//Drop Down Tabs Menu- Author: Dynamic Drive (http://www.dynamicdrive.com)
//Created: May 16th, 07'

var tabdropdown={	disappeardelay :200, // set delay in miliseconds before
											// menu disappears onmouseout
	disablemenuclick :false, // when user clicks on a menu item with a drop
								// down menu, disable menu item's link?
	enableiframeshim :1, // 1 or 0, for true or false

	// No need to edit beyond here////////////////////////
	dropmenuobj :null,
	ie :document.all,
	firefox :document.getElementById && !document.all,
	previousmenuitem :null,
	currentpageurl :window.location.href.replace(
			"http://" + window.location.hostname, "").replace(/^\// , ""),
																	// //get
																	// current
																	// page url
																	// (minus
																	// hostname,
																	// ie:
																	// http://www.dynamicdrive.com/)

	getposOffset : function(what, offsettype) {
		var totaloffset = (offsettype == "left") ? what.offsetLeft
				: what.offsetTop;
		var parentEl = what.offsetParent;
		while (parentEl != null) {
			totaloffset = (offsettype == "left") ? totaloffset
					+ parentEl.offsetLeft : totaloffset + parentEl.offsetTop;
			parentEl = parentEl.offsetParent;
		}
		return totaloffset;
	},

	showhide : function(obj, e, obj2) { // obj refers to drop down menu, obj2
										// refers to tab menu item mouse is
										// currently over
		if (this.ie || this.firefox)
			this.dropmenuobj.style.left = this.dropmenuobj.style.top = "-500px"
		if (e.type == "click" && obj.visibility == hidden || e.type == "mouseover") {
			if (obj2.parentNode.className.indexOf("Current Selected") == -1) {// if tab
																	// isn't a
																	// default
																	// selected
																	// one
				obj2.parentNode.className = "Selected"
			obj.visibility = "visible"
			}
		} else if (e.type == "click")
			obj.visibility = "hidden"
	},

	iecompattest : function() {
		return (document.compatMode && document.compatMode != "BackCompat") ? document.documentElement
				: document.body
	},

	clearbrowseredge : function(obj, whichedge) {
		var edgeoffset = 0
		if (whichedge == "rightedge") {
			var windowedge = this.ie && !window.opera ? this.standardbody.scrollLeft
					+ this.standardbody.clientWidth - 15
					: window.pageXOffset + window.innerWidth - 15
			this.dropmenuobj.contentmeasure = this.dropmenuobj.offsetWidth
			if (windowedge - this.dropmenuobj.x < this.dropmenuobj.contentmeasure) // move
																					// menu
																					// to
																					// the
																					// left?
				edgeoffset = this.dropmenuobj.contentmeasure - obj.offsetWidth
		} else {
			var topedge = this.ie && !window.opera ? this.standardbody.scrollTop
					: window.pageYOffset
			var windowedge = this.ie && !window.opera ? this.standardbody.scrollTop
					+ this.standardbody.clientHeight - 15
					: window.pageYOffset + window.innerHeight - 18
			this.dropmenuobj.contentmeasure = this.dropmenuobj.offsetHeight
			if (windowedge - this.dropmenuobj.y < this.dropmenuobj.contentmeasure) { // move
																						// up?
				edgeoffset = this.dropmenuobj.contentmeasure + obj.offsetHeight
				if ((this.dropmenuobj.y - topedge) < this.dropmenuobj.contentmeasure) // up
																						// no
																						// good
																						// either?
					edgeoffset = this.dropmenuobj.y + obj.offsetHeight
							- topedge
			}
			this.dropmenuobj.firstlink.style.borderTopWidth = (edgeoffset == 0) ? 0
					: "1px" // Add 1px top border to menu if dropping up
		}
		return edgeoffset
	},

	dropit : function(obj, e, dropmenuID) {
		if (this.dropmenuobj != null) { // hide previous menu
			this.dropmenuobj.style.visibility = "hidden" // hide menu
			if (this.previousmenuitem != null && this.previousmenuitem != obj) {
				if (this.previousmenuitem.parentNode.className
						.indexOf("Current Selected") == -1) // If the tab isn't a
													// default selected one
					this.previousmenuitem.parentNode.className = ""
			}
		}
		this.clearhidemenu()
		if (this.ie || this.firefox) {
			obj.onmouseout = function() {
				tabdropdown.delayhidemenu(obj)
			}
			obj.onclick = function() {
				return !tabdropdown.disablemenuclick
			} // disable main menu item link onclick?
			this.dropmenuobj = document.getElementById(dropmenuID)
			this.dropmenuobj.onmouseover = function() {
				tabdropdown.clearhidemenu()
			}
			this.dropmenuobj.onmouseout = function(e) {
				tabdropdown.dynamichide(e, obj)
			}
			this.dropmenuobj.onclick = function() {
				tabdropdown.delayhidemenu(obj)
			}
			this.showhide(this.dropmenuobj.style, e, obj)
			this.dropmenuobj.x = this.getposOffset(obj, "left")
			this.dropmenuobj.y = this.getposOffset(obj, "top")
			this.dropmenuobj.style.left = this.dropmenuobj.x
					- this.clearbrowseredge(obj, "rightedge") + "px"
			this.dropmenuobj.style.top = this.dropmenuobj.y
					- this.clearbrowseredge(obj, "bottomedge")
					+ obj.offsetHeight + 1 + "px"
			this.previousmenuitem = obj // remember main menu item mouse moved
										// out from (and into current menu item)
			this.positionshim() // call iframe shim function
		}
	},

	contains_firefox : function(a, b) {
		while (b.parentNode)
			if ((b = b.parentNode) == a)
				return true;
		return false;
	},

	dynamichide : function(e, obj2) { // obj2 refers to tab menu item mouse is
										// currently over
		var evtobj = window.event ? window.event : e
		if (this.ie && !this.dropmenuobj.contains(evtobj.toElement))
			this.delayhidemenu(obj2)
		else if (this.firefox
				&& e.currentTarget != evtobj.relatedTarget
				&& !this.contains_firefox(evtobj.currentTarget,
						evtobj.relatedTarget))
			this.delayhidemenu(obj2)
	},

	delayhidemenu : function(obj2) {
		this.delayhide = setTimeout( function() {
			tabdropdown.hideshim();
			tabdropdown.dropmenuobj.style.visibility = 'hidden';
			if (obj2.parentNode.className.indexOf('Current Selected') == -1)
				obj2.parentNode.className = ''
		}, this.disappeardelay) // hide menu
	},

	clearhidemenu : function() {
		if (this.delayhide != "undefined")
			clearTimeout(this.delayhide)
	},

	positionshim : function() { // display iframe shim function
		if (this.enableiframeshim && this.shimobject) {
			if (this.dropmenuobj.style.visibility == "visible") {
				this.shimobject.style.width = this.dropmenuobj.offsetWidth
						+ "px"
				this.shimobject.style.height = this.dropmenuobj.offsetHeight
						+ "px"
				this.shimobject.style.left = this.dropmenuobj.style.left
				this.shimobject.style.top = this.dropmenuobj.style.top
				// \\alert(this.shimobject.style.top);
			}
			this.shimobject.style.display = (this.dropmenuobj.style.visibility == "visible") ? "block"
					: "none"
		}
	},

	hideshim : function() {
		if (this.enableiframeshim && this.shimobject)
			this.shimobject.style.display = 'none'
	},

	isSelected : function(menuurl) {
		var menuurl = menuurl.replace("http://" + menuurl.hostname, "")
				.replace(/^\// , "")
		return (tabdropdown.currentpageurl == menuurl)
	},

	init : function(menuid, dselected) {
		if (this.enableiframeshim && typeof this.shimobject == 'undefined')
			this.shimobject = (this.shimobject = document
					.getElementById('iframe_shim')) ? this.shimobject : null;
		this.standardbody = (document.compatMode == "CSS1Compat") ? document.documentElement
				: document.body // create reference to common "body" across
								// doctypes
		var menuitems = document.getElementById(menuid).getElementsByTagName(
				"a")
		for ( var i = 0; i < menuitems.length; i++) {
			if (menuitems[i].getAttribute("rel")) {
				var relvalue = menuitems[i].getAttribute("rel")
				document.getElementById(relvalue).firstlink = document
						.getElementById(relvalue).getElementsByTagName("a")[0]
				menuitems[i].onmouseover = function(e) {
					var event = typeof e != "undefined" ? e : window.event
					tabdropdown.dropit(this, event, this.getAttribute("rel"))
				}
			}
			if (dselected == "auto" && typeof setalready == "undefined"
					&& this.isSelected(menuitems[i].href)) {
				menuitems[i].parentNode.className += " Selected"
				var setalready = true
			} else if (parseInt(dselected) == i)
				menuitems[i].parentNode.className += " Selected"
		}
	}

}