;
(function ($) {
    $.ui = {
        plugin: {
            add: function (module, option, set) {
                var proto = $.ui[module].prototype;
                for (var i in set) {
                    proto.plugins[i] = proto.plugins[i] || [];
                    proto.plugins[i].push([option, set[i]]);
                }
            },
            call: function (instance, name, args) {
                var set = instance.plugins[name];
                if (!set) {
                    return;
                }
                for (var i = 0; i < set.length; i++) {
                    if (instance.options[set[i][0]]) {
                        set[i][1].apply(instance.element, args);
                    }
                }
            }
        },
        cssCache: {},
        css: function (name) {
            if ($.ui.cssCache[name]) {
                return $.ui.cssCache[name];
            }
            var tmp = $('<div class="ui-gen">').addClass(name).css({
                position: 'absolute',
                top: '-5000px',
                left: '-5000px',
                display: 'block'
            }).appendTo('body');
            $.ui.cssCache[name] = !!((!(/auto|default/).test(tmp.css('cursor')) || (/^[1-9]/).test(tmp.css('height')) || (/^[1-9]/).test(tmp.css('width')) || !(/none/).test(tmp.css('backgroundImage')) || !(/transparent|rgba\(0, 0, 0, 0\)/).test(tmp.css('backgroundColor'))));
            try {
                $('body').get(0).removeChild(tmp.get(0));
            } catch(e) {}
            return $.ui.cssCache[name];
        },
        disableSelection: function (el) {
            $(el).attr('unselectable', 'on').css('MozUserSelect', 'none');
        },
        enableSelection: function (el) {
            $(el).attr('unselectable', 'off').css('MozUserSelect', '');
        },
        hasScroll: function (e, a) {
            var scroll = /top/.test(a || "top") ? 'scrollTop' : 'scrollLeft',
            has = false;
            if (e[scroll] > 0) return true;
            e[scroll] = 1;
            has = e[scroll] > 0 ? true : false;
            e[scroll] = 0;
            return has;
        }
    };
    var _remove = $.fn.remove;
    $.fn.remove = function () {
        $("*", this).add(this).triggerHandler("remove");
        return _remove.apply(this, arguments);
    };

    function getter(namespace, plugin, method) {
        var methods = $[namespace][plugin].getter || [];
        methods = (typeof methods == "string" ? methods.split(/,?\s+/) : methods);
        return ($.inArray(method, methods) != -1);
    }
    $.widget = function (name, prototype) {
        var namespace = name.split(".")[0];
        name = name.split(".")[1];
        $.fn[name] = function (options) {
            var isMethodCall = (typeof options == 'string'),
                args = Array.prototype.slice.call(arguments, 1);
            if (isMethodCall && getter(namespace, name, options)) {
                var instance = $.data(this[0], name);
                return (instance ? instance[options].apply(instance, args) : undefined);
            }
            return this.each(function () {
                var instance = $.data(this, name);
                if (isMethodCall && instance && $.isFunction(instance[options])) {
                    instance[options].apply(instance, args);
                } else if (!isMethodCall) {
                    $.data(this, name, new $[namespace][name](this, options));
                }
            });
        };
        $[namespace][name] = function (element, options) {
            var self = this;
            this.widgetName = name;
            this.widgetBaseClass = namespace + '-' + name;
            this.options = $.extend({}, $.widget.defaults, $[namespace][name].defaults, options);
            this.element = $(element).bind('setData.' + name, function (e, key, value) {
                return self.setData(key, value);
            }).bind('getData.' + name, function (e, key) {
                return self.getData(key);
            }).bind('remove', function () {
                return self.destroy();
            });
            this.init();
        };
        $[namespace][name].prototype = $.extend({}, $.widget.prototype, prototype);
    };
    $.widget.prototype = {
        init: function () {},
        destroy: function () {
            this.element.removeData(this.widgetName);
        },
        getData: function (key) {
            return this.options[key];
        },
        setData: function (key, value) {
            this.options[key] = value;
            if (key == 'disabled') {
                this.element[value ? 'addClass' : 'removeClass'](this.widgetBaseClass + '-disabled');
            }
        },
        enable: function () {
            this.setData('disabled', false);
        },
        disable: function () {
            this.setData('disabled', true);
        }
    };
    $.widget.defaults = {
        disabled: false
    };
    $.ui.mouse = {
        mouseInit: function () {
            var self = this;
            this.element.bind('mousedown.' + this.widgetName, function (e) {
                return self.mouseDown(e);
            });
            if ($.browser.msie) {
                this._mouseUnselectable = this.element.attr('unselectable');
                this.element.attr('unselectable', 'on');
            }
            this.started = false;
        },
        mouseDestroy: function () {
            this.element.unbind('.' + this.widgetName);
            ($.browser.msie && this.element.attr('unselectable', this._mouseUnselectable));
        },
        mouseDown: function (e) {
            (this._mouseStarted && this.mouseUp(e));
            this._mouseDownEvent = e;
            var self = this,
                btnIsLeft = (e.which == 1),
                elIsCancel = (typeof this.options.cancel == "string" ? $(e.target).parents().add(e.target).filter(this.options.cancel).length : false);
            if (!btnIsLeft || elIsCancel || !this.mouseCapture(e)) {
                return true;
            }
            this._mouseDelayMet = !this.options.delay;
            if (!this._mouseDelayMet) {
                this._mouseDelayTimer = setTimeout(function () {
                    self._mouseDelayMet = true;
                }, this.options.delay);
            }
            if (this.mouseDistanceMet(e) && this.mouseDelayMet(e)) {
                this._mouseStarted = (this.mouseStart(e) !== false);
                if (!this._mouseStarted) {
                    e.preventDefault();
                    return true;
                }
            }
            this._mouseMoveDelegate = function (e) {
                return self.mouseMove(e);
            };
            this._mouseUpDelegate = function (e) {
                return self.mouseUp(e);
            };
            $(document).bind('mousemove.' + this.widgetName, this._mouseMoveDelegate).bind('mouseup.' + this.widgetName, this._mouseUpDelegate);
            return false;
        },
        mouseMove: function (e) {
            if ($.browser.msie && !e.button) {
                return this.mouseUp(e);
            }
            if (this._mouseStarted) {
                this.mouseDrag(e);
                return false;
            }
            if (this.mouseDistanceMet(e) && this.mouseDelayMet(e)) {
                this._mouseStarted = (this.mouseStart(this._mouseDownEvent, e) !== false);
                (this._mouseStarted ? this.mouseDrag(e) : this.mouseUp(e));
            }
            return !this._mouseStarted;
        },
        mouseUp: function (e) {
            $(document).unbind('mousemove.' + this.widgetName, this._mouseMoveDelegate).unbind('mouseup.' + this.widgetName, this._mouseUpDelegate);
            if (this._mouseStarted) {
                this._mouseStarted = false;
                this.mouseStop(e);
            }
            return false;
        },
        mouseDistanceMet: function (e) {
            return (Math.max(Math.abs(this._mouseDownEvent.pageX - e.pageX), Math.abs(this._mouseDownEvent.pageY - e.pageY)) >= this.options.distance);
        },
        mouseDelayMet: function (e) {
            return this._mouseDelayMet;
        },
        mouseStart: function (e) {},
        mouseDrag: function (e) {},
        mouseStop: function (e) {},
        mouseCapture: function (e) {
            return true;
        }
    };
    $.ui.mouse.defaults = {
        cancel: null,
        distance: 1,
        delay: 0
    };
})(jQuery);
(function ($) {
    $.widget("ui.draggable", $.extend({}, $.ui.mouse, {
        init: function () {
            var o = this.options;
            if (o.helper == 'original' && !(/(relative|absolute|fixed)/).test(this.element.css('position'))) this.element.css('position', 'relative');
            this.element.addClass('ui-draggable');
            (o.disabled && this.element.addClass('ui-draggable-disabled'));
            this.mouseInit();
        },
        mouseStart: function (e) {
            var o = this.options;
            if (this.helper || o.disabled || $(e.target).is('.ui-resizable-handle')) return false;
            var handle = !this.options.handle || !$(this.options.handle, this.element).length ? true : false;
            $(this.options.handle, this.element).find("*").andSelf().each(function () {
                if (this == e.target) handle = true;
            });
            if (!handle) return false;
            if ($.ui.ddmanager) $.ui.ddmanager.current = this;
            this.helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [e])) : (o.helper == 'clone' ? this.element.clone() : this.element);
            if (!this.helper.parents('body').length) this.helper.appendTo((o.appendTo == 'parent' ? this.element[0].parentNode : o.appendTo));
            if (this.helper[0] != this.element[0] && !(/(fixed|absolute)/).test(this.helper.css("position"))) this.helper.css("position", "absolute");
            this.margins = {
                left: (parseInt(this.element.css("marginLeft"), 10) || 0),
                top: (parseInt(this.element.css("marginTop"), 10) || 0)
            };
            this.cssPosition = this.helper.css("position");
            this.offset = this.element.offset();
            this.offset = {
                top: this.offset.top - this.margins.top,
                left: this.offset.left - this.margins.left
            };
            this.offset.click = {
                left: e.pageX - this.offset.left,
                top: e.pageY - this.offset.top
            };
            this.offsetParent = this.helper.offsetParent();
            var po = this.offsetParent.offset();
            if (this.offsetParent[0] == document.body && $.browser.mozilla) po = {
                top: 0,
                left: 0
            };
            this.offset.parent = {
                top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"), 10) || 0),
                left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"), 10) || 0)
            };
            var p = this.element.position();
            this.offset.relative = this.cssPosition == "relative" ? {
                top: p.top - (parseInt(this.helper.css("top"), 10) || 0) + this.offsetParent[0].scrollTop,
                left: p.left - (parseInt(this.helper.css("left"), 10) || 0) + this.offsetParent[0].scrollLeft
            } : {
                top: 0,
                left: 0
            };
            this.originalPosition = this.generatePosition(e);
            this.helperProportions = {
                width: this.helper.outerWidth(),
                height: this.helper.outerHeight()
            };
            if (o.cursorAt) {
                if (o.cursorAt.left != undefined) this.offset.click.left = o.cursorAt.left + this.margins.left;
                if (o.cursorAt.right != undefined) this.offset.click.left = this.helperProportions.width - o.cursorAt.right + this.margins.left;
                if (o.cursorAt.top != undefined) this.offset.click.top = o.cursorAt.top + this.margins.top;
                if (o.cursorAt.bottom != undefined) this.offset.click.top = this.helperProportions.height - o.cursorAt.bottom + this.margins.top;
            }
            if (o.containment) {
                if (o.containment == 'parent') o.containment = this.helper[0].parentNode;
                if (o.containment == 'document' || o.containment == 'window') this.containment = [0 - this.offset.relative.left - this.offset.parent.left, 0 - this.offset.relative.top - this.offset.parent.top, $(o.containment == 'document' ? document : window).width() - this.offset.relative.left - this.offset.parent.left - this.helperProportions.width - this.margins.left - (parseInt(this.element.css("marginRight"), 10) || 0), ($(o.containment == 'document' ? document : window).height() || document.body.parentNode.scrollHeight) - this.offset.relative.top - this.offset.parent.top - this.helperProportions.height - this.margins.top - (parseInt(this.element.css("marginBottom"), 10) || 0)];
                if (! (/^(document|window|parent)$/).test(o.containment)) {
                    var ce = $(o.containment)[0];
                    var co = $(o.containment).offset();
                    this.containment = [co.left + (parseInt($(ce).css("borderLeftWidth"), 10) || 0) - this.offset.relative.left - this.offset.parent.left, co.top + (parseInt($(ce).css("borderTopWidth"), 10) || 0) - this.offset.relative.top - this.offset.parent.top, co.left + Math.max(ce.scrollWidth, ce.offsetWidth) - (parseInt($(ce).css("borderLeftWidth"), 10) || 0) - this.offset.relative.left - this.offset.parent.left - this.helperProportions.width - this.margins.left - (parseInt(this.element.css("marginRight"), 10) || 0), co.top + Math.max(ce.scrollHeight, ce.offsetHeight) - (parseInt($(ce).css("borderTopWidth"), 10) || 0) - this.offset.relative.top - this.offset.parent.top - this.helperProportions.height - this.margins.top - (parseInt(this.element.css("marginBottom"), 10) || 0)];
                }
            }
            this.propagate("start", e);
            this.helperProportions = {
                width: this.helper.outerWidth(),
                height: this.helper.outerHeight()
            };
            if ($.ui.ddmanager && !o.dropBehaviour) $.ui.ddmanager.prepareOffsets(this, e);
            this.helper.addClass("ui-draggable-dragging");
            this.mouseDrag(e);
            return true;
        },
        convertPositionTo: function (d, pos) {
            if (!pos) pos = this.position;
            var mod = d == "absolute" ? 1 : -1;
            return {
                top: (pos.top + this.offset.relative.top * mod + this.offset.parent.top * mod - (this.cssPosition == "fixed" || (this.cssPosition == "absolute" && this.offsetParent[0] == document.body) ? 0 : this.offsetParent[0].scrollTop) * mod + (this.cssPosition == "fixed" ? $(document).scrollTop() : 0) * mod + this.margins.top * mod),
                left: (pos.left + this.offset.relative.left * mod + this.offset.parent.left * mod - (this.cssPosition == "fixed" || (this.cssPosition == "absolute" && this.offsetParent[0] == document.body) ? 0 : this.offsetParent[0].scrollLeft) * mod + (this.cssPosition == "fixed" ? $(document).scrollLeft() : 0) * mod + this.margins.left * mod)
            };
        },
        generatePosition: function (e) {
            var o = this.options;
            var position = {
                top: (e.pageY - this.offset.click.top - this.offset.relative.top - this.offset.parent.top + (this.cssPosition == "fixed" || (this.cssPosition == "absolute" && this.offsetParent[0] == document.body) ? 0 : this.offsetParent[0].scrollTop) - (this.cssPosition == "fixed" ? $(document).scrollTop() : 0)),
                left: (e.pageX - this.offset.click.left - this.offset.relative.left - this.offset.parent.left + (this.cssPosition == "fixed" || (this.cssPosition == "absolute" && this.offsetParent[0] == document.body) ? 0 : this.offsetParent[0].scrollLeft) - (this.cssPosition == "fixed" ? $(document).scrollLeft() : 0))
            };
            if (!this.originalPosition) return position;
            if (this.containment) {
                if (position.left < this.containment[0]) position.left = this.containment[0];
                if (position.top < this.containment[1]) position.top = this.containment[1];
                if (position.left > this.containment[2]) position.left = this.containment[2];
                if (position.top > this.containment[3]) position.top = this.containment[3];
            }
            if (o.grid) {
                var top = this.originalPosition.top + Math.round((position.top - this.originalPosition.top) / o.grid[1]) * o.grid[1];
                position.top = this.containment ? (!(top < this.containment[1] || top > this.containment[3]) ? top : (!(top < this.containment[1]) ? top - o.grid[1] : top + o.grid[1])) : top;
                var left = this.originalPosition.left + Math.round((position.left - this.originalPosition.left) / o.grid[0]) * o.grid[0];
                position.left = this.containment ? (!(left < this.containment[0] || left > this.containment[2]) ? left : (!(left < this.containment[0]) ? left - o.grid[0] : left + o.grid[0])) : left;
            }
            return position;
        },
        mouseDrag: function (e) {
            this.position = this.generatePosition(e);
            this.positionAbs = this.convertPositionTo("absolute");
            this.position = this.propagate("drag", e) || this.position;
            if (!this.options.axis || this.options.axis != "y") this.helper[0].style.left = this.position.left + 'px';
            if (!this.options.axis || this.options.axis != "x") this.helper[0].style.top = this.position.top + 'px';
            if ($.ui.ddmanager) $.ui.ddmanager.drag(this, e);
            return false;
        },
        mouseStop: function (e) {
            var dropped = false;
            if ($.ui.ddmanager && !this.options.dropBehaviour) var dropped = $.ui.ddmanager.drop(this, e);
            if ((this.options.revert == "invalid" && !dropped) || (this.options.revert == "valid" && dropped) || this.options.revert === true) {
                var self = this;
                $(this.helper).animate(this.originalPosition, parseInt(this.options.revert, 10) || 500, function () {
                    self.propagate("stop", e);
                    self.clear();
                });
            } else {
                this.propagate("stop", e);
                this.clear();
            }
            return false;
        },
        clear: function () {
            this.helper.removeClass("ui-draggable-dragging");
            if (this.options.helper != 'original' && !this.cancelHelperRemoval) this.helper.remove();
            this.helper = null;
            this.cancelHelperRemoval = false;
        },
        plugins: {},
        uiHash: function (e) {
            return {
                helper: this.helper,
                position: this.position,
                absolutePosition: this.positionAbs,
                options: this.options
            };
        },
        propagate: function (n, e) {
            $.ui.plugin.call(this, n, [e, this.uiHash()]);
            if (n == "drag") this.positionAbs = this.convertPositionTo("absolute");
            return this.element.triggerHandler(n == "drag" ? n : "drag" + n, [e, this.uiHash()], this.options[n]);
        },
        destroy: function () {
            if (!this.element.data('draggable')) return;
            this.element.removeData("draggable").unbind(".draggable").removeClass('ui-draggable');
            this.mouseDestroy();
        }
    }));
    $.extend($.ui.draggable, {
        defaults: {
            appendTo: "parent",
            axis: false,
            cancel: ":input",
            delay: 0,
            distance: 1,
            helper: "original"
        }
    });
    $.ui.plugin.add("draggable", "cursor", {
        start: function (e, ui) {
            var t = $('body');
            if (t.css("cursor")) ui.options._cursor = t.css("cursor");
            t.css("cursor", ui.options.cursor);
        },
        stop: function (e, ui) {
            if (ui.options._cursor) $('body').css("cursor", ui.options._cursor);
        }
    });
    $.ui.plugin.add("draggable", "zIndex", {
        start: function (e, ui) {
            var t = $(ui.helper);
            if (t.css("zIndex")) ui.options._zIndex = t.css("zIndex");
            t.css('zIndex', ui.options.zIndex);
        },
        stop: function (e, ui) {
            if (ui.options._zIndex) $(ui.helper).css('zIndex', ui.options._zIndex);
        }
    });
    $.ui.plugin.add("draggable", "opacity", {
        start: function (e, ui) {
            var t = $(ui.helper);
            if (t.css("opacity")) ui.options._opacity = t.css("opacity");
            t.css('opacity', ui.options.opacity);
        },
        stop: function (e, ui) {
            if (ui.options._opacity) $(ui.helper).css('opacity', ui.options._opacity);
        }
    });
    $.ui.plugin.add("draggable", "iframeFix", {
        start: function (e, ui) {
            $(ui.options.iframeFix === true ? "iframe" : ui.options.iframeFix).each(function () {
                $('<div class="ui-draggable-iframeFix" style="background: #fff;"></div>').css({
                    width: this.offsetWidth + "px",
                    height: this.offsetHeight + "px",
                    position: "absolute",
                    opacity: "0.001",
                    zIndex: 1000
                }).css($(this).offset()).appendTo("body");
            });
        },
        stop: function (e, ui) {
            $("div.DragDropIframeFix").each(function () {
                this.parentNode.removeChild(this);
            });
        }
    });
    $.ui.plugin.add("draggable", "scroll", {
        start: function (e, ui) {
            var o = ui.options;
            var i = $(this).data("draggable");
            o.scrollSensitivity = o.scrollSensitivity || 20;
            o.scrollSpeed = o.scrollSpeed || 20;
            i.overflowY = function (el) {
                do {
                    if (/auto|scroll/.test(el.css('overflow')) || (/auto|scroll/).test(el.css('overflow-y'))) return el;
                    el = el.parent();
                } while (el[0].parentNode);
                return $(document);
            }(this);
            i.overflowX = function (el) {
                do {
                    if (/auto|scroll/.test(el.css('overflow')) || (/auto|scroll/).test(el.css('overflow-x'))) return el;
                    el = el.parent();
                } while (el[0].parentNode);
                return $(document);
            }(this);
            if (i.overflowY[0] != document && i.overflowY[0].tagName != 'HTML') i.overflowYOffset = i.overflowY.offset();
            if (i.overflowX[0] != document && i.overflowX[0].tagName != 'HTML') i.overflowXOffset = i.overflowX.offset();
        },
        drag: function (e, ui) {
            var o = ui.options;
            var i = $(this).data("draggable");
            if (i.overflowY[0] != document && i.overflowY[0].tagName != 'HTML') {
                if ((i.overflowYOffset.top + i.overflowY[0].offsetHeight) - e.pageY < o.scrollSensitivity) i.overflowY[0].scrollTop = i.overflowY[0].scrollTop + o.scrollSpeed;
                if (e.pageY - i.overflowYOffset.top < o.scrollSensitivity) i.overflowY[0].scrollTop = i.overflowY[0].scrollTop - o.scrollSpeed;
            } else {
                if (e.pageY - $(document).scrollTop() < o.scrollSensitivity) $(document).scrollTop($(document).scrollTop() - o.scrollSpeed);
                if ($(window).height() - (e.pageY - $(document).scrollTop()) < o.scrollSensitivity) $(document).scrollTop($(document).scrollTop() + o.scrollSpeed);
            }
            if (i.overflowX[0] != document && i.overflowX[0].tagName != 'HTML') {
                if ((i.overflowXOffset.left + i.overflowX[0].offsetWidth) - e.pageX < o.scrollSensitivity) i.overflowX[0].scrollLeft = i.overflowX[0].scrollLeft + o.scrollSpeed;
                if (e.pageX - i.overflowXOffset.left < o.scrollSensitivity) i.overflowX[0].scrollLeft = i.overflowX[0].scrollLeft - o.scrollSpeed;
            } else {
                if (e.pageX - $(document).scrollLeft() < o.scrollSensitivity) $(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed);
                if ($(window).width() - (e.pageX - $(document).scrollLeft()) < o.scrollSensitivity) $(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed);
            }
        }
    });
    $.ui.plugin.add("draggable", "snap", {
        start: function (e, ui) {
            var inst = $(this).data("draggable");
            inst.snapElements = [];
            $(ui.options.snap === true ? '.ui-draggable' : ui.options.snap).each(function () {
                var $t = $(this);
                var $o = $t.offset();
                if (this != inst.element[0]) inst.snapElements.push({
                    item: this,
                    width: $t.outerWidth(),
                    height: $t.outerHeight(),
                    top: $o.top,
                    left: $o.left
                });
            });
        },
        drag: function (e, ui) {
            var inst = $(this).data("draggable");
            var d = ui.options.snapTolerance || 20;
            var x1 = ui.absolutePosition.left,
                x2 = x1 + inst.helperProportions.width,
                y1 = ui.absolutePosition.top,
                y2 = y1 + inst.helperProportions.height;
            for (var i = inst.snapElements.length - 1; i >= 0; i--) {
                var l = inst.snapElements[i].left,
                    r = l + inst.snapElements[i].width,
                    t = inst.snapElements[i].top,
                    b = t + inst.snapElements[i].height;
                if (! ((l - d < x1 && x1 < r + d && t - d < y1 && y1 < b + d) || (l - d < x1 && x1 < r + d && t - d < y2 && y2 < b + d) || (l - d < x2 && x2 < r + d && t - d < y1 && y1 < b + d) || (l - d < x2 && x2 < r + d && t - d < y2 && y2 < b + d))) continue;
                if (ui.options.snapMode != 'inner') {
                    var ts = Math.abs(t - y2) <= 20;
                    var bs = Math.abs(b - y1) <= 20;
                    var ls = Math.abs(l - x2) <= 20;
                    var rs = Math.abs(r - x1) <= 20;
                    if (ts) ui.position.top = inst.convertPositionTo("relative", {
                        top: t - inst.helperProportions.height,
                        left: 0
                    }).top;
                    if (bs) ui.position.top = inst.convertPositionTo("relative", {
                        top: b,
                        left: 0
                    }).top;
                    if (ls) ui.position.left = inst.convertPositionTo("relative", {
                        top: 0,
                        left: l - inst.helperProportions.width
                    }).left;
                    if (rs) ui.position.left = inst.convertPositionTo("relative", {
                        top: 0,
                        left: r
                    }).left;
                }
                if (ui.options.snapMode != 'outer') {
                    var ts = Math.abs(t - y1) <= 20;
                    var bs = Math.abs(b - y2) <= 20;
                    var ls = Math.abs(l - x1) <= 20;
                    var rs = Math.abs(r - x2) <= 20;
                    if (ts) ui.position.top = inst.convertPositionTo("relative", {
                        top: t,
                        left: 0
                    }).top;
                    if (bs) ui.position.top = inst.convertPositionTo("relative", {
                        top: b - inst.helperProportions.height,
                        left: 0
                    }).top;
                    if (ls) ui.position.left = inst.convertPositionTo("relative", {
                        top: 0,
                        left: l
                    }).left;
                    if (rs) ui.position.left = inst.convertPositionTo("relative", {
                        top: 0,
                        left: r - inst.helperProportions.width
                    }).left;
                }
            };
        }
    });
    $.ui.plugin.add("draggable", "connectToSortable", {
        start: function (e, ui) {
            var inst = $(this).data("draggable");
            inst.sortables = [];
            $(ui.options.connectToSortable).each(function () {
                if ($.data(this, 'sortable')) {
                    var sortable = $.data(this, 'sortable');
                    inst.sortables.push({
                        instance: sortable,
                        shouldRevert: sortable.options.revert
                    });
                    sortable.refreshItems();
                    sortable.propagate("activate", e, inst);
                }
            });
        },
        stop: function (e, ui) {
            var inst = $(this).data("draggable");
            $.each(inst.sortables, function () {
                if (this.instance.isOver) {
                    this.instance.isOver = 0;
                    inst.cancelHelperRemoval = true;
                    this.instance.cancelHelperRemoval = false;
                    if (this.shouldRevert) this.instance.options.revert = true;
                    this.instance.mouseStop(e);
                    this.instance.element.triggerHandler("sortreceive", [e, $.extend(this.instance.ui(), {
                        sender: inst.element
                    })], this.instance.options["receive"]);
                    this.instance.options.helper = this.instance.options._helper;
                } else {
                    this.instance.propagate("deactivate", e, inst);
                }
            });
        },
        drag: function (e, ui) {
            var inst = $(this).data("draggable"),
                self = this;
            var checkPos = function (o) {
                var l = o.left,
                    r = l + o.width,
                    t = o.top,
                    b = t + o.height;
                return (l < (this.positionAbs.left + this.offset.click.left) && (this.positionAbs.left + this.offset.click.left) < r && t < (this.positionAbs.top + this.offset.click.top) && (this.positionAbs.top + this.offset.click.top) < b);
            };
            $.each(inst.sortables, function (i) {
                if (checkPos.call(inst, this.instance.containerCache)) {
                    if (!this.instance.isOver) {
                        this.instance.isOver = 1;
                        this.instance.currentItem = $(self).clone().appendTo(this.instance.element).data("sortable-item", true);
                        this.instance.options._helper = this.instance.options.helper;
                        this.instance.options.helper = function () {
                            return ui.helper[0];
                        };
                        e.target = this.instance.currentItem[0];
                        this.instance.mouseCapture(e, true);
                        this.instance.mouseStart(e, true, true);
                        this.instance.offset.click.top = inst.offset.click.top;
                        this.instance.offset.click.left = inst.offset.click.left;
                        this.instance.offset.parent.left -= inst.offset.parent.left - this.instance.offset.parent.left;
                        this.instance.offset.parent.top -= inst.offset.parent.top - this.instance.offset.parent.top;
                        inst.propagate("toSortable", e);
                    }
                    if (this.instance.currentItem) this.instance.mouseDrag(e);
                } else {
                    if (this.instance.isOver) {
                        this.instance.isOver = 0;
                        this.instance.cancelHelperRemoval = true;
                        this.instance.options.revert = false;
                        this.instance.mouseStop(e, true);
                        this.instance.options.helper = this.instance.options._helper;
                        this.instance.currentItem.remove();
                        if (this.instance.placeholder) this.instance.placeholder.remove();
                        inst.propagate("fromSortable", e);
                    }
                };
            });
        }
    });
    $.ui.plugin.add("draggable", "stack", {
        start: function (e, ui) {
            var group = $.makeArray($(ui.options.stack.group)).sort(function (a, b) {
                return (parseInt($(a).css("zIndex"), 10) || ui.options.stack.min) - (parseInt($(b).css("zIndex"), 10) || ui.options.stack.min);
            });
            $(group).each(function (i) {
                this.style.zIndex = ui.options.stack.min + i;
            });
            this[0].style.zIndex = ui.options.stack.min + group.length;
        }
    });
})(jQuery);