/*
 * jQuery UI Resizable
 *
 * Copyright (c) 2008 Paul Bakaus
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 * 
 * http://docs.jquery.com/UI/Resizables
 *
 * Depends:
 *   ui.base.js
 *
 * Revision: $Id: ui.resizable.js 5205 2008-04-06 16:12:50Z braeker $
 */
;(function($) {
    
    $.fn.extend({
        resizable: function(options, data) {
            var args = Array.prototype.slice.call(arguments, 1);
            
            return this.each(function() {
                if (typeof options == "string") {
                    var resize = $.data(this, "resizable");
                    if (resize) resize[options].apply(resize, args);
    
                } else if(!$(this).is(".ui-resizable"))
                    new $.ui.resizable(this, options);
            });
        }
    });
    $.ui.resizable = function(element, options) {
        //Initialize needed constants
        var self = this;
        
        this.element = $(element);
        
        $.data(element, "resizable", this);
        
        // simulate .ui-resizable { position: relative; }
        var elpos = this.element.css('position');
        this.element.addClass("ui-resizable").css({ position: /static/.test(elpos) ? 'relative' : elpos });
        
        //Prepare the passed options
        this.options = $.extend({
            preventDefault: true,
            transparent: false,
            minWidth: 10,
            minHeight: 10,
            aspectRatio: false,
            disableSelection: true,
            preserveCursor: true,
            autohide: false,
            knobHandles: false
        }, options);
        
        this.options._aspectRatio = !!(this.options.aspectRatio);
        
        // force proxy if helper is enabled
        this.options.proxy = this.options.proxy || this.options.ghost ? 'proxy' : null; 
        
        // force proxy if animation is enabled
        this.options.proxy = this.options.proxy || this.options.animate ? 'proxy' : null; 
        
        // if knobHandles equals true set to ui-resizable-knob-handle
        this.options.knobHandles = this.options.knobHandles === true ? 'ui-resizable-knob-handle' : this.options.knobHandles;
        
        $(element).bind("setData.resizable", function(event, key, value){
            self.options[key] = value;
        }).bind("getData.resizable", function(event, key){
            return self.options[key];
        });
    
        var o = this.options;
    
        //Default Theme
        var aBorder = '1px solid #DEDEDE';
    
        o.defaultTheme = {
            'ui-resizable': { display: 'block' },
            'ui-resizable-handle': { position: 'absolute', background: '#F2F2F2', fontSize: '0.1px' },
            'ui-resizable-n': { cursor: 'n-resize', height: '4px', left: '0px', right: '0px', borderTop: aBorder },
            'ui-resizable-s': { cursor: 's-resize', height: '4px', left: '0px', right: '0px', borderBottom: aBorder },
            'ui-resizable-e': { cursor: 'e-resize', width: '4px', top: '0px', bottom: '0px', borderRight: aBorder },
            'ui-resizable-w': { cursor: 'w-resize', width: '4px', top: '0px', bottom: '0px', borderLeft: aBorder },
            'ui-resizable-se': { cursor: 'se-resize', width: '4px', height: '4px', borderRight: aBorder, borderBottom: aBorder },
            'ui-resizable-sw': { cursor: 'sw-resize', width: '4px', height: '4px', borderBottom: aBorder, borderLeft: aBorder },
            'ui-resizable-ne': { cursor: 'ne-resize', width: '4px', height: '4px', borderRight: aBorder, borderTop: aBorder },
            'ui-resizable-nw': { cursor: 'nw-resize', width: '4px', height: '4px', borderLeft: aBorder, borderTop: aBorder }
        };
        
        o.knobTheme = {
            'ui-resizable-handle': { background: '#F2F2F2', border: '1px solid #808080', height: '8px', width: '8px' },
            'ui-resizable-n': { cursor: 'n-resize', top: '-4px', left: '45%' },
            'ui-resizable-s': { cursor: 's-resize', bottom: '-4px', left: '45%' },
            'ui-resizable-e': { cursor: 'e-resize', right: '-4px', top: '45%' },
            'ui-resizable-w': { cursor: 'w-resize', left: '-4px', top: '45%' },
            'ui-resizable-se': { cursor: 'se-resize', right: '-4px', bottom: '-4px' },
            'ui-resizable-sw': { cursor: 'sw-resize', left: '-4px', bottom: '-4px' },
            'ui-resizable-nw': { cursor: 'nw-resize', left: '-4px', top: '-4px' },
            'ui-resizable-ne': { cursor: 'ne-resize', right: '-4px', top: '-4px' }
        };
    
        //Position the node
        if(!o.proxy && (this.element.css('position') == 'static' || this.element.css('position') === ''))
            this.element.css('position', 'relative');
    
        o._nodeName = element.nodeName;
    
        //Wrap the element if it cannot hold child nodes
        if(o._nodeName.match(/textarea|input|select|button|img/i)) {
            var el = this.element;
            
            //Opera fixing relative position
            if (/relative/.test(el.css('position')) && $.browser.opera)
                el.css({ position: 'relative', top: 'auto', left: 'auto' });
            
            //Create a wrapper element and set the wrapper to the new current internal element
            el.wrap(
                $('<div class="ui-wrapper"    style="overflow: hidden;"></div>').css( {
                    position: el.css('position'),
                    width: el.outerWidth(),
                    height: el.outerHeight(),
                    top: el.css('top'),
                    left: el.css('left')
                })
            );
            
            var oel = this.element; element = element.parentNode; this.element = $(element);
    
            //Move margins to the wrapper
            this.element.css({ marginLeft: oel.css("marginLeft"), marginTop: oel.css("marginTop"),
                marginRight: oel.css("marginRight"), marginBottom: oel.css("marginBottom")
            });
    
            oel.css({ marginLeft: 0, marginTop: 0, marginRight: 0, marginBottom: 0});
    
            //Prevent Safari textarea resize
            if ($.browser.safari && o.preventDefault) oel.css('resize', 'none');
    
            o.proportionallyResize = oel.css({ position: 'static', zoom: 1, display: 'block' });
            
            // avoid IE jump
            this.element.css({ margin: oel.css('margin') });
            
            // fix handlers offset
            this._proportionallyResize();
        }
    
        if(!o.handles) o.handles = !$('.ui-resizable-handle', element).length ? "e,s,se" : { n: '.ui-resizable-n', e: '.ui-resizable-e', s: '.ui-resizable-s', w: '.ui-resizable-w', se: '.ui-resizable-se', sw: '.ui-resizable-sw', ne: '.ui-resizable-ne', nw: '.ui-resizable-nw' };
        if(o.handles.constructor == String) {
    
            if(o.handles == 'all') o.handles = 'n,e,s,w,se,sw,ne,nw';
    
            var n = o.handles.split(","); o.handles = {};
    
            o.zIndex = o.zIndex || 1000;
            
            // insertions are applied when don't have theme loaded
            var insertionsDefault = {
                handle: 'position: absolute; display: none; overflow:hidden;',
                n: 'top: 0pt; width:100%;',
                e: 'right: 0pt; height:100%;',
                s: 'bottom: 0pt; width:100%;',
                w: 'left: 0pt; height:100%;',
                se: 'bottom: 0pt; right: 0px;',
                sw: 'bottom: 0pt; left: 0px;',
                ne: 'top: 0pt; right: 0px;',
                nw: 'top: 0pt; left: 0px;'
            };
    
            for(var i = 0; i < n.length; i++) {
                var handle = jQuery.trim(n[i]), dt = o.defaultTheme, hname = 'ui-resizable-'+handle, loadDefault = !$.ui.css(hname) && !o.knobHandles, userKnobClass = $.ui.css('ui-resizable-knob-handle'), 
                            allDefTheme = $.extend(dt[hname], dt['ui-resizable-handle']), allKnobTheme = $.extend(o.knobTheme[hname], !userKnobClass ? o.knobTheme['ui-resizable-handle'] : {});
                
                // increase zIndex of sw, se, ne, nw axis
                var applyZIndex = /sw|se|ne|nw/.test(handle) ? { zIndex: ++o.zIndex } : {};
                
                var defCss = (loadDefault ? insertionsDefault[handle] : ''), 
                    axis = $(['<div class="ui-resizable-handle ', hname, '" style="', defCss, insertionsDefault.handle, '"></div>'].join('')).css( applyZIndex );
                o.handles[handle] = '.ui-resizable-'+handle;
                
                this.element.append(
                    //Theme detection, if not loaded, load o.defaultTheme
                    axis.css( loadDefault ? allDefTheme : {} )
                        // Load the knobHandle css, fix width, height, top, left...
                        .css( o.knobHandles ? allKnobTheme : {} ).addClass(o.knobHandles ? 'ui-resizable-knob-handle' : '').addClass(o.knobHandles)
                );
            }
            
            if (o.knobHandles) this.element.addClass('ui-resizable-knob').css( !$.ui.css('ui-resizable-knob') ? { /*border: '1px #fff dashed'*/ } : {} );
        }
    
        this._renderAxis = function(target) {
            target = target || this.element;
    
            for(var i in o.handles) {
                if(o.handles[i].constructor == String) 
                    o.handles[i] = $(o.handles[i], element).show();
    
                if (o.transparent)
                    o.handles[i].css({opacity:0});
    
                //Apply pad to wrapper element, needed to fix axis position (textarea, inputs, scrolls)
                if (this.element.is('.ui-wrapper') && 
                    o._nodeName.match(/textarea|input|select|button/i)) {
    
                    var axis = $(o.handles[i], element), padWrapper = 0;
    
                    //Checking the correct pad and border
                    padWrapper = /sw|ne|nw|se|n|s/.test(i) ? axis.outerHeight() : axis.outerWidth();
    
                    //The padding type i have to apply...
                    var padPos = [ 'padding', 
                        /ne|nw|n/.test(i) ? 'Top' :
                        /se|sw|s/.test(i) ? 'Bottom' : 
                        /^e$/.test(i) ? 'Right' : 'Left' ].join(""); 
    
                    if (!o.transparent)
                        target.css(padPos, padWrapper);
    
                    this._proportionallyResize();
                }
                if(!$(o.handles[i]).length) continue;
            }
        };
            
        this._renderAxis(this.element);
        o._handles = $('.ui-resizable-handle', self.element);
        
        if (o.disableSelection)
            o._handles.each(function(i, e) { $.ui.disableSelection(e); });
        
        //Matching axis name
        o._handles.mouseover(function() {
            if (!o.resizing) {
                if (this.className) 
                    var axis = this.className.match(/ui-resizable-(se|sw|ne|nw|n|e|s|w)/i);
                //Axis, default = se
                self.axis = o.axis = axis && axis[1] ? axis[1] : 'se';
            }
        });
                
        //If we want to auto hide the elements
        if (o.autohide) {
            o._handles.hide();
            $(self.element).addClass("ui-resizable-autohide").hover(function() {
                $(this).removeClass("ui-resizable-autohide");
                o._handles.show();
            },
            function(){
                if (!o.resizing) {
                    $(this).addClass("ui-resizable-autohide");
                    o._handles.hide();
                }
            });
        }
    
        //Initialize mouse events for interaction
        this.element.mouseInteraction({
            executor: this,
            delay: 0,
            distance: 0,
            dragPrevention: ['input','textarea','button','select','option'],
            start: this.start,
            stop: this.stop,
            drag: this.drag,
            condition: function(e) {
                if(this.disabled) return false;
                for(var i in this.options.handles) {
                    if($(this.options.handles[i])[0] == e.target) return true;
                }
                return false;
            }
        });
    };
    $.extend($.ui.resizable.prototype, {
        plugins: {},
        ui: function() {
            return {
                instance: this,
                axis: this.options.axis,
                options: this.options
            };
        },
        _renderProxy: function() {
            var el = this.element, o = this.options;
            this.elementOffset = el.offset();
    
            if(o.proxy) {
                this.helper = this.helper || $('<div style="overflow:hidden;"></div>');
    
                // fix ie6 offset
                var ie6 = $.browser.msie && $.browser.version  < 7, ie6offset = (ie6 ? 1 : 0),
                pxyoffset = ( ie6 ? 2 : -1 );
    
                this.helper.addClass(o.proxy).css({
                    width: el.outerWidth() + pxyoffset,
                    height: el.outerHeight() + pxyoffset,
                    position: 'absolute',
                    left: this.elementOffset.left - ie6offset +'px',
                    top: this.elementOffset.top - ie6offset +'px',
                    zIndex: ++o.zIndex
                });
                
                this.helper.appendTo("body");
    
                if (o.disableSelection)
                    $.ui.disableSelection(this.helper.get(0));
    
            } else {
                this.helper = el; 
            }
        },
        propagate: function(n,e) {
            $.ui.plugin.call(this, n, [e, this.ui()]);
            this.element.triggerHandler(n == "resize" ? n : ["resize", n].join(""), [e, this.ui()], this.options[n]);
        },
        destroy: function() {
            var el = this.element, wrapped = el.children(".ui-resizable").get(0),
            
            _destroy = function(exp) {
                $(exp).removeClass("ui-resizable ui-resizable-disabled")
                    .removeMouseInteraction().removeData("resizable").unbind(".resizable").find('.ui-resizable-handle').remove();
            };
            
            _destroy(el);
            
            if (el.is('.ui-wrapper') && wrapped) {
                  el.parent().append(
                    $(wrapped).css({
                      position: el.css('position'),
                      width: el.outerWidth(),
                      height: el.outerHeight(),
                      top: el.css('top'),
                      left: el.css('left')
                  })
                ).end().remove();
                
                _destroy(wrapped);
              }
        },
        enable: function() {
            this.element.removeClass("ui-resizable-disabled");
            this.disabled = false;
        },
        disable: function() {
            this.element.addClass("ui-resizable-disabled");
            this.disabled = true;
        },
        start: function(e) {
            var o = this.options, iniPos = this.element.position(), el = this.element, 
                num = function(v) { return parseInt(v, 10) || 0; }, ie6 = $.browser.msie && $.browser.version < 7;
            o.resizing = true;
            o.documentScroll = { top: $(document).scrollTop(), left: $(document).scrollLeft() };
    
            // bugfix #1749
            if (el.is('.ui-draggable') || (/absolute/).test(el.css('position'))) {
                
                // sOffset decides if document scrollOffset will be added to the top/left of the resizable element
                var sOffset = $.browser.msie && !o.containment && (/absolute/).test(el.css('position')) && !(/relative/).test(el.parent().css('position'));
                var dscrollt = sOffset ? o.documentScroll.top : 0, dscrolll = sOffset ? o.documentScroll.left : 0;
                
                el.css({ position: 'absolute', top: (iniPos.top + dscrollt), left: (iniPos.left + dscrolll) });
            }
            
            //Opera fixing relative position
            if (/relative/.test(el.css('position')) && $.browser.opera)
                el.css({ position: 'relative', top: 'auto', left: 'auto' });
    
            this._renderProxy();
    
            var curleft = num(this.helper.css('left')), curtop = num(this.helper.css('top'));
            
            //Store needed variables
            this.offset = this.helper.offset();
            this.position = { left: curleft, top: curtop };
            this.size = o.proxy || ie6 ? { width: el.outerWidth(), height: el.outerHeight() } : { width: el.width(), height: el.height() };
            this.originalSize = o.proxy || ie6 ? { width: el.outerWidth(), height: el.outerHeight() } : { width: el.width(), height: el.height() };
            this.originalPosition = { left: curleft, top: curtop };
            this.sizeDiff = { width: el.outerWidth() - el.width(), height: el.outerHeight() - el.height() };
            this.originalMousePosition = { left: e.pageX, top: e.pageY };
            
            //Aspect Ratio
            o.aspectRatio = (typeof o.aspectRatio == 'number') ? o.aspectRatio : ((this.originalSize.height / this.originalSize.width)||1);
    
            if (o.preserveCursor)
                $('body').css('cursor', this.axis + '-resize');
                
            this.propagate("start", e);     
            return false;
        },
        stop: function(e) {
            this.options.resizing = false;
            var o = this.options, num = function(v) { return parseInt(v, 10) || 0; }, self = this;
    
            if(o.proxy) {
                var pr = o.proportionallyResize, ista = pr && /textarea/i.test(pr.get(0).nodeName), 
                            soffseth = ista && $.ui.hasScroll(pr.get(0), 'left') /* TODO - jump height */ ? 0 : self.sizeDiff.height,
                                soffsetw = ista ? 0 : self.sizeDiff.width;
            
                var style = { width: (self.size.width - soffsetw), height: (self.size.height - soffseth) },
                        left = parseInt(self.element.css('left'), 10) + (self.position.left - self.originalPosition.left), 
                            top = parseInt(self.element.css('top'), 10) + (self.position.top - self.originalPosition.top);
                
                if (!o.animate)
                    this.element.css($.extend(style, { top: top, left: left }));
                
                if (o.proxy && !o.animate) this._proportionallyResize();
                this.helper.remove();
            }
            if (o.preserveCursor)
            $('body').css('cursor', 'auto');
    
            this.propagate("stop", e);    
            return false;
        },
        drag: function(e) {
            //Increase performance, avoid regex
            var el = this.helper, o = this.options, props = {},
                self = this, smp = this.originalMousePosition, a = this.axis;
            var dx = (e.pageX-smp.left)||0, dy = (e.pageY-smp.top)||0;
            var trigger = this.change[a];
            if (!trigger) return false;
         
            // Calculate the attrs that will be change
            var data = trigger.apply(this, [e, dx, dy]), ie6 = $.browser.msie && $.browser.version < 7, csdif = this.sizeDiff;
         
            if (o._aspectRatio || e.shiftKey)
                data = this._updateRatio(data, e);
            
            data = this._respectSize(data, e);
            
            this.propagate("resize", e);
            
            el.css({
                top: this.position.top + "px", left: this.position.left + "px", 
                width: this.size.width + "px", height: this.size.height + "px"
            });
            
            if (!o.proxy && o.proportionallyResize)
                this._proportionallyResize();
            
            this._updateCache(data);
            
            return false;
        },
        
        _updateCache: function(data) {
            var o = this.options;
            this.offset = this.helper.offset();
            if (data.left) this.position.left = data.left;
            if (data.top) this.position.top = data.top;
            if (data.height) this.size.height = data.height;
            if (data.width) this.size.width = data.width;
        },
        
        _updateRatio: function(data, e) {
            var o = this.options, cpos = this.position, csize = this.size, a = this.axis;
            
            if (data.height) data.width = Math.round(csize.height / o.aspectRatio);
            else if (data.width) data.height = Math.round(csize.width * o.aspectRatio);
            
            if (a == 'sw') {
                data.left = cpos.left + (csize.width - data.width);
                data.top = null;
            }
            if (a == 'nw') { 
                data.top = cpos.top + (csize.height - data.height);
                data.left = cpos.left + (csize.width - data.width);
            }
            
            return data;
        },
        
        _respectSize: function(data, e) {
            
            var el = this.helper, o = this.options, pRatio = o._aspectRatio || e.shiftKey,  a = this.axis, 
                    ismaxw = data.width && o.maxWidth && o.maxWidth < data.width, ismaxh = data.height && o.maxHeight && o.maxHeight < data.height,
                        isminw = data.width && o.minWidth && o.minWidth > data.width, isminh = data.height && o.minHeight && o.minHeight > data.height;
            
            if (isminw) data.width = o.minWidth;
            if (isminh) data.height = o.minHeight;
            if (ismaxw) data.width = o.maxWidth;
            if (ismaxh) data.height = o.maxHeight;
            
            var dw = this.originalPosition.left + this.originalSize.width, dh = this.position.top + this.size.height;
            var cw = /sw|nw|w/.test(a), ch = /nw|ne|n/.test(a);
            
            if (isminw && cw) data.left = dw - o.minWidth;
            if (ismaxw && cw) data.left = dw - o.maxWidth;
            if (isminh && ch)    data.top = dh - o.minHeight;
            if (ismaxh && ch)    data.top = dh - o.maxHeight;
            
            // fixing jump error on top/left - bug #2330
            var isNotwh = !data.width && !data.height;
            if (isNotwh && !data.left && data.top) data.top = null;
            else if (isNotwh && !data.top && data.left) data.left = null;
            
            return data;
        },
        
        _proportionallyResize: function() {
            var o = this.options;
            if (!o.proportionallyResize) return;
            var prel = o.proportionallyResize, el = this.helper || this.element;
         
            if (!o.borderDif) {
                var b = [prel.css('borderTopWidth'), prel.css('borderRightWidth'), prel.css('borderBottomWidth'), prel.css('borderLeftWidth')],
                    p = [prel.css('paddingTop'), prel.css('paddingRight'), prel.css('paddingBottom'), prel.css('paddingLeft')];
                 
                o.borderDif = $.map(b, function(v, i) {
                    var border = parseInt(v,10)||0, padding = parseInt(p[i],10)||0;
                    return border + padding; 
                });
            }
            prel.css({
                height: (el.height() - o.borderDif[0] - o.borderDif[2]) + "px",
                width: (el.width() - o.borderDif[1] - o.borderDif[3]) + "px"
            });
        },
        
        change: {
            e: function(e, dx, dy) {
                return { width: this.originalSize.width + dx };
            },
            w: function(e, dx, dy) {
                var o = this.options, cs = this.originalSize, sp = this.originalPosition;
                return { left: sp.left + dx, width: cs.width - dx };
            },
            n: function(e, dx, dy) {
                var o = this.options, cs = this.originalSize, sp = this.originalPosition;
                return { top: sp.top + dy, height: cs.height - dy };
            },
            s: function(e, dx, dy) {
                return { height: this.originalSize.height + dy };
            },
            se: function(e, dx, dy) {
                return $.extend(this.change.s.apply(this, arguments), this.change.e.apply(this, [e, dx, dy]));
            },
            sw: function(e, dx, dy) {
                return $.extend(this.change.s.apply(this, arguments), this.change.w.apply(this, [e, dx, dy]));
            },
            ne: function(e, dx, dy) {
                return $.extend(this.change.n.apply(this, arguments), this.change.e.apply(this, [e, dx, dy]));
            },
            nw: function(e, dx, dy) {
                return $.extend(this.change.n.apply(this, arguments), this.change.w.apply(this, [e, dx, dy]));
            }
        }
    });
/*
 * Resizable Extensions
 */
    $.ui.plugin.add("resizable", "containment", {
        
        start: function(e, ui) {
            var o = ui.options, self = ui.instance, el = self.element;
            var oc = o.containment,    ce = (oc instanceof jQuery) ? oc.get(0) : (/parent/.test(oc)) ? el.parent().get(0) : oc;
            if (!ce) return;
            
            if (/document/.test(oc) || oc == document) {
                self.containerOffset = { left: 0, top: 0 };
                self.parentData = { 
                    element: $(document), left: 0, top: 0, width: $(document).width(),
                    height: $(document).height() || document.body.parentNode.scrollHeight
                };
            }
            
            // i'm a node, so compute top, left, right, bottom
            else{
                self.containerOffset = $(ce).offset(), self.containerSize = { height: $(ce).innerHeight(), width: $(ce).innerWidth() };
            
                var co = self.containerOffset, ch = self.containerSize.height,    cw = self.containerSize.width, 
                            width = ($.ui.hasScroll(ce, "left") ? ce.scrollWidth : cw ), height = ($.ui.hasScroll(ce) ? ce.scrollHeight : ch);
            
                self.parentData = { 
                    element: ce, left: co.left, top: co.top, width: width, height: height
                };
            }
        },
        
        resize: function(e, ui) {
            var o = ui.options, self = ui.instance, ps = self.containerSize, 
                        co = self.containerOffset, cs = self.size, cp = self.position,
                            pRatio = o._aspectRatio || e.shiftKey;
            
            if (cp.left < (o.proxy ? co.left : 0)) {
                self.size.width = self.size.width + (o.proxy ? (self.position.left - co.left) : self.position.left);
                if (pRatio) self.size.height = self.size.width * o.aspectRatio;
                self.position.left = o.proxy ? co.left : 0;
            }
            
            if (cp.top < (o.proxy ? co.top : 0)) {
                self.size.height = self.size.height + (o.proxy ? (self.position.top - co.top) : self.position.top);
                if (pRatio) self.size.width = self.size.height / o.aspectRatio;
                self.position.top = o.proxy ? co.top : 0;
            }
            
            var woset = (o.proxy ? self.offset.left - co.left : self.position.left) + self.sizeDiff.width, 
                        hoset = (o.proxy ? self.offset.top - co.top : self.position.top) + self.sizeDiff.height;
            
            if (woset + self.size.width >= self.parentData.width) {
                self.size.width = self.parentData.width - woset;
                if (pRatio) self.size.height = self.size.width * o.aspectRatio;
            }
            
            if (hoset + self.size.height >= self.parentData.height) {
                self.size.height = self.parentData.height - hoset;
                if (pRatio) self.size.width = self.size.height / o.aspectRatio;
            }
        }
    });
    
    $.ui.plugin.add("resizable", "grid", {
        
        resize: function(e, ui) {
            var o = ui.options, self =  ui.instance, cs = self.size, os = self.originalSize, op = self.originalPosition, a = self.axis, ratio = o._aspectRatio || e.shiftKey;
            o.grid = typeof o.grid == "number" ? [o.grid, o.grid] : o.grid;
            var ox = Math.round((cs.width - os.width) / o.grid[0]) * o.grid[0], oy = Math.round((cs.height - os.height) / o.grid[1]) * o.grid[1];
            
            if (/^(se|s|e)$/.test(a)) {
                self.size.width = os.width + ox;
                self.size.height = os.height + oy;
            }
            else if (/^(ne)$/.test(a)) {
                self.size.width = os.width + ox;
                self.size.height = os.height + oy;
                self.position.top = op.top - oy;
            }
            else if (/^(sw)$/.test(a)) {
                self.size.width = os.width + ox;
                self.size.height = os.height + oy;
                self.position.left = op.left - ox;
            }
            else {
                self.size.width = os.width + ox;
                self.size.height = os.height + oy;
                self.position.top = op.top - oy;
                self.position.left = op.left - ox;
            }
        }
        
    });
    
    $.ui.plugin.add("resizable", "animate", {
        
        stop: function(e, ui) {
            var o = ui.options, self =  ui.instance;
            var pr = o.proportionallyResize, ista = pr && /textarea/i.test(pr.get(0).nodeName), 
                            soffseth = ista && $.ui.hasScroll(pr.get(0), 'left') /* TODO - jump height */ ? 0 : self.sizeDiff.height,
                                soffsetw = ista ? 0 : self.sizeDiff.width;
            
            var style = { width: (self.size.width - soffsetw), height: (self.size.height - soffseth) },
                        left = parseInt(self.element.css('left'), 10) + (self.position.left - self.originalPosition.left), 
                            top = parseInt(self.element.css('top'), 10) + (self.position.top - self.originalPosition.top); 
            
            self.element.animate(
                $.extend(style, { top: top, left: left }),
                { 
                    duration: o.animateDuration || "slow", 
                    easing: o.animateEasing || "swing", 
                    step: function() {
                        if (pr) pr.css({ width: self.element.css('width'), height: self.element.css('height') });
                    }
                }
            );
        }
        
    });
    
    $.ui.plugin.add("resizable", "ghost", {
        
        start: function(e, ui) {
            var o = ui.options, self =  ui.instance, pr = o.proportionallyResize, cs = self.size;
            
            if (!pr) self.ghost = self.element.clone();
            else self.ghost = pr.clone();
            
            self.ghost.css(
                { opacity: .25, display: 'block', position: 'relative', height: cs.height, width: cs.width, margin: 0, left: 0, top: 0 }
            )
            .addClass('ui-resizable-ghost').addClass(typeof o.ghost == 'string' ? o.ghost : '');
            
            self.ghost.appendTo(self.helper);
            
        },
        
        resize: function(e, ui){
            var o = ui.options, self =  ui.instance, pr = o.proportionallyResize;
            
            if (self.ghost) self.ghost.css({ position: 'relative', height: self.size.height, width: self.size.width });
            
        },
        
        stop: function(e, ui){
            var o = ui.options, self =  ui.instance, pr = o.proportionallyResize;
            if (self.ghost && self.helper) self.helper.get(0).removeChild(self.ghost.get(0));
        }
        
    });
})(jQuery);