/*
 * jQuery UI 1.7.2
 *
 * Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * http://docs.jquery.com/UI
 */
;
jQuery.ui ||
(function($){

    var _remove = $.fn.remove, isFF2 = $.browser.mozilla && (parseFloat($.browser.version) < 1.9);
    
    //Helper functions and ui object
    $.ui = {
        version: "1.7.2",
        
        // $.ui.plugin is deprecated.  Use the proxy pattern instead.
        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 || !instance.element[0].parentNode) {
                    return;
                }
                
                for (var i = 0; i < set.length; i++) {
                    if (instance.options[set[i][0]]) {
                        set[i][1].apply(instance.element, args);
                    }
                }
            }
        },
        
        contains: function(a, b){
            return document.compareDocumentPosition ? a.compareDocumentPosition(b) & 16 : a !== b && a.contains(b);
        },
        
        hasScroll: function(el, a){
        
            //If overflow is hidden, the element might have extra content, but the user wants to hide it
            if ($(el).css('overflow') == 'hidden') {
                return false;
            }
            
            var scroll = (a && a == 'left') ? 'scrollLeft' : 'scrollTop', has = false;
            
            if (el[scroll] > 0) {
                return true;
            }
            
            // TODO: determine which cases actually cause this to happen
            // if the element doesn't have the scroll set, see if it's possible to
            // set the scroll
            el[scroll] = 1;
            has = (el[scroll] > 0);
            el[scroll] = 0;
            return has;
        },
        
        isOverAxis: function(x, reference, size){
            //Determines when x coordinate is over "b" element axis
            return (x > reference) && (x < (reference + size));
        },
        
        isOver: function(y, x, top, left, height, width){
            //Determines when x, y coordinates is over "b" element
            return $.ui.isOverAxis(y, top, height) && $.ui.isOverAxis(x, left, width);
        },
        
        keyCode: {
            BACKSPACE: 8,
            CAPS_LOCK: 20,
            COMMA: 188,
            CONTROL: 17,
            DELETE: 46,
            DOWN: 40,
            END: 35,
            ENTER: 13,
            ESCAPE: 27,
            HOME: 36,
            INSERT: 45,
            LEFT: 37,
            NUMPAD_ADD: 107,
            NUMPAD_DECIMAL: 110,
            NUMPAD_DIVIDE: 111,
            NUMPAD_ENTER: 108,
            NUMPAD_MULTIPLY: 106,
            NUMPAD_SUBTRACT: 109,
            PAGE_DOWN: 34,
            PAGE_UP: 33,
            PERIOD: 190,
            RIGHT: 39,
            SHIFT: 16,
            SPACE: 32,
            TAB: 9,
            UP: 38
        }
    };
    
    // WAI-ARIA normalization
    if (isFF2) {
        var attr = $.attr, removeAttr = $.fn.removeAttr, ariaNS = "http://www.w3.org/2005/07/aaa", ariaState = /^aria-/, ariaRole = /^wairole:/;
        
        $.attr = function(elem, name, value){
            var set = value !== undefined;
            
            return (name == 'role' ? (set ? attr.call(this, elem, name, "wairole:" + value) : (attr.apply(this, arguments) || "").replace(ariaRole, "")) : (ariaState.test(name) ? (set ? elem.setAttributeNS(ariaNS, name.replace(ariaState, "aaa:"), value) : attr.call(this, elem, name.replace(ariaState, "aaa:"))) : attr.apply(this, arguments)));
        };
        
        $.fn.removeAttr = function(name){
            return (ariaState.test(name) ? this.each(function(){
                this.removeAttributeNS(ariaNS, name.replace(ariaState, ""));
            }) : removeAttr.call(this, name));
        };
    }
    
    //jQuery plugins
    $.fn.extend({
        remove: function(){
            // Safari has a native remove event which actually removes DOM elements,
            // so we have to use triggerHandler instead of trigger (#3037).
            $("*", this).add(this).each(function(){
                $(this).triggerHandler("remove");
            });
            return _remove.apply(this, arguments);
        },
        
        enableSelection: function(){
            return this.attr('unselectable', 'off').css('MozUserSelect', '').unbind('selectstart.ui');
        },
        
        disableSelection: function(){
            return this.attr('unselectable', 'on').css('MozUserSelect', 'none').bind('selectstart.ui', function(){
                return false;
            });
        },
        
        scrollParent: function(){
            var scrollParent;
            if (($.browser.msie && (/(static|relative)/).test(this.css('position'))) || (/absolute/).test(this.css('position'))) {
                scrollParent = this.parents().filter(function(){
                    return (/(relative|absolute|fixed)/).test($.curCSS(this, 'position', 1)) && (/(auto|scroll)/).test($.curCSS(this, 'overflow', 1) + $.curCSS(this, 'overflow-y', 1) + $.curCSS(this, 'overflow-x', 1));
                }).eq(0);
            }
            else {
                scrollParent = this.parents().filter(function(){
                    return (/(auto|scroll)/).test($.curCSS(this, 'overflow', 1) + $.curCSS(this, 'overflow-y', 1) + $.curCSS(this, 'overflow-x', 1));
                }).eq(0);
            }
            
            return (/fixed/).test(this.css('position')) || !scrollParent.length ? $(document) : scrollParent;
        }
    });
    
    
    //Additional selectors
    $.extend($.expr[':'], {
        data: function(elem, i, match){
            return !!$.data(elem, match[3]);
        },
        
        focusable: function(element){
            var nodeName = element.nodeName.toLowerCase(), tabIndex = $.attr(element, 'tabindex');
            return (/input|select|textarea|button|object/.test(nodeName) ? !element.disabled : 'a' == nodeName || 'area' == nodeName ? element.href || !isNaN(tabIndex) : !isNaN(tabIndex))            // the element and all of its ancestors must be visible
            // the browser may report that the area is hidden
            &&
            !$(element)['area' == nodeName ? 'parents' : 'closest'](':hidden').length;
        },
        
        tabbable: function(element){
            var tabIndex = $.attr(element, 'tabindex');
            return (isNaN(tabIndex) || tabIndex >= 0) && $(element).is(':focusable');
        }
    });
    
    
    // $.widget is a factory to create jQuery plugins
    // taking some boilerplate code out of the plugin code
    function getter(namespace, plugin, method, args){
        function getMethods(type){
            var methods = $[namespace][plugin][type] || [];
            return (typeof methods == 'string' ? methods.split(/,?\s+/) : methods);
        }
        
        var methods = getMethods('getter');
        if (args.length == 1 && typeof args[0] == 'string') {
            methods = methods.concat(getMethods('getterSetter'));
        }
        return ($.inArray(method, methods) != -1);
    }
    
    $.widget = function(name, prototype){
        var namespace = name.split(".")[0];
        name = name.split(".")[1];
        
        // create plugin method
        $.fn[name] = function(options){
            var isMethodCall = (typeof options == 'string'), args = Array.prototype.slice.call(arguments, 1);
            
            // prevent calls to internal methods
            if (isMethodCall && options.substring(0, 1) == '_') {
                return this;
            }
            
            // handle getter methods
            if (isMethodCall && getter(namespace, name, options, args)) {
                var instance = $.data(this[0], name);
                return (instance ? instance[options].apply(instance, args) : undefined);
            }
            
            // handle initialization and non-getter methods
            return this.each(function(){
                var instance = $.data(this, name);
                
                // constructor
                (!instance && !isMethodCall &&
                $.data(this, name, new $[namespace][name](this, options))._init());
                
                // method call
                (instance && isMethodCall && $.isFunction(instance[options]) &&
                instance[options].apply(instance, args));
            });
        };
        
        // create widget constructor
        $[namespace] = $[namespace] ||
        {};
        $[namespace][name] = function(element, options){
            var self = this;
            
            this.namespace = namespace;
            this.widgetName = name;
            this.widgetEventPrefix = $[namespace][name].eventPrefix || name;
            this.widgetBaseClass = namespace + '-' + name;
            
            this.options = $.extend({}, $.widget.defaults, $[namespace][name].defaults, $.metadata && $.metadata.get(element)[name], options);
            
            this.element = $(element).bind('setData.' + name, function(event, key, value){
                if (event.target == element) {
                    return self._setData(key, value);
                }
            }).bind('getData.' + name, function(event, key){
                if (event.target == element) {
                    return self._getData(key);
                }
            }).bind('remove', function(){
                return self.destroy();
            });
        };
        
        // add widget prototype
        $[namespace][name].prototype = $.extend({}, $.widget.prototype, prototype);
        
        // TODO: merge getter and getterSetter properties from widget prototype
        // and plugin prototype
        $[namespace][name].getterSetter = 'option';
    };
    
    $.widget.prototype = {
        _init: function(){
        },
        destroy: function(){
            this.element.removeData(this.widgetName).removeClass(this.widgetBaseClass + '-disabled' + ' ' + this.namespace + '-state-disabled').removeAttr('aria-disabled');
        },
        
        option: function(key, value){
            var options = key, self = this;
            
            if (typeof key == "string") {
                if (value === undefined) {
                    return this._getData(key);
                }
                options = {};
                options[key] = value;
            }
            
            $.each(options, function(key, value){
                self._setData(key, value);
            });
        },
        _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' + ' ' +
                this.namespace +
                '-state-disabled').attr("aria-disabled", value);
            }
        },
        
        enable: function(){
            this._setData('disabled', false);
        },
        disable: function(){
            this._setData('disabled', true);
        },
        
        _trigger: function(type, event, data){
            var callback = this.options[type], eventName = (type == this.widgetEventPrefix ? type : this.widgetEventPrefix + type);
            
            event = $.Event(event);
            event.type = eventName;
            
            // copy original event properties over to the new event
            // this would happen if we could call $.event.fix instead of $.Event
            // but we don't have a way to force an event to be fixed multiple times
            if (event.originalEvent) {
                for (var i = $.event.props.length, prop; i;) {
                    prop = $.event.props[--i];
                    event[prop] = event.originalEvent[prop];
                }
            }
            
            this.element.trigger(event, data);
            
            return !($.isFunction(callback) && callback.call(this.element[0], event, data) === false ||
            event.isDefaultPrevented());
        }
    };
    
    $.widget.defaults = {
        disabled: false
    };
    
    
    /** Mouse Interaction Plugin **/
    
    $.ui.mouse = {
        _mouseInit: function(){
            var self = this;
            
            this.element.bind('mousedown.' + this.widgetName, function(event){
                return self._mouseDown(event);
            }).bind('click.' + this.widgetName, function(event){
                if (self._preventClickEvent) {
                    self._preventClickEvent = false;
                    event.stopImmediatePropagation();
                    return false;
                }
            });
            
            // Prevent text selection in IE
            if ($.browser.msie) {
                this._mouseUnselectable = this.element.attr('unselectable');
                this.element.attr('unselectable', 'on');
            }
            
            this.started = false;
        },
        
        // TODO: make sure destroying one instance of mouse doesn't mess with
        // other instances of mouse
        _mouseDestroy: function(){
            this.element.unbind('.' + this.widgetName);
            
            // Restore text selection in IE
            ($.browser.msie &&
            this.element.attr('unselectable', this._mouseUnselectable));
        },
        
        _mouseDown: function(event){
            // don't let more than one widget handle mouseStart
            // TODO: figure out why we have to use originalEvent
            event.originalEvent = event.originalEvent ||
            {};
            if (event.originalEvent.mouseHandled) {
                return;
            }
            
            // we may have missed mouseup (out of window)
            (this._mouseStarted && this._mouseUp(event));
            
            this._mouseDownEvent = event;
            
            var self = this, btnIsLeft = (event.which == 1), elIsCancel = (typeof this.options.cancel == "string" ? $(event.target).parents().add(event.target).filter(this.options.cancel).length : false);
            if (!btnIsLeft || elIsCancel || !this._mouseCapture(event)) {
                return true;
            }
            
            this.mouseDelayMet = !this.options.delay;
            if (!this.mouseDelayMet) {
                this._mouseDelayTimer = setTimeout(function(){
                    self.mouseDelayMet = true;
                }, this.options.delay);
            }
            
            if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {
                this._mouseStarted = (this._mouseStart(event) !== false);
                if (!this._mouseStarted) {
                    event.preventDefault();
                    return true;
                }
            }
            
            // these delegates are required to keep context
            this._mouseMoveDelegate = function(event){
                return self._mouseMove(event);
            };
            this._mouseUpDelegate = function(event){
                return self._mouseUp(event);
            };
            $(document).bind('mousemove.' + this.widgetName, this._mouseMoveDelegate).bind('mouseup.' + this.widgetName, this._mouseUpDelegate);
            
            // preventDefault() is used to prevent the selection of text here -
            // however, in Safari, this causes select boxes not to be selectable
            // anymore, so this fix is needed
            ($.browser.safari || event.preventDefault());
            
            event.originalEvent.mouseHandled = true;
            return true;
        },
        
        _mouseMove: function(event){
            // IE mouseup check - mouseup happened when mouse was out of window
            if ($.browser.msie && !event.button) {
                return this._mouseUp(event);
            }
            
            if (this._mouseStarted) {
                this._mouseDrag(event);
                return event.preventDefault();
            }
            
            if (this._mouseDistanceMet(event) && this._mouseDelayMet(event)) {
                this._mouseStarted = (this._mouseStart(this._mouseDownEvent, event) !== false);
                (this._mouseStarted ? this._mouseDrag(event) : this._mouseUp(event));
            }
            
            return !this._mouseStarted;
        },
        
        _mouseUp: function(event){
            $(document).unbind('mousemove.' + this.widgetName, this._mouseMoveDelegate).unbind('mouseup.' + this.widgetName, this._mouseUpDelegate);
            
            if (this._mouseStarted) {
                this._mouseStarted = false;
                this._preventClickEvent = (event.target == this._mouseDownEvent.target);
                this._mouseStop(event);
            }
            
            return false;
        },
        
        _mouseDistanceMet: function(event){
            return (Math.max(Math.abs(this._mouseDownEvent.pageX - event.pageX), Math.abs(this._mouseDownEvent.pageY - event.pageY)) >=
            this.options.distance);
        },
        
        _mouseDelayMet: function(event){
            return this.mouseDelayMet;
        },
        
        // These are placeholder methods, to be overriden by extending plugin
        _mouseStart: function(event){
        },
        _mouseDrag: function(event){
        },
        _mouseStop: function(event){
        },
        _mouseCapture: function(event){
            return true;
        }
    };
    
    $.ui.mouse.defaults = {
        cancel: null,
        distance: 1,
        delay: 0
    };
    
})(jQuery);