//** 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.


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', 'down.gif', 23], right: ['rightarrowclass', 'right.gif'] },

	transition: { overtime: 300, outtime: 300 }, //duration of slide in/ out animation, in milliseconds
	shadow: { enable: true, offsetx: 5, offsety: 5 },

	///////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' })
			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 = $(this).children("ul:eq(0)")
				this._offsets = { left: $(this).offset().left, top: $(this).offset().top }
				var menuleft = this.istopheader && setting.orientation != 'v' ? 0 : this._dimensions.w
				menuleft = (this._offsets.left + menuleft + this._dimensions.subulw > $(window).width()) ? (this.istopheader && setting.orientation != 'v' ? -this._dimensions.subulw + this._dimensions.w : -this._dimensions.w) : menuleft //calculate this sub menu's offsets from its parent
				if ($targetul.queue().length <= 1) { //if 1 or less queued animations
					$targetul.css({ left: menuleft + "px", width: this._dimensions.subulw + 'px' }).animate({ height: 'show', opacity: 'show' }, ddsmoothmenu.transition.overtime)
					if (smoothmenu.shadow.enable) {
						var shadowleft = this.istopheader ? $targetul.offset().left + ddsmoothmenu.shadow.offsetx : menuleft
						var shadowtop = this.istopheader ? $targetul.offset().top + smoothmenu.shadow.offsety : this._shadowoffset.y
						if (!this.istopheader && ddsmoothmenu.detectwebkit) { //in WebKit browsers, restore shadow's opacity to full
							this.$shadow.css({ opacity: 1 })
						}
						this.$shadow.css({ overflow: '', width: this._dimensions.subulw + 'px', left: shadowleft + 'px', top: shadowtop + 'px' }).animate({ height: this._dimensions.subulh + 'px' }, ddsmoothmenu.transition.overtime)
					}
				}
			},
			function(e) {
				var $targetul = $(this).children("ul:eq(0)")
				$targetul.animate({ height: 'hide', opacity: 'hide' }, ddsmoothmenu.transition.outtime)
				if (smoothmenu.shadow.enable) {
					if (ddsmoothmenu.detectwebkit) { //in WebKit browsers, set first child shadow's opacity to 0, as "overflow:hidden" doesn't work in them
						this.$shadow.children('div:eq(0)').css({ opacity: 0 })
					}
					this.$shadow.css({ overflow: 'hidden' }).animate({ height: 0 }, ddsmoothmenu.transition.outtime)
				}
			}
		) //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

	//Initialize Menu instance(s):