/* Flex Level Drop Down Menu v1.1
* Created: Jan 5th, 2010 by DynamicDrive.com. This notice must stay intact for usage
* Author: Dynamic Drive at http://www.dynamicdrive.com/
* Visit http://www.dynamicdrive.com/ for full source code
*/

//Version 1.1 (Feb 19th, 2010): Each flex menu (UL) can now be associated with a link dynamically, and/or defined using JavaScript instead of as markup.

//Usage: $(elementselector).addflexmenu('menuid', options)
//ie:
//jQuery(document).ready(function($){
        //$('a.mylinks').addflexmenu('flexmenu1') //apply flex menu with ID "flexmenu1" to links with class="mylinks"
//})

jQuery.noConflict()

var flexdropdownmenu={
        arrowpath: '', //full URL or path to arrow image
        animspeed: 200, //reveal animation speed (in milliseconds)
        showhidedelay: [150, 150], //delay before menu appears and disappears when mouse rolls over it, in milliseconds

        //***** NO NEED TO EDIT BEYOND HERE
        startzindex:1000,
        builtflexmenuids: [], //ids of flex menus already built (to prevent repeated building of same flex menu)

        positionul:function($, $ul, e, $anchor){
                var istoplevel=$ul.hasClass('jqflexmenu') //Bool indicating whether $ul is top level flex menu DIV
                var docrightedge=$(document).scrollLeft()+$(window).width()-40 //40 is to account for shadows in FF
                var docbottomedge=$(document).scrollTop()+$(window).height()-40
                if (istoplevel){ //if main flex menu DIV
                        var offsets=$anchor.offset()
                        var anchorsetting=$anchor.data('setting')
                        var x=offsets.left+anchorsetting.useroffsets[0]+(anchorsetting.dir=="h"? $anchor.outerWidth() : 0) //x pos of main flex menu UL
                        var y=offsets.top+anchorsetting.useroffsets[1]+(anchorsetting.dir=="h"? 0 : $anchor.outerHeight())
                        x=(x+$ul.data('dimensions').w > docrightedge)? x-(anchorsetting.useroffsets[0]*2)-$ul.data('dimensions').w+$anchor.outerWidth()+(anchorsetting.dir=="h"? -($anchor.outerWidth()*2) : 0) : x //if not enough horizontal room to the ridge of the cursor
                        y=(y+$ul.data('dimensions').h > docbottomedge)? y-(anchorsetting.useroffsets[1]*2)-$ul.data('dimensions').h-$anchor.outerHeight()+(anchorsetting.dir=="h"? ($anchor.outerHeight()*2) : 0) : y
                }
                else{ //if sub level flex menu UL
                        var $parentli=$ul.data('$parentliref')
                        var parentlioffset=$parentli.offset()
                        var x=$ul.data('dimensions').parentliw //x pos of sub UL
                        var y=0
                        x=(parentlioffset.left+x+$ul.data('dimensions').w > docrightedge)? x-$ul.data('dimensions').parentliw-$ul.data('dimensions').w : x //if not enough horizontal room to the ridge parent LI
                        y=(parentlioffset.top+$ul.data('dimensions').h > docbottomedge)? y-$ul.data('dimensions').h+$ul.data('dimensions').parentlih : y
                }
                $ul.css({left:x, top:y})
        },

        showbox:function($, $flexmenu, e){
                clearTimeout($flexmenu.data('timers').hidetimer)
                $flexmenu.data('timers').showtimer=setTimeout(function(){$flexmenu.show(flexdropdownmenu.animspeed)}, this.showhidedelay[0])
        },

        hidebox:function($, $flexmenu){
                clearTimeout($flexmenu.data('timers').showtimer)
                $flexmenu.data('timers').hidetimer=setTimeout(function(){$flexmenu.hide(100)}, this.showhidedelay[1]) //hide flex menu plus all of its sub ULs
        },


        buildflexmenu:function($, $menu, $target){
                $menu.css({display:'block', visibility:'hidden', zIndex:this.startzindex}).addClass('jqflexmenu').appendTo(document.body)
                $menu.bind('mouseenter', function(){
                        clearTimeout($menu.data('timers').hidetimer)
                })
                $menu.bind('mouseleave', function(){ //hide menu when mouse moves out of it
                        flexdropdownmenu.hidebox($, $menu)
                })
                $menu.data('dimensions', {w:$menu.outerWidth(), h:$menu.outerHeight()}) //remember main menu's dimensions
                $menu.data('timers', {})
                var $lis=$menu.find("ul").parent() //find all LIs within menu with a sub UL
                $lis.each(function(i){
                        var $li=$(this).css({zIndex: 1000+i})
                        var $subul=$li.find('ul:eq(0)').css({display:'block'}) //set sub UL to "block" so we can get dimensions
                        $subul.data('dimensions', {w:$subul.outerWidth(), h:$subul.outerHeight(), parentliw:this.offsetWidth, parentlih:this.offsetHeight})
                        $subul.data('$parentliref', $li) //cache parent LI of each sub UL
                        $subul.data('timers', {})
                        $li.data('$subulref', $subul) //cache sub UL of each parent LI
                        $li.children("a:eq(0)").append( //add arrow images
                                ''
                        )
                        $li.bind('mouseenter', function(e){ //show sub UL when mouse moves over parent LI
                                var $targetul=$(this).css('zIndex', ++flexdropdownmenu.startzindex).addClass("selected").data('$subulref')
                                if ($targetul.queue().length<=1){ //if 1 or less queued animations
                                        clearTimeout($targetul.data('timers').hidetimer)
                                        $targetul.data('timers').showtimer=setTimeout(function(){
                                                flexdropdownmenu.positionul($, $targetul, e)
                                                $targetul.show(flexdropdownmenu.animspeed)
                                        }, flexdropdownmenu.showhidedelay[0])
                                }
                        })
                        $li.bind('mouseleave', function(e){ //hide sub UL when mouse moves out of parent LI
                                var $targetul=$(this).data('$subulref')
                                clearTimeout($targetul.data('timers').showtimer)
                                $targetul.data('timers').hidetimer=setTimeout(function(){$targetul.hide(100).data('$parentliref').removeClass('selected')}, flexdropdownmenu.showhidedelay[1])
                        })
                })
                $menu.find('ul').andSelf().css({display:'none', visibility:'visible'}) //collapse all ULs again
                this.builtflexmenuids.push($menu.get(0).id) //remember id of flex menu that was just built
        },



        init:function($, $target, $flexmenu){
                if (this.builtflexmenuids.length==0){ //only bind click event to document once
                        $(document).bind("click", function(e){
                                if (e.button==0){ //hide all flex menus (and their sub ULs) when left mouse button is clicked
                                        $('.jqflexmenu').find('ul').andSelf().hide()
                                }
                        })
                }
                if (jQuery.inArray($flexmenu.get(0).id, this.builtflexmenuids)==-1) //if this flex menu hasn't been built yet
                        this.buildflexmenu($, $flexmenu, $target)
                if ($target.parents().filter('ul.jqflexmenu').length>0) //if $target matches an element within the flex menu markup, don't bind onflexmenu to that element
                        return
                var useroffsets=$target.attr('data-offsets')? $target.attr('data-offsets').split(',') : [0,0] //get additional user offsets of menu
                useroffsets=[parseInt(useroffsets[0]), parseInt(useroffsets[1])]
                $target.data('setting', {dir: $target.attr('data-dir'), useroffsets: useroffsets}) //store direction (drop right or down) of menu plus user offsets
                $target.bind("mouseenter", function(e){
                        $flexmenu.css('zIndex', ++flexdropdownmenu.startzindex)
                        flexdropdownmenu.positionul($, $flexmenu, e, $target)
                        flexdropdownmenu.showbox($, $flexmenu, e)
                })
                $target.bind("mouseleave", function(e){
                        flexdropdownmenu.hidebox($, $flexmenu)
                })
        }
}

jQuery.fn.addflexmenu=function(flexmenuid, options){
        var $=jQuery
        return this.each(function(){ //return jQuery obj
                var $target=$(this)
                if (typeof options=="object"){ //if options parameter defined
                        if (options.dir)
                                $target.attr('data-dir', options.dir) //set/overwrite data-dir attr with defined value
                        if (options.offsets)
                                $target.attr('data-offsets', options.offsets) //set/overwrite data-offsets attr with defined value
                }
                if ($('#'+flexmenuid).length==1) //check flex menu is defined
                        flexdropdownmenu.init($, $target, $('#'+flexmenuid))
        })
};

//By default, add flex menu to anchor links with attribute "data-flexmenu"
jQuery(document).ready(function($){
        var $anchors=$('*[data-flexmenu]')
        $anchors.each(function(){
                $(this).addflexmenu(this.getAttribute('data-flexmenu'))
        })
})


//ddlistmenu: Function to define a UL list menu dynamically

function ddlistmenu(id, className){
        var menu=document.createElement('ul')
        if (id)
                menu.id=id
        if (className)
                menu.className=className
        this.menu=menu
}

ddlistmenu.prototype={
        addItem:function(url, text, target){
                var li=document.createElement('li')
                li.innerHTML='<a href="'+url+'" target="'+target+'">'+text+'</a>'
                this.menu.appendChild(li)
                this.li=li
                return this
        },
        addSubMenu:function(){
                var s=new ddlistmenu(null, null)
                this.li.appendChild(s.menu)
                return s

        }
}