)}),!g)return!1;for(e=d,e=1;i>e;e++){for(var j=!0,k=0,l=h.length;l>k;k++)h[k]&&-1===a.inArray(e,h[k])&&(j=!1);if(j===!0){g=e;break}}return g},f.displacement_diff=function(a,b,c){var d=a.row,e=[],f=b.row+b.size_y;this.for_each_column_occupied(a,function(a){for(var b=0,c=f;d>c;c++)this.is_empty(a,c)&&(b+=1);e.push(b)});var g=Math.max.apply(Math,e);return c-=g,c>0?c:0},f.widgets_below=function(b){var c=a.isPlainObject(b)?b:b.coords().grid,d=this;this.gridmap;var e=c.row+c.size_y-1,f=a([]);return this.for_each_column_occupied(c,function(b){d.for_each_widget_below(b,e,function(){return d.is_player(this)||-1!==a.inArray(this,f)?void 0:(f=f.add(this),!0)})}),this.sort_by_row_asc(f)},f.set_cells_player_occupies=function(a,b){return this.remove_from_gridmap(this.placeholder_grid_data),this.placeholder_grid_data.col=a,this.placeholder_grid_data.row=b,this.add_to_gridmap(this.placeholder_grid_data,this.$player),this},f.empty_cells_player_occupies=function(){return this.remove_from_gridmap(this.placeholder_grid_data),this
-},f.can_go_up=function(a){var b=a.coords().grid,c=b.row,d=c-1;this.gridmap;var e=!0;return 1===c?!1:(this.for_each_column_occupied(b,function(a){return this.is_widget(a,d),this.is_occupied(a,d)||this.is_player(a,d)||this.is_placeholder_in(a,d)||this.is_player_in(a,d)?(e=!1,!0):void 0}),e)},f.can_move_to=function(a,b,c,d){this.gridmap;var e=a.el,f={size_y:a.size_y,size_x:a.size_x,col:b,row:c},g=!0,h=b+a.size_x-1;return h>this.cols?!1:d&&d<c+a.size_y-1?!1:(this.for_each_cell_occupied(f,function(b,c){var d=this.is_widget(b,c);!d||a.el&&!d.is(e)||(g=!1)}),g)},f.get_targeted_columns=function(a){for(var b=(a||this.player_grid_data.col)+(this.player_grid_data.size_x-1),c=[],d=a;b>=d;d++)c.push(d);return c},f.get_targeted_rows=function(a){for(var b=(a||this.player_grid_data.row)+(this.player_grid_data.size_y-1),c=[],d=a;b>=d;d++)c.push(d);return c},f.get_cells_occupied=function(a){var b,c={cols:[],rows:[]};for(arguments[1]instanceof jQuery&&(a=arguments[1].coords().grid),b=0;b<a.size_x;b++){var d=a.col+b;c.cols.push(d)}for(b=0;b<a.size_y;b++){var e=a.row+b;c.rows.push(e)}return c},f.for_each_cell_occupied=function(a,b){return this.for_each_column_occupied(a,function(c){this.for_each_row_occupied(a,function(a){b.call(this,c,a)})}),this},f.for_each_column_occupied=function(a,b){for(var c=0;c<a.size_x;c++){var d=a.col+c;b.call(this,d,a)}},f.for_each_row_occupied=function(a,b){for(var c=0;c<a.size_y;c++){var d=a.row+c;b.call(this,d,a)}},f._traversing_widgets=function(b,c,d,e,f){var g=this.gridmap;if(g[d]){var h,i,j=b+"/"+c;if(arguments[2]instanceof jQuery){var k=arguments[2].coords().grid;d=k.col,e=k.row,f=arguments[3]}var l=[],m=e,n={"for_each/above":function(){for(;m--&&!(m>0&&this.is_widget(d,m)&&-1===a.inArray(g[d][m],l)&&(h=f.call(g[d][m],d,m),l.push(g[d][m]),h)););},"for_each/below":function(){for(m=e+1,i=g[d].length;i>m&&(!this.is_widget(d,m)||-1!==a.inArray(g[d][m],l)||(h=f.call(g[d][m],d,m),l.push(g[d][m]),!h));m++);}};n[j]&&n[j].call(this)}},f.for_each_widget_above=function(a,b,c){return this._traversing_widgets("for_each","above",a,b,c),this},f.for_each_widget_below=function(a,b,c){return this._traversing_widgets("for_each","below",a,b,c),this},f.get_highest_occupied_cell=function(){for(var a,b=this.gridmap,c=[],d=[],e=b.length-1;e>=1;e--)for(a=b[e].length-1;a>=1;a--)if(this.is_widget(e,a)){c.push(a),d[a]=e;break}var f=Math.max.apply(Math,c);return this.highest_occupied_cell={col:d[f],row:f},this.highest_occupied_cell},f.get_widgets_from=function(b,c){this.gridmap;var d=a();return b&&(d=d.add(this.$widgets.filter(function(){var c=a(this).attr("data-col");return c===b||c>b}))),c&&(d=d.add(this.$widgets.filter(function(){var b=a(this).attr("data-row");return b===c||b>c}))),d},f.set_dom_grid_height=function(){var a=this.get_highest_occupied_cell().row;return this.$el.css("height",a*this.min_widget_height),this},f.generate_stylesheet=function(b){var c,e="",f=this.options.max_size_x||this.cols;b||(b={}),b.cols||(b.cols=this.cols),b.rows||(b.rows=this.rows),b.namespace||(b.namespace=this.options.namespace),b.widget_base_dimensions||(b.widget_base_dimensions=this.options.widget_base_dimensions),b.widget_margins||(b.widget_margins=this.options.widget_margins),b.min_widget_width=2*b.widget_margins[0]+b.widget_base_dimensions[0],b.min_widget_height=2*b.widget_margins[1]+b.widget_base_dimensions[1];var g=a.param(b);if(a.inArray(g,d.generated_stylesheets)>=0)return!1;for(d.generated_stylesheets.push(g),c=b.cols;c>=0;c--)e+=b.namespace+' [data-col="'+(c+1)+'"] { left:'+(c*b.widget_base_dimensions[0]+c*b.widget_margins[0]+(c+1)*b.widget_margins[0])+"px; }\n";for(c=b.rows;c>=0;c--)e+=b.namespace+' [data-row="'+(c+1)+'"] { top:'+(c*b.widget_base_dimensions[1]+c*b.widget_margins[1]+(c+1)*b.widget_margins[1])+"px; }\n";for(var h=1;h<=b.rows;h++)e+=b.namespace+' [data-sizey="'+h+'"] { height:'+(h*b.widget_base_dimensions[1]+(h-1)*2*b.widget_margins[1])+"px; }\n";for(var i=1;f>=i;i++)e+=b.namespace+' [data-sizex="'+i+'"] { width:'+(i*b.widget_base_dimensions[0]+(i-1)*2*b.widget_margins[0])+"px; }\n";return this.add_style_tag(e)},f.add_style_tag=function(a){var b=c,d=b.createElement("style");return b.getElementsByTagName("head")[0].appendChild(d),d.setAttribute("type","text/css"),d.styleSheet?d.styleSheet.cssText=a:d.appendChild(c.createTextNode(a)),this.$style_tags=this.$style_tags.add(d),this},f.remove_style_tags=function(){this.$style_tags.remove()},f.generate_faux_grid=function(a,b){this.faux_grid=[],this.gridmap=[];var c,d;for(c=b;c>0;c--)for(this.gridmap[c]=[],d=a;d>0;d--)this.add_faux_cell(d,c);return this},f.add_faux_cell=function(b,c){var d=a({left:this.baseX+(c-1)*this.min_widget_width,top:this.baseY+(b-1)*this.min_widget_height,width:this.min_widget_width,height:this.min_widget_height,col:c,row:b,original_col:c,original_row:b}).coords();return a.isArray(this.gridmap[c])||(this.gridmap[c]=[]),this.gridmap[c][b]=!1,this.faux_grid.push(d),this},f.add_faux_rows=function(a){for(var b=this.rows,c=b+(a||1),d=c;d>b;d--)for(var e=this.cols;e>=1;e--)this.add_faux_cell(d,e);return this.rows=c,this.options.autogenerate_stylesheet&&this.generate_stylesheet(),this},f.add_faux_cols=function(a){for(var b=this.cols,c=b+(a||1),d=b;c>d;d++)for(var e=this.rows;e>=1;e--)this.add_faux_cell(e,d);return this.cols=c,this.options.autogenerate_stylesheet&&this.generate_stylesheet(),this},f.recalculate_faux_grid=function(){var c=this.$wrapper.width();return this.baseX=(a(b).width()-c)/2,this.baseY=this.$wrapper.offset().top,a.each(this.faux_grid,a.proxy(function(a,b){this.faux_grid[a]=b.update({left:this.baseX+(b.data.col-1)*this.min_widget_width,top:this.baseY+(b.data.row-1)*this.min_widget_height})},this)),this},f.get_widgets_from_DOM=function(){return this.$widgets.each(a.proxy(function(b,c){this.register_widget(a(c))},this)),this},f.generate_grid_and_stylesheet=function(){var c=this.$wrapper.width();this.$wrapper.height();var d=this.options.max_cols,e=Math.floor(c/this.min_widget_width)+this.options.extra_cols,f=this.$widgets.map(function(){return a(this).attr("data-col")}).get();f.length||(f=[0]);var g=Math.max.apply(Math,f),h=this.options.extra_rows;return this.$widgets.each(function(b,c){h+=+a(c).attr("data-sizey")}),this.cols=Math.max(g,e,this.options.min_cols),d&&d>=g&&d<this.cols&&(this.cols=d),this.rows=Math.max(h,this.options.min_rows),this.baseX=(a(b).width()-c)/2,this.baseY=this.$wrapper.offset().top,this.container_width=this.cols*this.options.widget_base_dimensions[0]+2*(this.cols-1)*this.options.widget_margins[0],this.options.autogenerate_stylesheet&&this.generate_stylesheet(),this.generate_faux_grid(this.rows,this.cols)},f.destroy=function(){return a(b).unbind(".gridster"),this.drag_api&&this.drag_api.destroy(),this.remove_style_tags(),this.$el.remove(),this},a.fn.gridster=function(b){return this.each(function(){a(this).data("gridster")||a(this).data("gridster",new d(this,b))})},a.Gridster=f}(jQuery,window,document),function(a){var b=a.Gridster;b.widgets_in_col=function(a){if(!this.gridmap[a])return!1;for(var b=this.gridmap[a].length-1;b>=0;b--)if(this.is_widget(a,b)!==!1)return!0;return!1},b.widgets_in_row=function(a){for(var b=this.gridmap.length;b>=1;b--)if(this.is_widget(b,a)!==!1)return!0;return!1},b.widgets_in_range=function(b,c,d,e){var f,g,h,i,j=a([]);for(f=d;f>=b;f--)for(g=e;g>=c;g--)h=this.is_widget(f,g),h!==!1&&(i=h.data("coords").grid,i.col>=b&&i.col<=d&&i.row>=c&&i.row<=e&&(j=j.add(h)));return j},b.get_bottom_most_occupied_cell=function(){var a=0,b=0;return this.for_each_cell(function(c,d,e){c&&e>a&&(a=e,b=d)}),{col:b,row:a}},b.get_right_most_occupied_cell=function(){var a=0,b=0;return this.for_each_cell(function(c,d,e){return c?(a=e,b=d,!1):void 0}),{col:b,row:a}},b.for_each_cell=function(a,b){b||(b=this.gridmap);var c=b.length,d=b[1].length;a:for(var e=c-1;e>=1;e--)for(var f=d-1;f>=1;f--){var g=b[e]&&b[e][f];if(a){if(a.call(this,g,e,f)===!1)break a}else;}},b.next_position_in_range=function(a,b,c){a||(a=1),b||(b=1);for(var d,e=this.gridmap,f=e.length,g=[],h=1;f>h;h++){d=c||e[h].length;for(var i=1;d>=i;i++){var j=this.can_move_to({size_x:a,size_y:b},h,i,c);j&&g.push({col:h,row:i,size_y:b,size_x:a})}}return g.length>=1?this.sort_by_col_asc(g)[0]:!1},b.closest_to_right=function(a,b){if(!this.gridmap[a])return!1;for(var c=this.gridmap.length-1,d=a;c>=d;d++)if(this.gridmap[d][b])return{col:d,row:b};return!1},b.closest_to_left=function(a,b){if(this.gridmap.length-1,!this.gridmap[a])return!1;for(var c=a;c>=1;c--)if(this.gridmap[c][b])return{col:c,row:b};return!1}}(jQuery,window,document);
\ No newline at end of file
+/*! gridster.js - v0.3.0 - 2013-11-19 - * http://gridster.net/ - Copyright (c) 2013 ducksboard; Licensed MIT */ (function(t){function i(i){return i[0]&&t.isPlainObject(i[0])?this.data=i[0]:this.el=i,this.isCoords=!0,this.coords={},this.init(),this}var e=i.prototype;e.init=function(){this.set(),this.original_coords=this.get()},e.set=function(t,i){var e=this.el;if(e&&!t&&(this.data=e.offset(),this.data.width=e.width(),this.data.height=e.height()),e&&t&&!i){var s=e.offset();this.data.top=s.top,this.data.left=s.left}var r=this.data;return this.coords.x1=r.left,this.coords.y1=r.top,this.coords.x2=r.left+r.width,this.coords.y2=r.top+r.height,this.coords.cx=r.left+r.width/2,this.coords.cy=r.top+r.height/2,this.coords.width=r.width,this.coords.height=r.height,this.coords.el=e||!1,this},e.update=function(i){if(!i&&!this.el)return this;if(i){var e=t.extend({},this.data,i);return this.data=e,this.set(!0,!0)}return this.set(!0),this},e.get=function(){return this.coords},t.fn.coords=function(){if(this.data("coords"))return this.data("coords");var t=new i(this,arguments[0]);return this.data("coords",t),t}})(jQuery,window,document),function(t,i,e){function s(i,e,s){this.options=t.extend(r,s),this.$element=i,this.last_colliders=[],this.last_colliders_coords=[],"string"==typeof e||e instanceof t?this.$colliders=t(e,this.options.colliders_context).not(this.$element):this.colliders=t(e),this.init()}var r={colliders_context:e.body},o=s.prototype;o.init=function(){this.find_collisions()},o.overlaps=function(t,i){var e=!1,s=!1;return(i.x1>=t.x1&&i.x1<=t.x2||i.x2>=t.x1&&i.x2<=t.x2||t.x1>=i.x1&&t.x2<=i.x2)&&(e=!0),(i.y1>=t.y1&&i.y1<=t.y2||i.y2>=t.y1&&i.y2<=t.y2||t.y1>=i.y1&&t.y2<=i.y2)&&(s=!0),e&&s},o.detect_overlapping_region=function(t,i){var e="",s="";return t.y1>i.cy&&t.y1<i.y2&&(e="N"),t.y2>i.y1&&t.y2<i.cy&&(e="S"),t.x1>i.cx&&t.x1<i.x2&&(s="W"),t.x2>i.x1&&t.x2<i.cx&&(s="E"),e+s||"C"},o.calculate_overlapped_area_coords=function(i,e){var s=Math.max(i.x1,e.x1),r=Math.max(i.y1,e.y1),o=Math.min(i.x2,e.x2),a=Math.min(i.y2,e.y2);return t({left:s,top:r,width:o-s,height:a-r}).coords().get()},o.calculate_overlapped_area=function(t){return t.width*t.height},o.manage_colliders_start_stop=function(i,e,s){for(var r=this.last_colliders_coords,o=0,a=r.length;a>o;o++)-1===t.inArray(r[o],i)&&e.call(this,r[o]);for(var n=0,h=i.length;h>n;n++)-1===t.inArray(i[n],r)&&s.call(this,i[n])},o.find_collisions=function(i){for(var e=this,s=[],r=[],o=this.colliders||this.$colliders,a=o.length,n=e.$element.coords().update(i||!1).get();a--;){var h=e.$colliders?t(o[a]):o[a],_=h.isCoords?h:h.coords(),d=_.get(),l=e.overlaps(n,d);if(l){var c=e.detect_overlapping_region(n,d);if("C"===c){var 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i),h={start:n?"touchstart.gridster-draggable":"mousedown.gridster-draggable",move:n?"touchmove.gridster-draggable":"mousemove.gridster-draggable",end:n?"touchend.gridster-draggable":"mouseup.gridster-draggable"},_=function(t){return t.charAt(0).toUpperCase()+t.slice(1)},d=s.prototype;d.init=function(){this.calculate_dimensions(),this.$container.css("position","relative"),this.disabled=!1,this.events(),t(i).bind("resize.gridster-draggable",throttle(t.proxy(this.calculate_dimensions,this),200))},d.events=function(){this.$container.on("selectstart.gridster-draggable",t.proxy(this.on_select_start,this)),this.$container.on(h.start,this.options.items,t.proxy(this.drag_handler,this)),this.$body.on(h.end,t.proxy(function(t){this.is_dragging=!1,this.disabled||(this.$body.off(h.move),this.drag_start&&this.on_dragstop(t))},this))},d.get_actual_pos=function(t){var i=t.position();return i},d.get_mouse_pos=function(t){if(n){var i=t.originalEvent;t=i.touches.length?i.touches[0]:i.changedTouches[0]}return{left:t.clientX,top:t.clientY}},d.get_offset=function(t){t.preventDefault();var i=this.get_mouse_pos(t),e=Math.round(i.left-this.mouse_init_pos.left),s=Math.round(i.top-this.mouse_init_pos.top),r=Math.round(this.el_init_offset.left+e-this.baseX+this.scroll_offset_x),o=Math.round(this.el_init_offset.top+s-this.baseY+this.scroll_offset_y);return this.options.limit&&(r>this.player_max_left?r=this.player_max_left:this.player_min_left>r&&(r=this.player_min_left)),{position:{left:r,top:o},pointer:{left:i.left,top:i.top,diff_left:e+this.scroll_offset_x,diff_top:s+this.scroll_offset_y}}},d.get_drag_data=function(t){var i=this.get_offset(t);return i.$player=this.$player,i.$helper=this.helper?this.$helper:this.$player,i},d.set_limits=function(t){return t||(t=this.$container.width()),this.player_max_left=t-this.player_width+-this.options.offset_left,this.options.container_width=t,this},d.scroll_in=function(i,s){var r,n=a[i],h=50,d=30,l="x"===i,c=l?this.window_width:this.window_height,p=l?t(e).width():t(e).height(),g=l?this.$player.width():this.$player.height(),u=o["scroll"+_(n)](),f=u,w=f+c,m=w-h,y=f+h,v=f+s.pointer[n],z=p-c+g;return v>=m&&(r=u+d,z>r&&(o["scroll"+_(n)](r),this["scroll_offset_"+i]+=d)),y>=v&&(r=u-d,r>0&&(o["scroll"+_(n)](r),this["scroll_offset_"+i]-=d)),this},d.manage_scroll=function(t){this.scroll_in("x",t),this.scroll_in("y",t)},d.calculate_dimensions=function(){this.window_height=o.height(),this.window_width=o.width()},d.drag_handler=function(i){if(i.target.nodeName,!this.disabled&&(1===i.which||n)&&!this.ignore_drag(i)){var e=this,s=!0;return this.$player=t(i.currentTarget),this.el_init_pos=this.get_actual_pos(this.$player),this.mouse_init_pos=this.get_mouse_pos(i),this.offsetY=this.mouse_init_pos.top-this.el_init_pos.top,this.$body.on(h.move,function(t){var i=e.get_mouse_pos(t),r=Math.abs(i.left-e.mouse_init_pos.left),o=Math.abs(i.top-e.mouse_init_pos.top);return r>e.options.distance||o>e.options.distance?s?(s=!1,e.on_dragstart.call(e,t),!1):(e.is_dragging===!0&&e.on_dragmove.call(e,t),!1):!1}),n?undefined:!1}},d.on_dragstart=function(t){if(t.preventDefault(),this.is_dragging)return this;this.drag_start=this.is_dragging=!0;var i=this.$container.offset();return this.baseX=Math.round(i.left),this.baseY=Math.round(i.top),this.initial_container_width=this.options.container_width||this.$container.width(),"clone"===this.options.helper?(this.$helper=this.$player.clone().appendTo(this.$container).addClass("helper"),this.helper=!0):this.helper=!1,this.scroll_offset_y=0,this.scroll_offset_x=0,this.el_init_offset=this.$player.offset(),this.player_width=this.$player.width(),this.player_height=this.$player.height(),this.set_limits(this.options.container_width),this.options.start&&this.options.start.call(this.$player,t,this.get_drag_data(t)),!1},d.on_dragmove=function(t){var i=this.get_drag_data(t);this.options.autoscroll&&this.manage_scroll(i),this.options.move_element&&(this.helper?this.$helper:this.$player).css({position:"absolute",left:i.position.left,top:i.position.top});var e=this.last_position||i.position;return i.prev_position=e,this.options.drag&&this.options.drag.call(this.$player,t,i),this.last_position=i.position,!1},d.on_dragstop=function(t){var i=this.get_drag_data(t);return this.drag_start=!1,this.options.stop&&this.options.stop.call(this.$player,t,i),this.helper&&this.$helper.remove(),!1},d.on_select_start=function(t){return this.disabled||this.ignore_drag(t)?undefined:!1},d.enable=function(){this.disabled=!1},d.disable=function(){this.disabled=!0},d.destroy=function(){this.disable(),this.$container.off(".gridster-draggable"),this.$body.off(".gridster-draggable"),t(i).off(".gridster-draggable"),t.removeData(this.$container,"drag")},d.ignore_drag=function(i){return this.options.handle?!t(i.target).is(this.options.handle):t(i.target).is(this.options.ignore_dragging.join(", "))},t.fn.drag=function(t){return new s(this,t)}}(jQuery,window,document),function(t,i,e){function s(i,e){this.options=t.extend(!0,r,e),this.$el=t(i),this.$wrapper=this.$el.parent(),this.$widgets=this.$el.children(this.options.widget_selector).addClass("gs-w"),this.widgets=[],this.$changed=t([]),this.wrapper_width=this.$wrapper.width(),this.min_widget_width=2*this.options.widget_margins[0]+this.options.widget_base_dimensions[0],this.min_widget_height=2*this.options.widget_margins[1]+this.options.widget_base_dimensions[1],this.$style_tags=t([]),this.init()}var r={namespace:"",widget_selector:"li",widget_margins:[10,10],widget_base_dimensions:[400,225],extra_rows:0,extra_cols:0,min_cols:1,max_cols:1/0,min_rows:15,max_size_x:!1,autogrow_cols:!1,autogenerate_stylesheet:!0,avoid_overlapped_widgets:!0,serialize_params:function(t,i){return{col:i.col,row:i.row,size_x:i.size_x,size_y:i.size_y}},collision:{},draggable:{items:".gs-w",distance:4},resize:{enabled:!1,axes:["x","y","both"],handle_append_to:"",handle_class:"gs-resize-handle",max_size:[1/0,1/0]}};s.generated_stylesheets=[];var o=s.prototype;o.init=function(){this.options.resize.enabled&&this.setup_resize(),this.generate_grid_and_stylesheet(),this.get_widgets_from_DOM(),this.set_dom_grid_height(),this.set_dom_grid_width(),this.$wrapper.addClass("ready"),this.draggable(),this.options.resize.enabled&&this.resizable(),t(i).bind("resize.gridster",throttle(t.proxy(this.recalculate_faux_grid,this),200))},o.disable=function(){return this.$wrapper.find(".player-revert").removeClass("player-revert"),this.drag_api.disable(),this},o.enable=function(){return this.drag_api.enable(),this},o.disable_resize=function(){return this.$el.addClass("gs-resize-disabled"),this.resize_api.disable(),this},o.enable_resize=function(){return this.$el.removeClass("gs-resize-disabled"),this.resize_api.enable(),this},o.add_widget=function(i,e,s,r,o,a){var n;e||(e=1),s||(s=1),!r&!o?n=this.next_position(e,s):(n={col:r,row:o},this.empty_cells(r,o,e,s));var h=t(i).attr({"data-col":n.col,"data-row":n.row,"data-sizex":e,"data-sizey":s}).addClass("gs-w").appendTo(this.$el).hide();return this.$widgets=this.$widgets.add(h),this.register_widget(h),this.add_faux_rows(n.size_y),a&&this.set_widget_max_size(h,a),this.set_dom_grid_height(),h.fadeIn()},o.set_widget_max_size=function(t,i){if(t="number"==typeof t?this.$widgets.eq(t):t,!t.length)return this;var e=t.data("coords").grid;return e.max_size_x=i[0],e.max_size_y=i[1],this},o.add_resize_handle=function(i){var e=this.options.resize.handle_append_to;return t(this.resize_handle_tpl).appendTo(e?t(e,i):i),this},o.resize_widget=function(t,i,e,s){var r=t.coords().grid,o=r.col,a=this.options.max_cols,n=r.size_y,h=r.col,_=h;i||(i=r.size_x),e||(e=r.size_y),1/0!==a&&(i=Math.min(i,a-o+1)),e>n&&this.add_faux_rows(Math.max(e-n,0));var d=o+i-1;d>this.cols&&this.add_faux_cols(d-this.cols);var l={col:_,row:r.row,size_x:i,size_y:e};return this.mutate_widget_in_gridmap(t,r,l),this.set_dom_grid_height(),this.set_dom_grid_width(),s&&s.call(this,l.size_x,l.size_y),t},o.mutate_widget_in_gridmap=function(i,e,s){e.size_x;var r=e.size_y,o=this.get_cells_occupied(e),a=this.get_cells_occupied(s),n=[];t.each(o.cols,function(i,e){-1===t.inArray(e,a.cols)&&n.push(e)});var h=[];t.each(a.cols,function(i,e){-1===t.inArray(e,o.cols)&&h.push(e)});var _=[];t.each(o.rows,function(i,e){-1===t.inArray(e,a.rows)&&_.push(e)});var d=[];if(t.each(a.rows,function(i,e){-1===t.inArray(e,o.rows)&&d.push(e)}),this.remove_from_gridmap(e),h.length){var l=[s.col,s.row,s.size_x,Math.min(r,s.size_y),i];this.empty_cells.apply(this,l)}if(d.length){var c=[s.col,s.row,s.size_x,s.size_y,i];this.empty_cells.apply(this,c)}if(e.col=s.col,e.row=s.row,e.size_x=s.size_x,e.size_y=s.size_y,this.add_to_gridmap(s,i),i.removeClass("player-revert"),i.data("coords").update({width:s.size_x*this.options.widget_base_dimensions[0]+2*(s.size_x-1)*this.options.widget_margins[0],height:s.size_y*this.options.widget_base_dimensions[1]+2*(s.size_y-1)*this.options.widget_margins[1]}),i.attr({"data-col":s.col,"data-row":s.row,"data-sizex":s.size_x,"data-sizey":s.size_y}),n.length){var p=[n[0],s.row,n.length,Math.min(r,s.size_y),i];this.remove_empty_cells.apply(this,p)}if(_.length){var g=[s.col,s.row,s.size_x,s.size_y,i];this.remove_empty_cells.apply(this,g)}return this.move_widget_up(i),this},o.empty_cells=function(i,e,s,r,o){var a=this.widgets_below({col:i,row:e-r,size_x:s,size_y:r});return a.not(o).each(t.proxy(function(i,s){var o=t(s).coords().grid;if(e+r-1>=o.row){var a=e+r-o.row;this.move_widget_down(t(s),a)}},this)),this.set_dom_grid_height(),this},o.remove_empty_cells=function(i,e,s,r,o){var a=this.widgets_below({col:i,row:e,size_x:s,size_y:r});return a.not(o).each(t.proxy(function(i,e){this.move_widget_up(t(e),r)},this)),this.set_dom_grid_height(),this},o.next_position=function(t,i){t||(t=1),i||(i=1);for(var e,s=this.gridmap,r=s.length,o=[],a=1;r>a;a++){e=s[a].length;for(var n=1;e>=n;n++){var h=this.can_move_to({size_x:t,size_y:i},a,n);h&&o.push({col:a,row:n,size_y:i,size_x:t})}}return o.length?this.sort_by_row_and_col_asc(o)[0]:!1},o.remove_widget=function(i,e,s){var r=i instanceof t?i:t(i),o=r.coords().grid;t.isFunction(e)&&(s=e,e=!1),this.cells_occupied_by_placeholder={},this.$widgets=this.$widgets.not(r);var a=this.widgets_below(r);return this.remove_from_gridmap(o),r.fadeOut(t.proxy(function(){r.remove(),e||a.each(t.proxy(function(i,e){this.move_widget_up(t(e),o.size_y)},this)),this.set_dom_grid_height(),s&&s.call(this,i)},this)),this},o.remove_all_widgets=function(i){return this.$widgets.each(t.proxy(function(t,e){this.remove_widget(e,!0,i)},this)),this},o.serialize=function(i){i||(i=this.$widgets);var e=[];return i.each(t.proxy(function(i,s){e.push(this.options.serialize_params(t(s),t(s).coords().grid))},this)),e},o.serialize_changed=function(){return this.serialize(this.$changed)},o.register_widget=function(i){var e={col:parseInt(i.attr("data-col"),10),row:parseInt(i.attr("data-row"),10),size_x:parseInt(i.attr("data-sizex"),10),size_y:parseInt(i.attr("data-sizey"),10),max_size_x:parseInt(i.attr("data-max-sizex"),10)||!1,max_size_y:parseInt(i.attr("data-max-sizey"),10)||!1,el:i};return this.options.avoid_overlapped_widgets&&!this.can_move_to({size_x:e.size_x,size_y:e.size_y},e.col,e.row)&&(t.extend(e,this.next_position(e.size_x,e.size_y)),i.attr({"data-col":e.col,"data-row":e.row,"data-sizex":e.size_x,"data-sizey":e.size_y})),i.data("coords",i.coords()),i.data("coords").grid=e,this.add_to_gridmap(e,i),this.options.resize.enabled&&this.add_resize_handle(i),this},o.update_widget_position=function(t,i){return this.for_each_cell_occupied(t,function(t,e){return this.gridmap[t]?(this.gridmap[t][e]=i,undefined):this}),this},o.remove_from_gridmap=function(t){return this.update_widget_position(t,!1)},o.add_to_gridmap=function(i,e){if(this.update_widget_position(i,e||i.el),i.el){var s=this.widgets_below(i.el);s.each(t.proxy(function(i,e){this.move_widget_up(t(e))},this))}},o.draggable=function(){var i=this,e=t.extend(!0,{},this.options.draggable,{offset_left:this.options.widget_margins[0],offset_top:this.options.widget_margins[1],container_width:this.container_width,limit:!0,ignore_dragging:["INPUT","TEXTAREA","SELECT","BUTTON","."+this.options.resize.handle_class],start:function(e,s){i.$widgets.filter(".player-revert").removeClass("player-revert"),i.$player=t(this),i.$helper=t(s.$helper),i.helper=!i.$helper.is(i.$player),i.on_start_drag.call(i,e,s),i.$el.trigger("gridster:dragstart")},stop:function(t,e){i.on_stop_drag.call(i,t,e),i.$el.trigger("gridster:dragstop")},drag:throttle(function(t,e){i.on_drag.call(i,t,e),i.$el.trigger("gridster:drag")},60)});return this.drag_api=this.$el.drag(e),this},o.resizable=function(){return this.resize_api=this.$el.drag({items:"."+this.options.resize.handle_class,offset_left:this.options.widget_margins[0],container_width:this.container_width,move_element:!1,resize:!0,limit:this.options.autogrow_cols?!1:!0,start:t.proxy(this.on_start_resize,this),stop:t.proxy(function(i,e){delay(t.proxy(function(){this.on_stop_resize(i,e)},this),120)},this),drag:throttle(t.proxy(this.on_resize,this),60)}),this},o.setup_resize=function(){this.resize_handle_class=this.options.resize.handle_class;var i=this.options.resize.axes,e='<span class="'+this.resize_handle_class+" "+this.resize_handle_class+'-{type}" />';return this.resize_handle_tpl=t.map(i,function(t){return e.replace("{type}",t)}).join(""),this},o.on_start_drag=function(i,e){this.$helper.add(this.$player).add(this.$wrapper).addClass("dragging"),this.highest_col=this.get_highest_occupied_cell().col,this.$player.addClass("player"),this.player_grid_data=this.$player.coords().grid,this.placeholder_grid_data=t.extend({},this.player_grid_data),this.set_dom_grid_height(this.$el.height()+this.player_grid_data.size_y*this.min_widget_height),this.set_dom_grid_width(this.highest_col+1);var s=this.cols-this.highest_col;this.player_grid_data.size_x>s&&this.add_faux_cols(this.player_grid_data.size_x-s);var r=this.faux_grid,o=this.$player.data("coords").coords;this.cells_occupied_by_player=this.get_cells_occupied(this.player_grid_data),this.cells_occupied_by_placeholder=this.get_cells_occupied(this.placeholder_grid_data),this.last_cols=[],this.last_rows=[],this.collision_api=this.$helper.collision(r,this.options.collision),this.$preview_holder=t("<"+this.$player.get(0).tagName+" />",{"class":"preview-holder","data-row":this.$player.attr("data-row"),"data-col":this.$player.attr("data-col"),css:{width:o.width,height:o.height}}).appendTo(this.$el),this.options.draggable.start&&this.options.draggable.start.call(this,i,e)},o.on_drag=function(t,i){if(null===this.$player)return!1;var e={left:i.position.left+this.baseX,top:i.position.top+this.baseY};if(this.colliders_data=this.collision_api.get_closest_colliders(e),this.on_overlapped_column_change(this.on_start_overlapping_column,this.on_stop_overlapping_column),this.on_overlapped_row_change(this.on_start_overlapping_row,this.on_stop_overlapping_row),this.options.autogrow_cols){var s=this.placeholder_grid_data.col+this.placeholder_grid_data.size_x-1;s===this.highest_col&&(this.cols>s&&this.set_dom_grid_width(s+1),this.highest_col=s+1,this.drag_api.set_limits(this.container_width))}this.helper&&this.$player&&this.$player.css({left:i.position.left,top:i.position.top}),this.options.draggable.drag&&this.options.draggable.drag.call(this,t,i)},o.on_stop_drag=function(t,i){this.$helper.add(this.$player).add(this.$wrapper).removeClass("dragging"),i.position.left=i.position.left+this.baseX,i.position.top=i.position.top+this.baseY,this.colliders_data=this.collision_api.get_closest_colliders(i.position),this.on_overlapped_column_change(this.on_start_overlapping_column,this.on_stop_overlapping_column),this.on_overlapped_row_change(this.on_start_overlapping_row,this.on_stop_overlapping_row),this.$player.addClass("player-revert").removeClass("player").attr({"data-col":this.placeholder_grid_data.col,"data-row":this.placeholder_grid_data.row}).css({left:"",top:""}),this.$changed=this.$changed.add(this.$player),this.cells_occupied_by_player=this.get_cells_occupied(this.placeholder_grid_data),this.set_cells_player_occupies(this.placeholder_grid_data.col,this.placeholder_grid_data.row),this.$player.coords().grid.row=this.placeholder_grid_data.row,this.$player.coords().grid.col=this.placeholder_grid_data.col,this.options.draggable.stop&&this.options.draggable.stop.call(this,t,i),this.$preview_holder.remove(),this.$player=null,this.$helper=null,this.placeholder_grid_data={},this.player_grid_data={},this.cells_occupied_by_placeholder={},this.cells_occupied_by_player={},this.set_dom_grid_height(),this.set_dom_grid_width(),this.options.autogrow_cols&&this.drag_api.set_limits(this.container_width)},o.on_start_resize=function(i,e){this.$resized_widget=e.$player.closest(".gs-w"),this.resize_coords=this.$resized_widget.coords(),this.resize_wgd=this.resize_coords.grid,this.resize_initial_width=this.resize_coords.coords.width,this.resize_initial_height=this.resize_coords.coords.height,this.resize_initial_sizex=this.resize_coords.grid.size_x,this.resize_initial_sizey=this.resize_coords.grid.size_y,this.resize_initial_col=this.resize_coords.grid.col,this.resize_last_sizex=this.resize_initial_sizex,this.resize_last_sizey=this.resize_initial_sizey,this.resize_max_size_x=Math.min(this.resize_wgd.max_size_x||this.options.resize.max_size[0],this.options.max_cols-this.resize_initial_col+1),this.resize_max_size_y=this.resize_wgd.max_size_y||this.options.resize.max_size[1],this.resize_initial_last_col=this.get_highest_occupied_cell().col,this.resize_dir={right:e.$player.is("."+this.resize_handle_class+"-x"),bottom:e.$player.is("."+this.resize_handle_class+"-y")},this.$resized_widget.css({"min-width":this.options.widget_base_dimensions[0],"min-height":this.options.widget_base_dimensions[1]});var s=this.$resized_widget.get(0).tagName;this.$resize_preview_holder=t("<"+s+" />",{"class":"preview-holder resize-preview-holder","data-row":this.$resized_widget.attr("data-row"),"data-col":this.$resized_widget.attr("data-col"),css:{width:this.resize_initial_width,height:this.resize_initial_height}}).appendTo(this.$el),this.$resized_widget.addClass("resizing"),this.options.resize.start&&this.options.resize.start.call(this,i,e,this.$resized_widget)},o.on_stop_resize=function(i,e){this.$resized_widget.removeClass("resizing").css({width:"",height:""}),delay(t.proxy(function(){this.$resize_preview_holder.remove().css({"min-width":"","min-height":""})},this),300),this.set_dom_grid_width(),this.options.autogrow_cols&&this.drag_api.set_limits(this.container_width),this.options.resize.stop&&this.options.resize.stop.call(this,i,e,this.$resized_widget)},o.on_resize=function(t,i){var e=i.pointer.diff_left,s=i.pointer.diff_top,r=this.options.widget_base_dimensions[0],o=this.options.widget_base_dimensions[1],a=1/0,n=1/0,h=Math.ceil(e/(this.options.widget_base_dimensions[0]+2*this.options.widget_margins[0])-.2),_=Math.ceil(s/(this.options.widget_base_dimensions[1]+2*this.options.widget_margins[1])-.2),d=Math.max(1,this.resize_initial_sizex+h),l=Math.max(1,this.resize_initial_sizey+_);if(d=Math.min(d,this.resize_max_size_x),a=this.resize_max_size_x*r+2*(d-1)*this.options.widget_margins[0],l=Math.min(l,this.resize_max_size_y),n=this.resize_max_size_y*o+2*(l-1)*this.options.widget_margins[1],this.resize_dir.right?l=this.resize_initial_sizey:this.resize_dir.bottom&&(d=this.resize_initial_sizex),this.options.autogrow_cols){var c=this.resize_initial_col+d-1;this.options.autogrow_cols&&c>=this.resize_initial_last_col&&(this.set_dom_grid_width(c+1),c>this.cols&&this.add_faux_cols(c-this.cols))}var p={};!this.resize_dir.bottom&&(p.width=Math.min(this.resize_initial_width+e,a)),!this.resize_dir.right&&(p.height=Math.min(this.resize_initial_height+s,n)),this.$resized_widget.css(p),(d!==this.resize_last_sizex||l!==this.resize_last_sizey)&&(this.resize_widget(this.$resized_widget,d,l),this.$resize_preview_holder.css({width:"",height:""}).attr({"data-row":this.$resized_widget.attr("data-row"),"data-sizex":d,"data-sizey":l})),this.options.resize.resize&&this.options.resize.resize.call(this,t,i,this.$resized_widget),this.resize_last_sizex=d,this.resize_last_sizey=l},o.on_overlapped_column_change=function(i,e){if(!this.colliders_data.length)return this;var s,r=this.get_targeted_columns(this.colliders_data[0].el.data.col),o=this.last_cols.length,a=r.length;for(s=0;a>s;s++)-1===t.inArray(r[s],this.last_cols)&&(i||t.noop).call(this,r[s]);for(s=0;o>s;s++)-1===t.inArray(this.last_cols[s],r)&&(e||t.noop).call(this,this.last_cols[s]);return this.last_cols=r,this},o.on_overlapped_row_change=function(i,e){if(!this.colliders_data.length)return this;var s,r=this.get_targeted_rows(this.colliders_data[0].el.data.row),o=this.last_rows.length,a=r.length;for(s=0;a>s;s++)-1===t.inArray(r[s],this.last_rows)&&(i||t.noop).call(this,r[s]);for(s=0;o>s;s++)-1===t.inArray(this.last_rows[s],r)&&(e||t.noop).call(this,this.last_rows[s]);this.last_rows=r},o.set_player=function(t,i,e){var s=this;e||this.empty_cells_player_occupies();var r=e?{col:t}:s.colliders_data[0].el.data,o=r.col,a=i||r.row;this.player_grid_data={col:o,row:a,size_y:this.player_grid_data.size_y,size_x:this.player_grid_data.size_x},this.cells_occupied_by_player=this.get_cells_occupied(this.player_grid_data);var n=this.get_widgets_overlapped(this.player_grid_data),h=this.widgets_constraints(n);if(this.manage_movements(h.can_go_up,o,a),this.manage_movements(h.can_not_go_up,o,a),!n.length){var _=this.can_go_player_up(this.player_grid_data);_!==!1&&(a=_),this.set_placeholder(o,a)}return{col:o,row:a}},o.widgets_constraints=function(i){var e,s=t([]),r=[],o=[];return i.each(t.proxy(function(i,e){var a=t(e),n=a.coords().grid;this.can_go_widget_up(n)?(s=s.add(a),r.push(n)):o.push(n)},this)),e=i.not(s),{can_go_up:this.sort_by_row_asc(r),can_not_go_up:this.sort_by_row_desc(o)}},o.sort_by_row_asc=function(i){return i=i.sort(function(i,e){return i.row||(i=t(i).coords().grid,e=t(e).coords().grid),i.row>e.row?1:-1})},o.sort_by_row_and_col_asc=function(t){return t=t.sort(function(t,i){return t.row>i.row||t.row===i.row&&t.col>i.col?1:-1})},o.sort_by_col_asc=function(t){return t=t.sort(function(t,i){return t.col>i.col?1:-1})},o.sort_by_row_desc=function(t){return t=t.sort(function(t,i){return t.row+t.size_y<i.row+i.size_y?1:-1})},o.manage_movements=function(i,e,s){return t.each(i,t.proxy(function(t,i){var r=i,o=r.el,a=this.can_go_widget_up(r);if(a)this.move_widget_to(o,a),this.set_placeholder(e,a+r.size_y);else{var n=this.can_go_player_up(this.player_grid_data);if(!n){var h=s+this.player_grid_data.size_y-r.row;this.move_widget_down(o,h),this.set_placeholder(e,s)}}},this)),this},o.is_player=function(t,i){if(i&&!this.gridmap[t])return!1;var e=i?this.gridmap[t][i]:t;return e&&(e.is(this.$player)||e.is(this.$helper))},o.is_player_in=function(i,e){var s=this.cells_occupied_by_player||{};return t.inArray(i,s.cols)>=0&&t.inArray(e,s.rows)>=0},o.is_placeholder_in=function(i,e){var s=this.cells_occupied_by_placeholder||{};return this.is_placeholder_in_col(i)&&t.inArray(e,s.rows)>=0},o.is_placeholder_in_col=function(i){var e=this.cells_occupied_by_placeholder||[];return t.inArray(i,e.cols)>=0},o.is_empty=function(t,i){return this.gridmap[t]!==undefined?this.gridmap[t][i]!==undefined&&this.gridmap[t][i]===!1?!0:!1:!0},o.is_occupied=function(t,i){return this.gridmap[t]?this.gridmap[t][i]?!0:!1:!1},o.is_widget=function(t,i){var e=this.gridmap[t];return e?(e=e[i],e?e:!1):!1},o.is_widget_under_player=function(t,i){return this.is_widget(t,i)?this.is_player_in(t,i):!1},o.get_widgets_under_player=function(i){i||(i=this.cells_occupied_by_player||{cols:[],rows:[]});var e=t([]);return t.each(i.cols,t.proxy(function(s,r){t.each(i.rows,t.proxy(function(t,i){this.is_widget(r,i)&&(e=e.add(this.gridmap[r][i]))},this))},this)),e},o.set_placeholder=function(i,e){var s=t.extend({},this.placeholder_grid_data),r=this.widgets_below({col:s.col,row:s.row,size_y:s.size_y,size_x:s.size_x}),o=i+s.size_x-1;o>this.cols&&(i-=o-i);var a=e>this.placeholder_grid_data.row,n=this.placeholder_grid_data.col!==i;this.placeholder_grid_data.col=i,this.placeholder_grid_data.row=e,this.cells_occupied_by_placeholder=this.get_cells_occupied(this.placeholder_grid_data),this.$preview_holder.attr({"data-row":e,"data-col":i}),(a||n)&&r.each(t.proxy(function(e,r){this.move_widget_up(t(r),this.placeholder_grid_data.col-i+s.size_y)},this));var h=this.get_widgets_under_player(this.cells_occupied_by_placeholder);h.length&&h.each(t.proxy(function(i,r){var o=t(r);this.move_widget_down(o,e+s.size_y-o.data("coords").grid.row)},this))},o.can_go_player_up=function(t){var i=t.row+t.size_y-1,e=!0,s=[],r=1e4,o=this.get_widgets_under_player();return this.for_each_column_occupied(t,function(t){var a=this.gridmap[t],n=i+1;for(s[t]=[];--n>0&&(this.is_empty(t,n)||this.is_player(t,n)||this.is_widget(t,n)&&a[n].is(o));)s[t].push(n),r=r>n?n:r;return 0===s[t].length?(e=!1,!0):(s[t].sort(function(t,i){return t-i}),undefined)}),e?this.get_valid_rows(t,s,r):!1},o.can_go_widget_up=function(t){var i=t.row+t.size_y-1,e=!0,s=[],r=1e4;return this.for_each_column_occupied(t,function(o){var a=this.gridmap[o];s[o]=[];for(var n=i+1;--n>0&&(!this.is_widget(o,n)||this.is_player_in(o,n)||a[n].is(t.el));)this.is_player(o,n)||this.is_placeholder_in(o,n)||this.is_player_in(o,n)||s[o].push(n),r>n&&(r=n);return 0===s[o].length?(e=!1,!0):(s[o].sort(function(t,i){return t-i}),undefined)}),e?this.get_valid_rows(t,s,r):!1},o.get_valid_rows=function(i,e,s){for(var r=i.row,o=i.row+i.size_y-1,a=i.size_y,n=s-1,h=[];o>=++n;){var _=!0;if(t.each(e,function(i,e){t.isArray(e)&&-1===t.inArray(n,e)&&(_=!1)}),_===!0&&(h.push(n),h.length===a))break}var d=!1;return 1===a?h[0]!==r&&(d=h[0]||!1):h[0]!==r&&(d=this.get_consecutive_numbers_index(h,a)),d},o.get_consecutive_numbers_index=function(t,i){for(var e=t.length,s=[],r=!0,o=-1,a=0;e>a;a++){if(r||t[a]===o+1){if(s.push(a),s.length===i)break;r=!1}else s=[],r=!0;o=t[a]}return s.length>=i?t[s[0]]:!1},o.get_widgets_overlapped=function(){var i=t([]),e=[],s=this.cells_occupied_by_player.rows.slice(0);return s.reverse(),t.each(this.cells_occupied_by_player.cols,t.proxy(function(r,o){t.each(s,t.proxy(function(s,r){if(!this.gridmap[o])return!0;var a=this.gridmap[o][r];this.is_occupied(o,r)&&!this.is_player(a)&&-1===t.inArray(a,e)&&(i=i.add(a),e.push(a))},this))},this)),i},o.on_start_overlapping_column=function(t){this.set_player(t,!1)},o.on_start_overlapping_row=function(t){this.set_player(!1,t)},o.on_stop_overlapping_column=function(t){this.set_player(t,!1);var i=this;this.for_each_widget_below(t,this.cells_occupied_by_player.rows[0],function(){i.move_widget_up(this,i.player_grid_data.size_y)})},o.on_stop_overlapping_row=function(t){this.set_player(!1,t);for(var i=this,e=this.cells_occupied_by_player.cols,s=0,r=e.length;r>s;s++)this.for_each_widget_below(e[s],t,function(){i.move_widget_up(this,i.player_grid_data.size_y)})},o.move_widget_to=function(i,e){var s=this,r=i.coords().grid;e-r.row;var o=this.widgets_below(i),a=this.can_move_to(r,r.col,e,i);return a===!1?!1:(this.remove_from_gridmap(r),r.row=e,this.add_to_gridmap(r),i.attr("data-row",e),this.$changed=this.$changed.add(i),o.each(function(i,e){var r=t(e),o=r.coords().grid,a=s.can_go_widget_up(o);a&&a!==o.row&&s.move_widget_to(r,a)}),this)},o.move_widget_up=function(i,e){var s=i.coords().grid,r=s.row,o=[];return e||(e=1),this.can_go_up(i)?(this.for_each_column_occupied(s,function(s){if(-1===t.inArray(i,o)){var a=i.coords().grid,n=r-e;if(n=this.can_go_up_to_row(a,s,n),!n)return!0;var h=this.widgets_below(i);this.remove_from_gridmap(a),a.row=n,this.add_to_gridmap(a),i.attr("data-row",a.row),this.$changed=this.$changed.add(i),o.push(i),h.each(t.proxy(function(i,s){this.move_widget_up(t(s),e)},this))}}),undefined):!1},o.move_widget_down=function(i,e){var s,r,o,a;
+if(0>=e)return!1;if(s=i.coords().grid,r=s.row,o=[],a=e,!i)return!1;if(-1===t.inArray(i,o)){var n=i.coords().grid,h=r+e,_=this.widgets_below(i);this.remove_from_gridmap(n),_.each(t.proxy(function(i,e){var s=t(e),r=s.coords().grid,o=this.displacement_diff(r,n,a);o>0&&this.move_widget_down(s,o)},this)),n.row=h,this.update_widget_position(n,i),i.attr("data-row",n.row),this.$changed=this.$changed.add(i),o.push(i)}},o.can_go_up_to_row=function(i,e,s){var r,o=this.gridmap,a=!0,n=[],h=i.row;if(this.for_each_column_occupied(i,function(t){for(o[t],n[t]=[],r=h;r--&&this.is_empty(t,r)&&!this.is_placeholder_in(t,r);)n[t].push(r);return n[t].length?undefined:(a=!1,!0)}),!a)return!1;for(r=s,r=1;h>r;r++){for(var _=!0,d=0,l=n.length;l>d;d++)n[d]&&-1===t.inArray(r,n[d])&&(_=!1);if(_===!0){a=r;break}}return a},o.displacement_diff=function(t,i,e){var s=t.row,r=[],o=i.row+i.size_y;this.for_each_column_occupied(t,function(t){for(var i=0,e=o;s>e;e++)this.is_empty(t,e)&&(i+=1);r.push(i)});var a=Math.max.apply(Math,r);return e-=a,e>0?e:0},o.widgets_below=function(i){var e=t.isPlainObject(i)?i:i.coords().grid,s=this;this.gridmap;var r=e.row+e.size_y-1,o=t([]);return this.for_each_column_occupied(e,function(i){s.for_each_widget_below(i,r,function(){return s.is_player(this)||-1!==t.inArray(this,o)?undefined:(o=o.add(this),!0)})}),this.sort_by_row_asc(o)},o.set_cells_player_occupies=function(t,i){return this.remove_from_gridmap(this.placeholder_grid_data),this.placeholder_grid_data.col=t,this.placeholder_grid_data.row=i,this.add_to_gridmap(this.placeholder_grid_data,this.$player),this},o.empty_cells_player_occupies=function(){return this.remove_from_gridmap(this.placeholder_grid_data),this},o.can_go_up=function(t){var i=t.coords().grid,e=i.row,s=e-1;this.gridmap;var r=!0;return 1===e?!1:(this.for_each_column_occupied(i,function(t){return this.is_widget(t,s),this.is_occupied(t,s)||this.is_player(t,s)||this.is_placeholder_in(t,s)||this.is_player_in(t,s)?(r=!1,!0):undefined}),r)},o.can_move_to=function(t,i,e,s){this.gridmap;var r=t.el,o={size_y:t.size_y,size_x:t.size_x,col:i,row:e},a=!0,n=i+t.size_x-1;return n>this.cols?!1:s&&e+t.size_y-1>s?!1:(this.for_each_cell_occupied(o,function(i,e){var s=this.is_widget(i,e);!s||t.el&&!s.is(r)||(a=!1)}),a)},o.get_targeted_columns=function(t){for(var i=(t||this.player_grid_data.col)+(this.player_grid_data.size_x-1),e=[],s=t;i>=s;s++)e.push(s);return e},o.get_targeted_rows=function(t){for(var i=(t||this.player_grid_data.row)+(this.player_grid_data.size_y-1),e=[],s=t;i>=s;s++)e.push(s);return e},o.get_cells_occupied=function(i){var e,s={cols:[],rows:[]};for(arguments[1]instanceof t&&(i=arguments[1].coords().grid),e=0;i.size_x>e;e++){var r=i.col+e;s.cols.push(r)}for(e=0;i.size_y>e;e++){var o=i.row+e;s.rows.push(o)}return s},o.for_each_cell_occupied=function(t,i){return this.for_each_column_occupied(t,function(e){this.for_each_row_occupied(t,function(t){i.call(this,e,t)})}),this},o.for_each_column_occupied=function(t,i){for(var e=0;t.size_x>e;e++){var s=t.col+e;i.call(this,s,t)}},o.for_each_row_occupied=function(t,i){for(var e=0;t.size_y>e;e++){var s=t.row+e;i.call(this,s,t)}},o._traversing_widgets=function(i,e,s,r,o){var a=this.gridmap;if(a[s]){var n,h,_=i+"/"+e;if(arguments[2]instanceof t){var d=arguments[2].coords().grid;s=d.col,r=d.row,o=arguments[3]}var l=[],c=r,p={"for_each/above":function(){for(;c--&&!(c>0&&this.is_widget(s,c)&&-1===t.inArray(a[s][c],l)&&(n=o.call(a[s][c],s,c),l.push(a[s][c]),n)););},"for_each/below":function(){for(c=r+1,h=a[s].length;h>c&&(!this.is_widget(s,c)||-1!==t.inArray(a[s][c],l)||(n=o.call(a[s][c],s,c),l.push(a[s][c]),!n));c++);}};p[_]&&p[_].call(this)}},o.for_each_widget_above=function(t,i,e){return this._traversing_widgets("for_each","above",t,i,e),this},o.for_each_widget_below=function(t,i,e){return this._traversing_widgets("for_each","below",t,i,e),this},o.get_highest_occupied_cell=function(){for(var t,i=this.gridmap,e=i[1].length,s=[],r=[],o=i.length-1;o>=1;o--)for(t=e-1;t>=1;t--)if(this.is_widget(o,t)){s.push(t),r.push(o);break}return{col:Math.max.apply(Math,r),row:Math.max.apply(Math,s)}},o.get_widgets_from=function(i,e){this.gridmap;var s=t();return i&&(s=s.add(this.$widgets.filter(function(){var e=t(this).attr("data-col");return e===i||e>i}))),e&&(s=s.add(this.$widgets.filter(function(){var i=t(this).attr("data-row");return i===e||i>e}))),s},o.set_dom_grid_height=function(t){if(t===undefined){var i=this.get_highest_occupied_cell().row;t=i*this.min_widget_height}return this.container_height=t,this.$el.css("height",this.container_height),this},o.set_dom_grid_width=function(t){return t===undefined&&(t=this.get_highest_occupied_cell().col),t=Math.min(this.options.max_cols,Math.max(t,this.options.min_cols)),this.container_width=t*this.min_widget_width,this.$el.css("width",this.container_width),this},o.generate_stylesheet=function(i){var e,r="",o=this.options.max_size_x||this.cols;i||(i={}),i.cols||(i.cols=this.cols),i.rows||(i.rows=this.rows),i.namespace||(i.namespace=this.options.namespace),i.widget_base_dimensions||(i.widget_base_dimensions=this.options.widget_base_dimensions),i.widget_margins||(i.widget_margins=this.options.widget_margins),i.min_widget_width=2*i.widget_margins[0]+i.widget_base_dimensions[0],i.min_widget_height=2*i.widget_margins[1]+i.widget_base_dimensions[1];var a=t.param(i);if(t.inArray(a,s.generated_stylesheets)>=0)return!1;for(s.generated_stylesheets.push(a),e=i.cols;e>=0;e--)r+=i.namespace+' [data-col="'+(e+1)+'"] { left:'+(e*i.widget_base_dimensions[0]+e*i.widget_margins[0]+(e+1)*i.widget_margins[0])+"px; }\n";for(e=i.rows;e>=0;e--)r+=i.namespace+' [data-row="'+(e+1)+'"] { top:'+(e*i.widget_base_dimensions[1]+e*i.widget_margins[1]+(e+1)*i.widget_margins[1])+"px; }\n";for(var n=1;i.rows>=n;n++)r+=i.namespace+' [data-sizey="'+n+'"] { height:'+(n*i.widget_base_dimensions[1]+(n-1)*2*i.widget_margins[1])+"px; }\n";for(var h=1;o>=h;h++)r+=i.namespace+' [data-sizex="'+h+'"] { width:'+(h*i.widget_base_dimensions[0]+(h-1)*2*i.widget_margins[0])+"px; }\n";return this.add_style_tag(r)},o.add_style_tag=function(t){var i=e,s=i.createElement("style");return i.getElementsByTagName("head")[0].appendChild(s),s.setAttribute("type","text/css"),s.styleSheet?s.styleSheet.cssText=t:s.appendChild(e.createTextNode(t)),this.$style_tags=this.$style_tags.add(s),this},o.remove_style_tags=function(){this.$style_tags.remove()},o.generate_faux_grid=function(t,i){this.faux_grid=[],this.gridmap=[];var e,s;for(e=i;e>0;e--)for(this.gridmap[e]=[],s=t;s>0;s--)this.add_faux_cell(s,e);return this},o.add_faux_cell=function(i,e){var s=t({left:this.baseX+(e-1)*this.min_widget_width,top:this.baseY+(i-1)*this.min_widget_height,width:this.min_widget_width,height:this.min_widget_height,col:e,row:i,original_col:e,original_row:i}).coords();return t.isArray(this.gridmap[e])||(this.gridmap[e]=[]),this.gridmap[e][i]=!1,this.faux_grid.push(s),this},o.add_faux_rows=function(t){for(var i=this.rows,e=i+(t||1),s=e;s>i;s--)for(var r=this.cols;r>=1;r--)this.add_faux_cell(s,r);return this.rows=e,this.options.autogenerate_stylesheet&&this.generate_stylesheet(),this},o.add_faux_cols=function(t){var i=this.cols,e=i+(t||1);e=Math.min(e,this.options.max_cols);for(var s=i+1;e>=s;s++)for(var r=this.rows;r>=1;r--)this.add_faux_cell(r,s);return this.cols=e,this.options.autogenerate_stylesheet&&this.generate_stylesheet(),this},o.recalculate_faux_grid=function(){var e=this.$wrapper.width();return this.baseX=(t(i).width()-e)/2,this.baseY=this.$wrapper.offset().top,t.each(this.faux_grid,t.proxy(function(t,i){this.faux_grid[t]=i.update({left:this.baseX+(i.data.col-1)*this.min_widget_width,top:this.baseY+(i.data.row-1)*this.min_widget_height})},this)),this},o.get_widgets_from_DOM=function(){return this.$widgets.each(t.proxy(function(i,e){this.register_widget(t(e))},this)),this},o.generate_grid_and_stylesheet=function(){var e=this.$wrapper.width(),s=this.options.max_cols,r=Math.floor(e/this.min_widget_width)+this.options.extra_cols,o=this.$widgets.map(function(){return t(this).attr("data-col")}).get();o.length||(o=[0]);var a=Math.max.apply(Math,o);this.cols=Math.max(a,r,this.options.min_cols),1/0!==s&&s>=a&&this.cols>s&&(this.cols=s);var n=this.options.extra_rows;return this.$widgets.each(function(i,e){n+=+t(e).attr("data-sizey")}),this.rows=Math.max(n,this.options.min_rows),this.baseX=(t(i).width()-e)/2,this.baseY=this.$wrapper.offset().top,this.options.autogenerate_stylesheet&&this.generate_stylesheet(),this.generate_faux_grid(this.rows,this.cols)},o.destroy=function(){return t(i).unbind(".gridster"),this.drag_api&&this.drag_api.destroy(),this.remove_style_tags(),this.$el.remove(),this},t.fn.gridster=function(i){return this.each(function(){t(this).data("gridster")||t(this).data("gridster",new s(this,i))})},t.Gridster=o}(jQuery,window,document),function(t){var i=t.Gridster;i.widgets_in_col=function(t){if(!this.gridmap[t])return!1;for(var i=this.gridmap[t].length-1;i>=0;i--)if(this.is_widget(t,i)!==!1)return!0;return!1},i.widgets_in_row=function(t){for(var i=this.gridmap.length;i>=1;i--)if(this.is_widget(i,t)!==!1)return!0;return!1},i.widgets_in_range=function(i,e,s,r){var o,a,n,h,_=t([]);for(o=s;o>=i;o--)for(a=r;a>=e;a--)n=this.is_widget(o,a),n!==!1&&(h=n.data("coords").grid,h.col>=i&&s>=h.col&&h.row>=e&&r>=h.row&&(_=_.add(n)));return _},i.get_bottom_most_occupied_cell=function(){var t=0,i=0;return this.for_each_cell(function(e,s,r){e&&r>t&&(t=r,i=s)}),{col:i,row:t}},i.get_right_most_occupied_cell=function(){var t=0,i=0;return this.for_each_cell(function(e,s,r){return e?(t=r,i=s,!1):undefined}),{col:i,row:t}},i.for_each_cell=function(t,i){i||(i=this.gridmap);var e=i.length,s=i[1].length;t:for(var r=e-1;r>=1;r--)for(var o=s-1;o>=1;o--){var a=i[r]&&i[r][o];if(t){if(t.call(this,a,r,o)===!1)break t}else;}},i.next_position_in_range=function(t,i,e){t||(t=1),i||(i=1);for(var s,r=this.gridmap,o=r.length,a=[],n=1;o>n;n++){s=e||r[n].length;for(var h=1;s>=h;h++){var _=this.can_move_to({size_x:t,size_y:i},n,h,e);_&&a.push({col:n,row:h,size_y:i,size_x:t})}}return a.length>=1?this.sort_by_col_asc(a)[0]:!1},i.closest_to_right=function(t,i){if(!this.gridmap[t])return!1;for(var e=this.gridmap.length-1,s=t;e>=s;s++)if(this.gridmap[s][i])return{col:s,row:i};return!1},i.closest_to_left=function(t,i){if(this.gridmap.length-1,!this.gridmap[t])return!1;for(var e=t;e>=1;e--)if(this.gridmap[e][i])return{col:e,row:i};return!1}}(jQuery,window,document);
\ No newline at end of file
diff --git a/package.json b/package.json
index 0d4af43b7d..82b33debe0 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "gridster",
   "title": "gridster.js",
   "description": "a drag-and-drop multi-column jQuery grid plugin",
-  "version": "0.2.1",
+  "version": "0.3.0",
   "homepage": "http://gridster.net/",
   "author": {
     "name": "ducksboard",