//** 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

//** Dec 17th, 10" (v1.5): Updated menu shadow to use CSS3 box shadows when the browser is FF3.5+, IE9+, Opera9.5+, or Safari3+/Chrome. Only .js file changed.

var smoothmenu={

//Specify full URL to down and right arrow images (23 is padding-right added to top level LIs with drop downs):
arrowimages: {down:['down-arrow', 'img/down-arrow.gif', 23], right:['right-arrow', 'img/right-arrow.gif']},
transition: {overtime:200, outtime:200}, //duration of slide in/ out animation, in milliseconds
shadow: {enable:true, offsetx:4, offsety:4}, //enable shadow?
showhidedelay: {showdelay: 200, hidedelay: 300}, //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,
css3support: window.msPerformance || (!document.all && document.querySelector), //detect browsers that support CSS3 box shadows (ie9+ or FF3.5+, Safari3+, Chrome etc)

getajaxmenu:function($, setting){ //function to fetch external page containing the panel DIVs
	var $menucontainer=$('smoothmenu-wrap'+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){
			$menucontainer.html(content)
			smoothmenu.buildmenu($, setting)
		}
	})
},


buildmenu:function($, setting){
	var $mainmenu=$("#"+setting.mainmenuid+">ul") //reference main menu UL
	$mainmenu.parent().get(0).className=setting.classname || "smoothmenu"
	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})
		$curobj.children("a:eq(0)").css(this.istopheader? {paddingRight: smoothmenu.arrowimages.down[2]} : {}).append( //add arrow images
			'<img src="'+ (this.istopheader && setting.orientation!='v'? smoothmenu.arrowimages.down[1] : smoothmenu.arrowimages.right[1])
			+'" class="' + (this.istopheader && setting.orientation!='v'? smoothmenu.arrowimages.down[0] : smoothmenu.arrowimages.right[0])
			+ '" style="border:0;" />'
		)
		if (smoothmenu.shadow.enable && !smoothmenu.css3support){ //if shadows enabled and browser doesn't support CSS3 box shadows
			this._shadowoffset={x:(this.istopheader?$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=$('<div class="shadow'+(this.istopheader? ' toplevelshadow' : '')+'"></div>').prependTo($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
		} //the above div class"shadow" was causing the trouble in IE9 because it was previously named "ddshadow". I forgot to take the dd off of it. It was making the menu go up and down in IE. Also if the div bigmenu block tag is before the ul tag
		$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'}, smoothmenu.transition.overtime)
						if (smoothmenu.shadow.enable && !smoothmenu.css3support){
							var shadowleft=header.istopheader? $targetul.offset().left+smoothmenu.shadow.offsetx : menuleft
							var shadowtop=header.istopheader?$targetul.offset().top+smoothmenu.shadow.offsety : header._shadowoffset.y
							if (!header.istopheader && smoothmenu.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'}, smoothmenu.transition.overtime)
						}
					}
				}, smoothmenu.showhidedelay.showdelay)
			},
			function(e){
				var $targetul=$subul
				var header=$curobj.get(0)
				clearTimeout($targetul.data('timers').showtimer)
				$targetul.data('timers').hidetimer=setTimeout(function(){
					$targetul.animate({height:'hide', opacity:'hide'}, smoothmenu.transition.outtime)
					if (smoothmenu.shadow.enable && !smoothmenu.css3support){
						if (smoothmenu.detectwebkit){ //in WebKit browsers, set first child shadow's opacity to 0, as "overflow:hidden" doesn't work in them
							header.$shadow.children('div:eq(0)').css({opacity:0})
						}
						header.$shadow.css({overflow:'hidden'}).animate({height:0}, smoothmenu.transition.outtime)
					}
				}, smoothmenu.showhidedelay.hidedelay)
			}
		) //end hover
	}) //end $headers.each()
	if (smoothmenu.shadow.enable && smoothmenu.css3support){ //if shadows enabled and browser supports CSS3 shadows
		var $toplevelul=$('#'+setting.mainmenuid+' ul li ul')
		var css3shadow=parseInt(smoothmenu.shadow.offsetx)+"px "+parseInt(smoothmenu.shadow.offsety)+"px 8px #080d19" //construct CSS3 box-shadow value RF Note this is the color of the shadow
		var shadowprop=["boxShadow", "MozBoxShadow", "WebkitBoxShadow", "MsBoxShadow"] //possible vendor specific CSS3 shadow properties
		for (var i=0; i<shadowprop.length; i++){
			$toplevelul.css(shadowprop[i], css3shadow)
		}
	}
	$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($){ //ajax menu?
		if (typeof setting.contentsource=="object"){ //if external ajax menu
			smoothmenu.getajaxmenu($, setting)
		}
		else{ //else if markup menu
			smoothmenu.buildmenu($, setting)
		}
	})
}

} //end smoothmenu variable