//** Smooth Navigational Menu- By Dynamic Drive DHTML code library: http://www.dynamicdrive.com
//** Script Download/ instructions page: http://www.dynamicdrive.com/dynamicindex1/ddlevelsmenu/
//** Menu created: Nov 12, 2008

//** Dec 12th, 08" (v1.01): Fixed Shadow issue when multiple LIs within the same UL (level) contain sub menus: http://www.dynamicdrive.com/forums/showthread.php?t=39177&highlight=smooth

//** Feb 11th, 09" (v1.02): The currently active main menu item (LI A) now gets a CSS class of ".selected", including sub menu items.

//** May 1st, 09" (v1.3):
//** 1) Now supports vertical (side bar) menu mode- set "orientation" to 'v'
//** 2) In IE6, shadows are now always disabled

//** July 27th, 09" (v1.31): Fixed bug so shadows can be disabled if desired.
//** Feb 2nd, 10" (v1.4): Adds ability to specify delay before sub menus appear and disappear, respectively. See showhidedelay variable below

var ddsmoothmenu={

//Specify full URL to down and right arrow images (23 is padding-right added to top level LIs with drop downs):
arrowimages: {down:[], right:[]},
transition: {overtime:300, outtime:300}, //duration of slide in/ out animation, in milliseconds
shadow: {enable:false, offsetx:5, offsety:5}, //enable shadow?
showhidedelay: {showdelay: 100, hidedelay: 200}, //set delay in milliseconds before sub menus appear and disappear, respectively

///////Stop configuring beyond here///////////////////////////

detectwebkit: navigator.userAgent.toLowerCase().indexOf("applewebkit")!=-1, //detect WebKit browsers (Safari, Chrome etc)
detectie6: document.all && !window.XMLHttpRequest,

getajaxmenu:function($, setting){ //function to fetch external page containing the panel DIVs
    var $menucontainer=$('#'+setting.contentsource[0]) //reference empty div on page that will hold menu
    $menucontainer.html("Loading Menu...")
    $.ajax({
        url: setting.contentsource[1], //path to external menu file
        async: true,
        error:function(ajaxrequest){
            $menucontainer.html('Error fetching content. Server Response: '+ajaxrequest.responseText)
        },
        success:function(content){
            $menucontainer.html(content)
            ddsmoothmenu.buildmenu($, setting)
        }
    })
},


buildmenu:function($, setting){
    var smoothmenu=ddsmoothmenu
    var $mainmenu=$("#"+setting.mainmenuid+">ul") //reference main menu UL
    $mainmenu.parent().get(0).className=setting.classname || "ddsmoothmenu"
    var $headers=$mainmenu.find("ul").parent()
    $headers.hover(
        function(e){
            $(this).children('a:eq(0)').addClass('selected')
        },
        function(e){
            $(this).children('a:eq(0)').removeClass('selected')
        }
    )
    $headers.each(function(i){ //loop through each LI header
        var $curobj=$(this).css({zIndex: 100-i}) //reference current LI header
        var $subul=$(this).find('ul:eq(0)').css({display:'block'})
        $subul.data('timers', {})
        this._dimensions={w:this.offsetWidth, h:this.offsetHeight, subulw:$subul.outerWidth(), subulh:$subul.outerHeight()}
        this.istopheader=$curobj.parents("ul").length==1? true : false //is top level header?
        $subul.css({top:this.istopheader && setting.orientation!='v'? this._dimensions.h+"px" : 0})
        $curobj.children("a:eq(0)").css(this.istopheader? {paddingRight: smoothmenu.arrowimages.down[2]} : {})
        if (smoothmenu.shadow.enable){
            this._shadowoffset={x:(this.istopheader?$subul.offset().left+smoothmenu.shadow.offsetx : this._dimensions.w), y:(this.istopheader? $subul.offset().top+smoothmenu.shadow.offsety : $curobj.position().top)} //store this shadow's offsets
            if (this.istopheader)
                $parentshadow=$(document.body)
            else{
                var $parentLi=$curobj.parents("li:eq(0)")
                $parentshadow=$parentLi.get(0).$shadow
            }
            this.$shadow=$('<div class="ddshadow'+(this.istopheader? ' toplevelshadow' : '')+'"></div>').prependTo($parentshadow).css({left:this._shadowoffset.x+'px', top:this._shadowoffset.y+'px'})  //insert shadow DIV and set it to parent node for the next shadow div
        }
        $curobj.hover(
            function(e){
                var $targetul=$subul //reference UL to reveal
                var header=$curobj.get(0) //reference header LI as DOM object
                clearTimeout($targetul.data('timers').hidetimer)
                $targetul.data('timers').showtimer=setTimeout(function(){
                    header._offsets={left:$curobj.offset().left, top:$curobj.offset().top}
                    var menuleft=header.istopheader && setting.orientation!='v'? 0 : header._dimensions.w
                    menuleft=(header._offsets.left+menuleft+header._dimensions.subulw>$(window).width())? (header.istopheader && setting.orientation!='v'? -header._dimensions.subulw+header._dimensions.w : -header._dimensions.w) : menuleft //calculate this sub menu's offsets from its parent
                    if ($targetul.queue().length<=1){ //if 1 or less queued animations
                        $targetul.css({left:menuleft+"px", width:header._dimensions.subulw+'px'}).animate({height:'show',opacity:'show'}, ddsmoothmenu.transition.overtime)
                        if (smoothmenu.shadow.enable){
                            var shadowleft=header.istopheader? $targetul.offset().left+ddsmoothmenu.shadow.offsetx : menuleft
                            var shadowtop=header.istopheader?$targetul.offset().top+smoothmenu.shadow.offsety : header._shadowoffset.y
                            if (!header.istopheader && ddsmoothmenu.detectwebkit){ //in WebKit browsers, restore shadow's opacity to full
                                header.$shadow.css({opacity:1})
                            }
                            header.$shadow.css({overflow:'', width:header._dimensions.subulw+'px', left:shadowleft+'px', top:shadowtop+'px'}).animate({height:header._dimensions.subulh+'px'}, ddsmoothmenu.transition.overtime)
                        }
                    }
                }, ddsmoothmenu.showhidedelay.showdelay)
            },
            function(e){
                var $targetul=$subul
                var header=$curobj.get(0)
                clearTimeout($targetul.data('timers').showtimer)
                $targetul.data('timers').hidetimer=setTimeout(function(){
                    $targetul.animate({height:'hide', opacity:'hide'}, ddsmoothmenu.transition.outtime)
                    if (smoothmenu.shadow.enable){
                        if (ddsmoothmenu.detectwebkit){ //in WebKit browsers, set first child shadow's opacity to 0, as "overflow:hidden" doesn't work in them
                            header.$shadow.children('div:eq(0)').css({opacity:0})
                        }
                        header.$shadow.css({overflow:'hidden'}).animate({height:0}, ddsmoothmenu.transition.outtime)
                    }
                }, ddsmoothmenu.showhidedelay.hidedelay)
            }
        ) //end hover
    }) //end $headers.each()
    $mainmenu.find("ul").css({display:'none', visibility:'visible'})
},

init:function(setting){
    if (typeof setting.customtheme=="object" && setting.customtheme.length==2){ //override default menu colors (default/hover) with custom set?
        var mainmenuid='#'+setting.mainmenuid
        var mainselector=(setting.orientation=="v")? mainmenuid : mainmenuid+', '+mainmenuid
        document.write('<style type="text/css">\n'
            +mainselector+' ul li a {background:'+setting.customtheme[0]+';}\n'
            +mainmenuid+' ul li a:hover {background:'+setting.customtheme[1]+';}\n'
        +'</style>')
    }
    this.shadow.enable=(document.all && !window.XMLHttpRequest)? false : this.shadow.enable //in IE6, always disable shadow
    jQuery(document).ready(function($){ //ajax menu?
        if (typeof setting.contentsource=="object"){ //if external ajax menu
            ddsmoothmenu.getajaxmenu($, setting)
        }
        else{ //else if markup menu
            ddsmoothmenu.buildmenu($, setting)
        }
    })
}

} //end ddsmoothmenu variable