/** 
* IceMegaMenu Extension for Joomla 1.6 By IceTheme

We have changed some parts from the original javscript code found
below to suit the needs to the MegaMenu sctructure.

We dont reccomend that you upgrade this javascript file directly
from the author as it may not work with the IceMegamenu module.

**/

/**
 * menuMatic 
 * @version 0.68.3 (beta)
 * @author Jason J. Jaeger | greengeckodesign.com
 * @copyright 2008 Jason John Jaeger
 * @license MIT-style License
 *            Permission is hereby granted, free of charge, to any person obtaining a copy
 *            of this software and associated documentation files (the "Software"), to deal
 *            in the Software without restriction, including without limitation the rights
 *            to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *            copies of the Software, and to permit persons to whom the Software is
 *            furnished to do so, subject to the following conditions:
 *    
 *            The above copyright notice and this permission notice shall be included in
 *            all copies or substantial portions of the Software.
 *    
 *            THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *            IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *            FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *            AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *            LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 *            OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 *            THE SOFTWARE.
 *    
 *  @changeLog_________________________________________________________________________________
 *  
 *  Nov  15th 2008
 *  JJJ - incremented version to 0.68.3
 *      - Fixed bug which occured when ol was used instead of ul.. was because you cannot use selectors such 
 *          as 'ul.icesubMenu, ol.icesubMenu' with getParent() and getNext() despite the mootool documentation saying "if Selectors 
 *          is included, a full CSS selector can be passed."
 *  
 *  Nov 4th 2008
 *  JJJ - incremented version to 0.68.2
 *      - Removed extranious comma which threw an error in IE. (Thanks to Robert S. for catching that)
 *      - Added check to change the opacity to 99.9 if it is over 99 due to the fact that 
 *          setting the opaicty to 100% in safari caused misc strange behaviour (thanks to Roland Barker 
 *          at xnau webdesign for reporting this one)
 *  
 *  Nov 3rd 2008
 *  JJJ - Renamed menuWidth option to stretchMainMenu and made it work much quicker
 *  
 *  Nov 2nd 2008
 *  JJJ - Finished adding several callback functions
 *      - Added fixHasLayoutBug option
 *  
 *  Oct 4th 2008
 *  JJJ - Continued to go through code to optimize and clean it up
 *      - Added center option
 *  
 *  Sept 28th 2008
 *  JJJ - Incremented version to 0.68
 *      - Began optimizing & better commenting code
 *  
 *  Sept 16th 2008
 *  JJJ - Incremented version to 0.67
 *      - Specifically set each submenu z-index on show, incrementing each time. Set z-index back to 1 on hide.
 *  
 *  Sept 14th 2008
 *  JJJ - Added bottom edge detection and redirection (if bottom of subsequent submenu is lower than the scrollheight of the body)
 *  
 *  Sept 10th 2008
 *  JJJ - Did a google search for MooMenu and it looks like that name is already being used, so I must reluctently change the name.
 *          The name I have chose to move forward with is: MenuMatic.
 *  
 *  Sept 8th 2008
 *  JJJ - Incremented version to 0.66
 *      - Fixed IE bug whiched caused some events to be incorrectly attached to parent buttons causing sub submenus to not open
 *        correctly when transitions are enabled. This error was introduced in 0.65. 
 *  
 *  August 10th 2008
 *  JJJ - Incremented verion to 0.65
 *      - Fixed bug with edge detection and redirection
 *      - Improved javascript and CSS to assure the submenus will always be on top
 *      - Improved edge detection and redirection logic
 *      - Added subMenusContainerId option so that if you have multiple MooMenu instances on a page they can be styled differently
 *  
 *  May 7th 2008
 *  JJJ - Incremented version to 0.64
 *      - Fixed bug with that occured when firing events
 *  
 *  April 28th 2008:
 *  JJJ - Incremented version to 0.63
 *      - Added killDivider option
 *      - Removed focus on hover since it adds browser default dotted outline
 *      - Changed menuWidth option to use actual width of nav element (so it can be set in css) instead of a width set in javascript
 *  
 *  Feb 17th 2008:
 *  JJJ - Incremented version to 0.62
 *      - Added mmbClassName and mmbFocusedClassName options to allow morphing of main menu btns
 *  
 *  Feb 16th 2008:
 *  JJJ - Incremented version to 0.61
 *      - Made changes to options syntax. 
 *      - Improved keyboard accessability to take into account a menu's orientation, and its x and y direction when using arrow keys
 *      - Added matchWidthMode option.
 *  
 *  Feb 14th 2008:
 *  JJJ - Incremented version to 0.60
 *      - Added menuWidth option to simulate a table based layout for the main menu when the orienation is horizontal
 **/


/*
 * To Do:
 * 
 * 1. Make screencast tutorials
 * 
 * 2. Add more examples to website
 * 
 * 3. Clean up/optimize CSS / make easier to edit 
 * 
 * 4. Make online generator 
 * 
 * 5. Add rounded corners option
 * 
 * 6. Add drop shadow option
 * 
 * 7. Add sound integration 
 * 
 */
var MenuMatic = new Class({
    Implements: Options,
    options: {
        id: 'nav',//the id of the main menu (ul or ol)
        subMenusContainerId:'subMenusContainer',//id of the container div that will be generated to hold the submenus 
        
        //subMenu behavior
        effect: 'slide & fade',// 'slide', 'fade', 'slide & fade', or  null
        duration: 600,//duration of the effect in milliseconds
        physics: Fx.Transitions.Pow.easeOut,//how the effect behaves
        hideDelay: 1000,//in milliseconds, how long you have after moving your mouse off of the submenus before they dissapear
        
        //layout
        stretchMainMenu:false,//stretch main menu btn widths to fit within the width {set in the css} of the parent UL or OL
        matchWidthMode:false,//initial submenus match their parent button's width
        orientation: 'horizontal',//horizontal or vertical
        direction:{    x: 'right',    y: 'down' },//for submenus ( relative to the parent button )left or right, up or down
        tweakInitial:{ x:0, y:0    },//if you need to tweak the placement of the initial submenus
        tweakSubsequent:{ x:0, y:0 },//if you need to tweak the placement of the subsequent submenus
        center: false,// will attempt to center main nav element
        
        //dynamic style
        opacity: 95,//of the submenus
        mmbFocusedClassName:null,//main menu button classname, used for morphing to focused state
        mmbClassName:null,//main menu button classname, used for morphing back to original state
        killDivider:null,    
        
        fixHasLayoutBug:false,    
        
        onHideAllSubMenusNow_begin: (function(){}),
        onHideAllSubMenusNow_complete: (function(){}),
        
        onInit_begin: (function(){}),
        onInit_complete: (function(){})        

    },
    
    hideAllMenusTimeout:null,
    allSubMenus:[],
    subMenuZindex:1,
    
    initialize: function(options){
        //if(Browser.Engine.webkit419){return;}        
        this.setOptions(options);
        this.options.onInit_begin();
        if(this.options.opacity > 99){this.options.opacity = 99.9;}
        this.options.opacity = this.options.opacity /100;

        Element.implement({
            getId: function(){
                //If this element does not have an id, give it a unique one
                if(!this.id){ 
                    var uniqueId = this.get('tag') + "-" + $time();
                    while($(uniqueId)){
                        //make sure it is absolutely unique
                        uniqueId = this.get('tag') + "-" + $time();                        
                    }
                    this.id = uniqueId;                        
                }
                return this.id;
            }
        });
        
        //initialize directions
        this.options.direction.x = this.options.direction.x.toLowerCase();
        this.options.direction.y = this.options.direction.y.toLowerCase();
        if(this.options.direction.x === 'right'){
            this.options.direction.xInverse = 'left';
        }else if(this.options.direction.x === 'left'){
            this.options.direction.xInverse = 'right';
        }
        if(this.options.direction.y === 'up'){
            this.options.direction.yInverse = 'down';
        }else if(this.options.direction.y === 'down'){
            this.options.direction.yInverse = 'up';
        }
        
        var links = $(this.options.id).getElements('a.iceMenuTitle'); 
        //links.append($(this.options.id).getElements('ul.icesubMenu'));  alert(links.toSource());
                             
        links.each(function(item,index){
            
            //store parent links & child menu info
            item.store('parentLinks', item.getParent().getParents('li').getFirst('a'));                                                         
                                  
            if(String(item.getParent().getParent('div').get('class'))=='iceCols')
            {
                item.store('parentLinks',item.getParent().getParent('div').getParent().getParents('li').getFirst().erase(item.getParent().getParent('div').getParent().getParents('li').getFirst().getFirst('a')));  
            }
            item.store('childMenu',item.getNext('ul.icesubMenu') || item.getNext('ol.icesubMenu'));
            
            //determine submenu type
            theSubMenuType = 'subsequent';         
            
            if( $(item.getParent('ul') || item.getParent('ol') ).id === this.options.id){theSubMenuType = 'initial';    }
            item.store('subMenuType',theSubMenuType );
            
            //add classes to parents
            if(theSubMenuType === 'initial' && $(item.getNext('ul.icesubMenu') || item.getNext('ol.icesubMenu') )){
                item.addClass('mainMenuParentBtn');
            }else if($(item.getNext('ul.icesubMenu') || item.getNext('ol.icesubMenu') )){
                item.addClass('subMenuParentBtn');
            }            
        }.bind(this));
        
        //rip the submenus apart into separate divs inside of subMenusContainer
        var subMenusContainer = new Element('div', { 'id': this.options.subMenusContainerId    }).inject( $(document.body) ,'bottom');
        $(this.options.id).getElements('ul.icesubMenu, ol.icesubMenu').each(function(item,index){    
            new Element('div',{'class': 'smOW'}).inject(subMenusContainer).grab(item).addEvents({
                'mouseenter': function(e){                    
                }.bind(this)});        
        }.bind(this));        
        
        subMenusContainer.getElements('a').set('tabindex','-1'); 
        
        links.each(function(item,index){
            //only apply to links with subMenus
            if (!item.retrieve('childMenu')) {return;}
            //update childMenu pointer to look at smOW DIVs
            item.store('childMenu', item.retrieve('childMenu').getParent('div'));
            
            //add to allSubMenus array
            this.allSubMenus.include(item.retrieve('childMenu'));            
            
            //store parentSubMenus
            item.store('parentSubMenus',item.retrieve('parentLinks').retrieve('childMenu'));

            //now create the MenuMaticSubMenu class instances 
            var aSubMenu = new MenuMaticSubMenu(this.options,this, item);

        }.bind(this));

        //attach event handlers to non-parent main menu buttons
        var nonParentBtns = $(this.options.id).getElements('a').filter(function(item, index){ return !item.retrieve('childMenu'); });
        nonParentBtns.each(function(item, index){
            item.addEvents({
                'mouseenter': function(e){             
                    //e = new Event(e).stop();
					$(item).getParent('li').addClass('current'); 
                    this.hideAllSubMenusNow();    
                    if(this.options.mmbClassName && this.options.mmbFocusedClassName){
                        $(item).retrieve('btnMorph', new Fx.Morph(item, { 'duration':(this.options.duration/2), transition:this.options.physics, link:'cancel'})).start(this.options.mmbFocusedClassName); 
                    }     
                    //$(item).getParent('li').removeClass('notCurrent');
                                              
                }.bind(this),
                
                'focus': function(e){
                    //e = new Event(e).stop();
                    this.hideAllSubMenusNow();    
                    if(this.options.mmbClassName && this.options.mmbFocusedClassName){
                        $(item).retrieve('btnMorph', new Fx.Morph(item, { 'duration':(this.options.duration/2), transition:this.options.physics, link:'cancel'})).start(this.options.mmbFocusedClassName); 
                    }
                }.bind(this),
                
                'mouseleave':function(e){
                    //e = new Event(e).stop();
                    if (this.options.mmbClassName && this.options.mmbFocusedClassName) {                        
                        $(item).retrieve('btnMorph', new Fx.Morph(item, {    'duration': (this.options.duration * 5),transition: this.options.physics,link: 'cancel'    })).start(this.options.mmbClassName);
                    } 
                    $(item).getParent('li').removeClass('current');
                    //$(item).getParent('li').addClass('notCurrent');
                }.bind(this),
                
                'blur':function(e){
                    //e = new Event(e).stop();
                    if (this.options.mmbClassName && this.options.mmbFocusedClassName) {                        
                        $(item).retrieve('btnMorph', new Fx.Morph(item, {    'duration': (this.options.duration * 5),transition: this.options.physics,link: 'cancel'    })).start(this.options.mmbClassName);
                    }
                }.bind(this),
                
                'keydown' : function(e){
                    var event = new Event(e);
                    if (e.key === 'up' || e.key === 'down' || e.key === 'left' || e.key === 'right') {    e.stop();    }
                    
                    if( e.key === 'left' && this.options.orientation === 'horizontal' || 
                        e.key === 'up' && this.options.orientation === 'vertical'){
                        
                        if(item.getParent('li').getPrevious('li')){
                            item.getParent('li').getPrevious('li').getFirst('a').focus();
                        }else{
                            item.getParent('li').getParent().getLast('li').getFirst('a').focus();
                        }
                    }else if(e.key === 'right' && this.options.orientation === 'horizontal' || 
                             e.key === 'down' && this.options.orientation === 'vertical'){
                        if(item.getParent('li').getNext('li')){
                            item.getParent('li').getNext('li').getFirst('a').focus();
                        }else{
                            item.getParent('li').getParent().getFirst('li').getFirst('a').focus();
                        }    
                    }
                }.bind(this)
            });
        }, this);

        
        this.stretch();
        this.killDivider();
        this.center();
        this.fixHasLayoutBug();
        this.options.onInit_complete();        
    },
    
    fixHasLayoutBug:function(){
        if(Browser.Engine.trident && this.options.fixHasLayoutBug){
            $(this.options.id).getParents().setStyle('zoom',1);
            $(this.options.id).setStyle('zoom',1);
            $(this.options.id).getChildren().setStyle('zoom',1);
            $(this.options.subMenusContainerId).setStyle('zoom',1);
            $(this.options.subMenusContainerId).getChildren().setStyle('zoom',1);
        }        
    },
    
    center:function(){
        if(!this.options.center){return;}
        $(this.options.id).setStyles({'left':'50%','margin-left': -($(this.options.id).getSize().x/2) });
    },
    
    stretch:function(){
        //stretch main menu btn widths to fit within the width of the parent UL or OL
        if(this.options.stretchMainMenu  && this.options.orientation === 'horizontal'){
            var targetWidth = parseFloat($(this.options.id).getCoordinates().width) ;
            var totalBtnWidth = 0;
            var mainBtns = $(this.options.id).getElements('a');
            mainBtns.setStyles({'padding-left':0,'padding-right':0});
            mainBtns.each(function(item,index){ totalBtnWidth+= item.getSize().x; }.bind(this));
            if(targetWidth < totalBtnWidth){return;}
            var increment = (targetWidth - totalBtnWidth)/ mainBtns.length;
            mainBtns.each(function(item,index){ item.setStyle('width',item.getSize().x+increment);    }.bind(this));
            mainBtns.getLast().setStyle('width',mainBtns.getLast().getSize().x-1);
        }
    },
    
    killDivider:function(){
        if(this.options.killDivider && this.options.killDivider.toLowerCase() === 'first'){
            $($(this.options.id).getElements('li')[0]).setStyles({'background':'none'});
        }else if(this.options.killDivider && this.options.killDivider.toLowerCase() === 'last'){
            $($(this.options.id).getElements('li').getLast()).setStyles({'background':'none'});
        }
    },

    hideAllSubMenusNow: function(){
        this.options.onHideAllSubMenusNow_begin();
        $clear(this.hideAllMenusTimeout);
        $$(this.allSubMenus).fireEvent('hide');
        this.options.onHideAllSubMenusNow_complete();    
    } 
    
});

var MenuMaticSubMenu = new Class({
    Implements: Options,
    Extends: MenuMatic,
    options: {
        onSubMenuInit_begin: (function(subMenuClass){}),
        onSubMenuInit_complete: (function(subMenuClass){}),
        
        onMatchWidth_begin: (function(subMenuClass){}),
        onMatchWidth_complete: (function(subMenuClass){}),
        
        onHideSubMenu_begin: (function(subMenuClass){}),
        onHideSubMenu_complete: (function(subMenuClass){}),
        
        onHideOtherSubMenus_begin: (function(subMenuClass){}),
        onHideOtherSubMenus_complete: (function(subMenuClass){}),        
        
        onHideAllSubMenus_begin: (function(subMenuClass){}),
        onHideAllSubMenus_complete: (function(subMenuClass){}),
        
        onPositionSubMenu_begin: (function(subMenuClass){}),
        onPositionSubMenu_complete: (function(subMenuClass){}),
        
        onShowSubMenu_begin: (function(subMenuClass){}),
        onShowSubMenu_complete: (function(subMenuClass){})
    },
    root:null,
    btn:null,
    hidden:true,
    myEffect:null,
        
    initialize: function(options,root,btn){
        this.setOptions(options);        
        this.root = root;
        this.btn = btn;
        this.childMenu = this.btn.retrieve('childMenu');
        this.subMenuType = this.btn.retrieve('subMenuType');
        this.childMenu = this.btn.retrieve('childMenu');
        this.parentSubMenus =  $$(this.btn.retrieve('parentSubMenus'));
        this.parentLinks =  $$(this.btn.retrieve('parentLinks'));
        this.parentSubMenu = $(this.parentSubMenus[0]);
        if(this.parentSubMenu ){this.parentSubMenu =this.parentSubMenu.retrieve('class');}
        this.childMenu.store('class',this);
        this.btn.store('class',this);
        this.childMenu.store('status','closed')
        
        this.options.onSubMenuInit_begin(this);        
        
        //add hide Event
        this.childMenu.addEvent('hide',function(){this.hideSubMenu();}.bind(this));
        
        //add show Event
        this.childMenu.addEvent('show',function(){this.showSubMenu();}.bind(this));

        if(this.options.effect){
            this.myEffect = new Fx.Morph(
                $(this.childMenu).getFirst(), {    duration: this.options.duration, transition: this.options.physics,  link: 'cancel' } 
            );
        }
        if(this.options.effect === 'slide' || this.options.effect === 'slide & fade'){
            if (this.subMenuType == 'initial' && this.options.orientation === 'horizontal' ) {
                this.childMenu.getFirst().setStyle('margin-top','0' );
            }else {
                this.childMenu.getFirst().setStyle('margin-left', '0');
            }
            
        }else if (this.options.effect === 'fade' || this.options.effect === 'slide & fade'){
            this.childMenu.getFirst().setStyle('opacity',0 );
        }
        
        if (this.options.effect != 'fade' && this.options.effect != 'slide & fade') {
            this.childMenu.getFirst().setStyle('opacity',this.options.opacity);
        }

        var nonParentBtns = $(this.childMenu).getElements('a.iceMenuTitle').filter(function(item, index){ return !item.retrieve('childMenu'); });                          
		var that = this;
		$(this.options.subMenusContainerId).getElements('ul.icesubMenu').each(function(item, index){       
			item.addEvents({                            
					'mouseenter': function(e){
					   item.getParent('div').fireEvent('show'); 
						that.cancellHideAllSubMenus();    
					}.bind(this),                    
					'mouseleave': function(e){ 
						that.cancellHideAllSubMenus();
						that.hideAllSubMenus();
					}.bind(this)
					
					});
		});       
          
        nonParentBtns.each(function(item, index){
            $(item).addClass('subMenuBtn');
            
            item.addEvents({       
                'mouseenter': function(e){          
                    this.childMenu.fireEvent('show');
                    this.cancellHideAllSubMenus();                    
                    this.hideOtherSubMenus();                
                }.bind(this),
                
                'focus': function(e){
                    this.childMenu.fireEvent('show');
                    this.cancellHideAllSubMenus();        
                    this.hideOtherSubMenus();
                }.bind(this),
                
                'mouseleave': function(e){  
                    this.cancellHideAllSubMenus();
                    //this.hideAllSubMenus();                     
                }.bind(this),
                
                'blur': function(e){
                    this.cancellHideAllSubMenus();
                    this.hideAllSubMenus();
                }.bind(this),
                
                'keydown' : function(e){
                    var event = new Event(e);
                    
                    if (e.key === 'up' || e.key === 'down' || e.key === 'left' || e.key === 'right' || e.key === 'tab') {    e.stop();    }
                    
                    if(e.key === 'up'){
                        if(item.getParent('li').getPrevious('li')){
                            //move focus to the next link up if possible
                            item.getParent('li').getPrevious('li').getFirst('a').focus();
                        }else if(this.options.direction.y ==='down'){
                            //move focus to the parent link
                            this.btn.focus();
                        }else if(this.options.direction.y ==='up'){
                            //move focus to the last link in the subMenu
                            item.getParent('li').getParent().getLast('li').getFirst('a').focus();
                        }
                    }else if(e.key === 'down'){
                        if(item.getParent('li').getNext('li')){
                            //move focus to the next link down if possible
                            item.getParent('li').getNext('li').getFirst('a').focus();
                        }else if(this.options.direction.y ==='down'){
                            //move focus to the first link in the submenu
                            item.getParent('li').getParent().getFirst('li').getFirst('a').focus();
                        }else if(this.options.direction.y ==='up'){
                            //move focus to the parent link
                            this.btn.focus();
                        }
                    }else if(e.key === this.options.direction.xInverse){
                        this.btn.focus();
                    }
                }.bind(this) 
            });
            
        }, this);  
        
        $(this.btn).removeClass('subMenuBtn');    
        
        if (this.subMenuType == 'initial') {
            this.btn.addClass('mainParentBtn');    
        }else{    
            this.btn.addClass('subParentBtn');    
        }
       
        //attach event handlers to parent button
        $(this.btn).addEvents({
            'mouseenter' : function(e){    
                //e = new Event(e).stop();
                this.cancellHideAllSubMenus();
                this.hideOtherSubMenus();
                this.showSubMenu();
                if(this.subMenuType === 'initial' && this.options.mmbClassName && this.options.mmbFocusedClassName){
                    $(this.btn).retrieve('btnMorph', new Fx.Morph($(this.btn), { 'duration':(this.options.duration/2), transition:this.options.physics, link:'cancel' })).start(this.options.mmbFocusedClassName);
                }
            }.bind(this),
            
            'focus' : function(e){            
                //e = new Event(e).stop();
                this.cancellHideAllSubMenus();
                this.hideOtherSubMenus();
                this.showSubMenu();
                if(this.subMenuType === 'initial' && this.options.mmbClassName && this.options.mmbFocusedClassName){
                    $(this.btn).retrieve('btnMorph', new Fx.Morph($(this.btn), { 'duration':(this.options.duration/2), transition:this.options.physics, link:'cancel' })).start(this.options.mmbFocusedClassName);
                }
            }.bind(this),
                
            'mouseleave': function(e){     
                //e = new Event(e).stop();  
                if($(this.btn).getParent().get('class')=='iceMenuLiLevel_1')
                {                       
                    this.cancellHideAllSubMenus();
                    this.hideAllSubMenus();
                }  
                else{
                    this.hideSubMenu();
                }  
            }.bind(this),
            
            'blur': function(e){
                //e = new Event(e).stop();
                this.cancellHideAllSubMenus();
                this.hideAllSubMenus();
            }.bind(this),
            
            'keydown' : function(e){
                e = new Event(e)
                if (e.key === 'up' || e.key === 'down' || e.key === 'left' || e.key === 'right') {    e.stop();    }
                
                if(!this.parentSubMenu){
                    //main menu parent buttons
                    if(
                        this.options.orientation === 'horizontal' && e.key === this.options.direction.y ||
                        this.options.orientation === 'vertical' && e.key === this.options.direction.x
                    ){
                        if(this.options.direction.y ==='down'){
                            //move focus to the first link in the child menu
                            this.childMenu.getFirst().getFirst('li').getFirst('a').focus();
                        }else if(this.options.direction.y ==='up'){
                            //move focus to the first link in the child menu
                            this.childMenu.getFirst().getLast('li').getFirst('a').focus();
                        }
                    }else if(
                        this.options.orientation === 'horizontal' && e.key === 'left' ||
                        this.options.orientation === 'vertical' && e.key === this.options.direction.yInverse 
                    ){
                        //move focus to the previous link if possible, if not, move focus to the last link in the menu
                        if(this.btn.getParent().getPrevious()){
                            this.btn.getParent().getPrevious().getFirst().focus();
                        }else{
                            this.btn.getParent().getParent().getLast().getFirst().focus();
                        }
                    }else if(
                        this.options.orientation === 'horizontal' && e.key === 'right' ||
                        this.options.orientation === 'vertical' && e.key === this.options.direction.y 
                    ){
                        //move focus to the next link if possible, if not, move focus to the first link in the menu
                        if (this.btn.getParent().getNext()) {
                            this.btn.getParent().getNext().getFirst().focus();
                        }else{
                            this.btn.getParent().getParent().getFirst().getFirst().focus();
                        }
                    }
                }else{
                    if(e.key === 'tab'){e.stop();}
                    //submenu parent buttons
                    if (e.key === 'up') {
                        if (this.btn.getParent('li').getPrevious('li')) {
                            //move focus to the next link up
                            this.btn.getParent('li').getPrevious('li').getFirst('a').focus();
                        }else if(this.options.direction.y === 'down'){
                            //move focus to the parent link
                            this.parentSubMenu.btn.focus();
                        }else if(this.options.direction.y === 'up'){
                            //move focus to the bottom link in this submenu
                            this.btn.getParent('li').getParent().getLast('li').getFirst('a').focus();
                        }
                    }else if(e.key === 'down'){
                        if(this.btn.getParent('li').getNext('li')){
                            //move focus to the next link down
                            this.btn.getParent('li').getNext('li').getFirst('a').focus();
                        }else if(this.options.direction.y === 'down'){
                            //move focus to the top link in this submenu
                            this.btn.getParent('li').getParent().getFirst('li').getFirst('a').focus();
                        }else if(this.options.direction.y === 'up'){
                            //move focus to the parent link
                            this.parentSubMenu.btn.focus();
                        }
                    }else if(e.key === this.options.direction.xInverse){
                        this.parentSubMenu.btn.focus();
                    }else if(e.key === this.options.direction.x){
                        if(this.options.direction.y === 'down'){
                            this.childMenu.getFirst().getFirst('li').getFirst('a').focus();
                        }else if(this.options.direction.y === 'up'){
                        //    this.childMenu.getFirst().getLast('li').getFirst('a').focus();
                        }
                    }
                }
            }.bind(this)    
        });
        
        this.options.onSubMenuInit_complete(this);
        
    },
    
    matchWidth:function(){
        if (this.widthMatched || !this.options.matchWidthMode || this.subMenuType === 'subsequent'){return;}
        this.options.onMatchWidth_begin(this);
        var parentWidth = this.btn.getCoordinates().width;
        $(this.childMenu).getElements('a').each(function(item,index){
            var borderWidth = parseFloat($(this.childMenu).getFirst().getStyle('border-left-width')) + parseFloat($(this.childMenu).getFirst().getStyle('border-right-width'));
            var paddingWidth = parseFloat(item.getStyle('padding-left')) +     parseFloat(item.getStyle('padding-right'));
            var offset = borderWidth + paddingWidth ;
            if(parentWidth > item.getCoordinates().width){
                item.setStyle('width',parentWidth - offset);
                item.setStyle('margin-right',-borderWidth);
            }
        }.bind(this));
        this.width = this.childMenu.getFirst().getCoordinates().width;
        this.widthMatched = true;
        this.options.onMatchWidth_complete(this);
    },
    
    hideSubMenu: function() {    
        if(this.childMenu.retrieve('status') === 'closed'){return;}    
        this.options.onHideSubMenu_begin(this);
        if (this.subMenuType == 'initial') {
            if(this.options.mmbClassName && this.options.mmbFocusedClassName){
                $(this.btn).retrieve('btnMorph', new Fx.Morph($(this.btn), { 'duration':(this.options.duration), transition:this.options.physics, link:'cancel' })).start(this.options.mmbClassName )
                .chain(function(){
                    $(this.btn).removeClass('mainMenuParentBtnFocused');
                    $(this.btn).addClass('mainMenuParentBtn');
                    $(this.btn).getParent('li').removeClass('current');
                    //$(this.btn).getParent('li').addClass('notCurrent'); 
                }.bind(this));
            }else{
                $(this.btn).removeClass('mainMenuParentBtnFocused');
                $(this.btn).addClass('mainMenuParentBtn');
                 $(this.btn).getParent('li').removeClass('current');
                 //$(this.btn).getParent('li').addClass('notCurrent');
            }
        }else{
            $(this.btn).removeClass('subMenuParentBtnFocused');
            $(this.btn).addClass('subMenuParentBtn');
             $(this.btn).getParent('li').removeClass('current');
             //$(this.btn).getParent('li').addClass('notCurrent');
        }
        
        this.childMenu.setStyle('z-index', 1);
       
        if(this.options.effect && this.options.effect.toLowerCase() === 'slide'){
            if (this.subMenuType == 'initial' && this.options.orientation === 'horizontal' && this.options.direction.y === 'down') {
                this.myEffect.start({ 'margin-top': -this.height }).chain(function(){    this.childMenu.style.display = "none";    }.bind(this));
            }else if (this.subMenuType == 'initial' && this.options.orientation === 'horizontal' && this.options.direction.y === 'up') {
                this.myEffect.start({ 'margin-top': this.height }).chain(function(){    this.childMenu.style.display = "none";    }.bind(this));
            }else if(this.options.direction.x === 'right'){
                this.myEffect.start({ 'margin-left': -this.width }).chain(function(){    this.childMenu.style.display = "none";    }.bind(this));
            }else if(this.options.direction.x === 'left'){
                this.myEffect.start({ 'margin-left': this.width }).chain(function(){    this.childMenu.style.display = "none";    }.bind(this));
            }
        }else if(this.options.effect == 'fade'){  
            this.myEffect.start({ 'opacity': 0 }).chain(function(){    this.childMenu.style.display = "none";    }.bind(this));
        }else if(this.options.effect == 'slide & fade'){    
            if (this.subMenuType == 'initial' && this.options.orientation === 'horizontal' && this.options.direction.y === 'down') {
                this.myEffect.start({ 'margin-top': -this.height }).chain(function(){    this.childMenu.style.display = "none";    }.bind(this));
            }else if (this.subMenuType == 'initial' && this.options.orientation === 'horizontal' && this.options.direction.y === 'up') {
                this.myEffect.start({ 'margin-top': this.height }).chain(function(){    this.childMenu.style.display = "none";    }.bind(this));
            }else if(this.options.direction.x === 'right'){
                this.myEffect.start({ 'margin-left': -this.width }).chain(function(){    this.childMenu.style.display = "none";    }.bind(this));
            }else if(this.options.direction.x === 'left'){
                this.myEffect.start({ 'margin-left': this.width }).chain(function(){    this.childMenu.style.display = "none";    }.bind(this));
            }
        }else{   
            this.childMenu.style.display = "none";
        }
        this.childMenu.store('status','closed');
        this.options.onHideSubMenu_complete(this);
    },
    
    hideOtherSubMenus: function() {        
        this.options.onHideOtherSubMenus_begin(this);
        //set up otherSubMenus element collection
        if(!this.btn.retrieve('otherSubMenus')){
            this.btn.store('otherSubMenus', $$(this.root.allSubMenus.filter(function(item){ return !this.btn.retrieve('parentSubMenus').contains(item) && item != this.childMenu; }.bind(this)) ));
        }        
        this.parentSubMenus.fireEvent('show');
        this.btn.retrieve('otherSubMenus').fireEvent('hide');
        this.options.onHideOtherSubMenus_complete(this);
    },
    
    hideAllSubMenus: function(){
        this.options.onHideAllSubMenus_begin(this);
        $clear(this.root.hideAllMenusTimeout);
        this.root.hideAllMenusTimeout = (function(){
            $clear(this.hideAllMenusTimeout);            
            $$(this.root.allSubMenus).fireEvent('hide');            
        }).bind(this).delay(this.options.hideDelay);
        this.options.onHideAllSubMenus_complete(this);        
    },

    cancellHideAllSubMenus: function(){ 
        $clear(this.root.hideAllMenusTimeout);    
    },
    
    showSubMenu: function(now){    //alert('ass')    
        //if(this.childMenu.retrieve('status') === 'open'){alert('ss'); return;}   
        this.options.onShowSubMenu_begin(this);
        if (this.subMenuType == 'initial') {
            $(this.btn).removeClass('mainMenuParentBtn');
            $(this.btn).addClass('mainMenuParentBtnFocused');   
            //$(this.btn).getParent('li').removeClass('notCurrent');
            $(this.btn).getParent('li').addClass('current'); 
        }else{
            $(this.btn).removeClass('subMenuParentBtn');
            $(this.btn).addClass('subMenuParentBtnFocused');
            //$(this.btn).getParent('li').removeClass('notCurrent');
            $(this.btn).getParent('li').addClass('current'); 
        }         
        this.root.subMenuZindex++;
        this.childMenu.setStyles({'display':'block','visibility':'hidden','z-index':1000});
        
        if(!this.width || !this.height ){
            this.width = this.childMenu.getFirst().getCoordinates().width;
            this.height = this.childMenu.getFirst().getCoordinates().height;
            this.childMenu.setStyle('height',this.height,'border');
            if(this.options.effect === 'slide' || this.options.effect === 'slide & fade'){
                if (this.subMenuType == 'initial' && this.options.orientation === 'horizontal' ) {
                    this.childMenu.getFirst().setStyle('margin-top','0' );
                    if(this.options.direction.y === 'down'){
                        this.myEffect.set({ 'margin-top': - this.height });
                    }else if(this.options.direction.y === 'up'){
                        this.myEffect.set({ 'margin-top': this.height });
                    }
                }else {
                    if(this.options.direction.x === 'left'){
                        this.myEffect.set({ 'margin-left': this.width });
                    }else{
                        this.myEffect.set({ 'margin-left': -this.width });
                    }
                }
            }
        }
        this.matchWidth();
        this.positionSubMenu();
        
        if(this.options.effect === 'slide' ){
            this.childMenu.setStyles({'display':'block','visibility':'visible'});
            if (this.subMenuType === 'initial' && this.options.orientation === 'horizontal') {
                if(now){
                    this.myEffect.set({ 'margin-top': 0 }).chain(function(){    this.showSubMenuComplete();    }.bind(this));
                }else{
                    this.myEffect.start({ 'margin-top': 0 }).chain(function(){    this.showSubMenuComplete();    }.bind(this));
                }
            }else{
                if (now) {
                    this.myEffect.set({ 'margin-left': 0 }).chain(function(){    this.showSubMenuComplete();    }.bind(this));
                }else{
                    this.myEffect.start({ 'margin-left': 0 }).chain(function(){    this.showSubMenuComplete();    }.bind(this));
                }
            }
        }else if(this.options.effect === 'fade' ){
            if (now) {
                this.myEffect.set({'opacity': this.options.opacity}).chain(function(){    this.showSubMenuComplete();    }.bind(this));
            }else{
                this.myEffect.start({'opacity': this.options.opacity}).chain(function(){    this.showSubMenuComplete();    }.bind(this));
            }
        }else if(this.options.effect == 'slide & fade'){
            this.childMenu.setStyles({'display':'block','visibility':'visible'});
            this.childMenu.getFirst().setStyles({'left':0});
            if (this.subMenuType === 'initial' && this.options.orientation === 'horizontal') {
                if (now) {
                    this.myEffect.set({ 'margin-top': 0, 'opacity': this.options.opacity }).chain(function(){    this.showSubMenuComplete();    }.bind(this));
                }else{
                    this.myEffect.start({ 'margin-top': 0, 'opacity': this.options.opacity }).chain(function(){    this.showSubMenuComplete();    }.bind(this));
                }
            }else{
                if (now) {
                    if (this.options.direction.x === 'right') {
                        this.myEffect.set({ 'margin-left': 0, 'opacity': this.options.opacity }).chain(function(){    this.showSubMenuComplete();    }.bind(this));
                    }else if (this.options.direction.x === 'left') {
                        this.myEffect.set({ 'margin-left': 0, 'opacity': this.options.opacity }).chain(function(){    this.showSubMenuComplete();    }.bind(this));
                    }    
                }else{
                    if (this.options.direction.x === 'right') {                        
                        this.myEffect.set({ 'margin-left': -this.width, 'opacity': this.options.opacity });                        
                        this.myEffect.start({ 'margin-left': 0, 'opacity': this.options.opacity }).chain(function(){    this.showSubMenuComplete();    }.bind(this));
                    }else if (this.options.direction.x === 'left') {
                        this.myEffect.start({ 'margin-left': 0, 'opacity': this.options.opacity }).chain(function(){    this.showSubMenuComplete();    }.bind(this));
                    }
                }
            }
        }else{
            this.childMenu.setStyles({'display':'block','visibility':'visible'}).chain(function(){    this.showSubMenuComplete(this);    }.bind(this));
        }
        this.childMenu.store('status','open');
        
    },
    showSubMenu: function(now){
        //if(this.childMenu.retrieve('status') === 'open'){alert('ss'); return;}   
        this.options.onShowSubMenu_begin(this);
        if (this.subMenuType == 'initial') {
            $(this.btn).removeClass('mainMenuParentBtn');
            $(this.btn).addClass('mainMenuParentBtnFocused');  
            //$(this.btn).getParent('li').removeClass('notCurrent');
            $(this.btn).getParent('li').addClass('current');   
        }else{
            $(this.btn).removeClass('subMenuParentBtn');
            $(this.btn).addClass('subMenuParentBtnFocused');
            $(this.btn).removeClass('mainMenuParentBtn');
            $(this.btn).addClass('mainMenuParentBtnFocused');
            $(this.btn).getParent('li').removeClass('current');
           // $(this.btn).getParent('li').addClass('notCurrent'); 
        }
        this.root.subMenuZindex++;    
        this.childMenu.setStyles({'display':'block','visibility':'hidden','z-index':1000});
        
        if(!this.width || !this.height ){
            this.width = this.childMenu.getFirst().getCoordinates().width;
            this.height = this.childMenu.getFirst().getCoordinates().height;
            this.childMenu.setStyle('height',this.height,'border');
            if(this.options.effect === 'slide' || this.options.effect === 'slide & fade'){
                if (this.subMenuType == 'initial' && this.options.orientation === 'horizontal' ) {
                    this.childMenu.getFirst().setStyle('margin-top','0' );
                    if(this.options.direction.y === 'down'){
                        this.myEffect.set({ 'margin-top': - this.height });
                    }else if(this.options.direction.y === 'up'){
                        this.myEffect.set({ 'margin-top': this.height });
                    }
                }else {
                    if(this.options.direction.x === 'left'){
                        this.myEffect.set({ 'margin-left': this.width });
                    }else{
                        this.myEffect.set({ 'margin-left': -this.width });
                    }
                }
            }
        }
        this.matchWidth();
        this.positionSubMenu();
        
        if(this.options.effect === 'slide' ){
            this.childMenu.setStyles({'display':'block','visibility':'visible'});
            if (this.subMenuType === 'initial' && this.options.orientation === 'horizontal') {
                if(now){
                    this.myEffect.set({ 'margin-top': 0 }).chain(function(){    this.showSubMenuComplete();    }.bind(this));
                }else{
                    this.myEffect.start({ 'margin-top': 0 }).chain(function(){    this.showSubMenuComplete();    }.bind(this));
                }
            }else{
                if (now) {
                    this.myEffect.set({ 'margin-left': 0 }).chain(function(){    this.showSubMenuComplete();    }.bind(this));
                }else{
                    this.myEffect.start({ 'margin-left': 0 }).chain(function(){    this.showSubMenuComplete();    }.bind(this));
                }
            }
        }else if(this.options.effect === 'fade' ){
            if (now) {
                this.myEffect.set({'opacity': this.options.opacity}).chain(function(){    this.showSubMenuComplete();    }.bind(this));
            }else{
                this.myEffect.start({'opacity': this.options.opacity}).chain(function(){    this.showSubMenuComplete();    }.bind(this));
            }
        }else if(this.options.effect == 'slide & fade'){
            this.childMenu.setStyles({'display':'block','visibility':'visible'});
            this.childMenu.getFirst().setStyles({'left':0});
            if (this.subMenuType === 'initial' && this.options.orientation === 'horizontal') {
                if (now) {
                    this.myEffect.set({ 'margin-top': 0, 'opacity': this.options.opacity }).chain(function(){    this.showSubMenuComplete();    }.bind(this));
                }else{
                    this.myEffect.start({ 'margin-top': 0, 'opacity': this.options.opacity }).chain(function(){    this.showSubMenuComplete();    }.bind(this));
                }
            }else{
                if (now) {
                    if (this.options.direction.x === 'right') {
                        this.myEffect.set({ 'margin-left': 0, 'opacity': this.options.opacity }).chain(function(){    this.showSubMenuComplete();    }.bind(this));
                    }else if (this.options.direction.x === 'left') {
                        this.myEffect.set({ 'margin-left': 0, 'opacity': this.options.opacity }).chain(function(){    this.showSubMenuComplete();    }.bind(this));
                    }    
                }else{
                    if (this.options.direction.x === 'right') {                        
                        //this.myEffect.set({ 'margin-left': -this.width, 'opacity': this.options.opacity });                        
                        this.myEffect.start({ 'margin-left': 0, 'opacity': this.options.opacity }).chain(function(){    this.showSubMenuComplete();    }.bind(this));
                    }else if (this.options.direction.x === 'left') {
                        this.myEffect.start({ 'margin-left': 0, 'opacity': this.options.opacity }).chain(function(){    this.showSubMenuComplete();    }.bind(this));
                    }
                }
            }
        }else{
            this.childMenu.setStyles({'display':'block','visibility':'visible'}).chain(function(){    this.showSubMenuComplete(this);    }.bind(this));
        }
        this.childMenu.store('status','open');
        
    },
    
    showSubMenuComplete:function(){        
        this.options.onShowSubMenu_complete(this);
    },
    
    positionSubMenu: function(){
        this.options.onPositionSubMenu_begin(this);
        this.childMenu.setStyle('width',this.width) ;
        this.childMenu.getFirst().setStyle('width',this.width) ;
        
        //if any parent has bounced off a viewport edge, inherit that new direction
        if (this.subMenuType === 'subsequent') {
            if(this.parentSubMenu && this.options.direction.x != this.parentSubMenu.options.direction.x){
                if(this.parentSubMenu.options.direction.x === 'left' && this.options.effect && this.options.effect.contains('slide')){
                    this.myEffect.set({ 'margin-left': this.width });    
                }
            }
            this.options.direction.x = this.parentSubMenu.options.direction.x;
            this.options.direction.xInverse = this.parentSubMenu.options.direction.xInverse;
            this.options.direction.y = this.parentSubMenu.options.direction.y;
            this.options.direction.yInverse = this.parentSubMenu.options.direction.yInverse;
        }

        var top;
        var overlap
        if(this.subMenuType == 'initial')
		{
            if(this.options.direction.y === 'up')
			{
                if(this.options.orientation === 'vertical')
				{
                    top = this.btn.getCoordinates().bottom - this.height + this.options.tweakInitial.y ;
                }
				else
				{
                    top = this.btn.getCoordinates().top - this.height + this.options.tweakInitial.y ;
                }
                this.childMenu.style.top = top+ 'px';
            }
			else if(this.options.orientation == 'horizontal')
			{
                this.childMenu.style.top = this.btn.getCoordinates().bottom + this.options.tweakInitial.y + 'px';
            }
			else if(this.options.orientation == 'vertical')
			{
                top = this.btn.getPosition().y + this.options.tweakInitial.y ;                
                if((top + this.childMenu.getSize().y) >= $(document.body).getScrollSize().y){
                    overlap = (top + this.childMenu.getSize().y) - $(document.body).getScrollSize().y  ;
                    top = top - overlap - 20;
                }    
                this.childMenu.style.top = top+ 'px';
            }
            if(this.options.orientation == 'horizontal'){
				if($(document.body).getScrollSize().x > (this.btn.getPosition().x + this.childMenu.getCoordinates().width))				
                	this.childMenu.style.left = this.btn.getPosition().x + this.options.tweakInitial.x + 'px';
				else if(this.btn.getCoordinates().right > this.childMenu.getCoordinates().width)
					this.childMenu.style.left = this.btn.getCoordinates().right - this.childMenu.getCoordinates().width + 'px';
				else
					this.childMenu.style.left = ($(document.body).getScrollSize().x - this.childMenu.getCoordinates().width)/2 + 'px';
					
            }else if(this.options.direction.x == 'left'){
				this.childMenu.style.left = this.btn.getPosition().x - this.childMenu.getCoordinates().width + this.options.tweakInitial.x + 'px';
            }else if(this.options.direction.x == 'right'){				
                this.childMenu.style.left = this.btn.getCoordinates().right + this.options.tweakInitial.x + 'px';
            }
        }
		else if(this.subMenuType == 'subsequent')
		{
            if(this.options.direction.y === 'down'){
                if((this.btn.getCoordinates().top + this.options.tweakSubsequent.y+ this.childMenu.getSize().y) >= $(document.body).getScrollSize().y ){
                    overlap = (this.btn.getCoordinates().top + this.options.tweakSubsequent.y+ this.childMenu.getSize().y) -$(document.body).getScrollSize().y;
					this.childMenu.style.top = (this.btn.getCoordinates().top + this.options.tweakSubsequent.y) - overlap - 20+ 'px';
                }else{
                    this.childMenu.style.top = this.btn.getCoordinates().top + this.options.tweakSubsequent.y + 'px';
                }
            }else if(this.options.direction.y === 'up'){
                if((this.btn.getCoordinates().bottom - this.height + this.options.tweakSubsequent.y)< 1){
                    this.options.direction.y = 'down';
                    this.options.direction.yInverse = 'up';
                    this.childMenu.style.top = this.btn.getCoordinates().top + this.options.tweakSubsequent.y + 'px';
                }else{
                    this.childMenu.style.top = this.btn.getCoordinates().bottom - this.height + this.options.tweakSubsequent.y + 'px';
                }
            }
            if(this.options.direction.x == 'left'){
                this.childMenu.style.left = this.btn.getCoordinates().left - this.childMenu.getCoordinates().width + this.options.tweakSubsequent.x + 'px';
                
                if( this.childMenu.getPosition().x < 0){                    
                    this.options.direction.x = 'right';
                    this.options.direction.xInverse = 'left';
                    this.childMenu.style.left = this.btn.getPosition().x + this.btn.getCoordinates().width + this.options.tweakSubsequent.x + 'px';
                    
                    if(this.options.effect === 'slide' || this.options.effect === 'slide & fade'){
                        this.myEffect.set({ 'margin-left': -this.width, 'opacity': this.options.opacity });                        
                    }
                }
            }else if(this.options.direction.x == 'right'){
                this.childMenu.style.left = this.btn.getCoordinates().right + this.options.tweakSubsequent.x + 'px';
                var smRight = this.childMenu.getCoordinates().right;
                var viewportRightEdge = document.getCoordinates().width + window.getScroll().x;                
                if( smRight > viewportRightEdge ){
                    this.options.direction.x = 'left';
                    this.options.direction.xInverse = 'right';
                    this.childMenu.style.left = this.btn.getCoordinates().left - this.childMenu.getCoordinates().width + this.options.tweakSubsequent.x + 'px'
                    if (this.options.effect === 'slide' || this.options.effect === 'slide & fade') {
                        this.myEffect.set({    'margin-left': 0,    'opacity': this.options.opacity    });
                    }
                }
            }
        }
        this.options.onPositionSubMenu_complete(this);
    }    
});