//** 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
jQuery.noConflict();

jQuery(document).ready (function() {

	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:['downarrowclass', 'images/template/pixel.gif', 23], right:['rightarrowclass', 'images/template/right.gif']},
		transition: {overtime: 300, outtime: 300}, //duration of slide in/ out animation, in milliseconds
		shadow: {enable: false, offsetx: 3, offsety: 3}, //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})
				$curobj.children("a:eq(0)").css(this.istopheader? {paddingRight: smoothmenu.arrowimages.down[2]} : {}).append( //add arrow images
					'<img src="'+ (this.istopheader && setting.orientation!='v'? smoothmenu.arrowimages.down[1] : smoothmenu.arrowimages.right[1])
					+'" class="' + (this.istopheader && setting.orientation!='v'? smoothmenu.arrowimages.down[0] : smoothmenu.arrowimages.right[0])
					+ '" style="border:0;" />'
				)
				if (smoothmenu.shadow.enable){
					this._shadowoffset={x:(this.istopheader?$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
	
	ddsmoothmenu.init({
		mainmenuid: "smoothmenu", //menu DIV id
		orientation: 'v', //Horizontal or vertical menu: Set to "h" or "v"
		classname: 'ddsmoothmenu-v', //class added to menu's outer DIV
		//customtheme: ["#1c5a80", "#18374a"],
		contentsource: "markup" //"markup" or ["container_id", "path_to_menu_file"]
	})

});