/*

=================================================================================================
>> EASYMENU - XHTML/CSS/DHTML Semantically correct drop down menu 
=================================================================================================
Description:	This script takes a nested set of <ul>s and turns it into a fully functional
		DHTML menu. All that is required is the correct use of class names, and
		the application of some CSS. For the latest version of this script, go to
		http://www.easymenu.co.uk
	

Copyright:	This script is copyright 2004-2005 easymenu.co.uk. All rights reserved.

==================================================================================================

*/

//	document.write("<link rel='stylesheet' href='css/navigation.css' type='text/css' />");//

	var currentMenu = null;
	var lastMenuStarter = null;
	var mytimer = null;
	var timerOn = false;
	var opera = window.opera ? true : false;

	if (!document.getElementById)
		document.getElementById = function() { return null; }

	function initialiseDummy(dummy, root) {
		dummy.onmouseover = function() {
			containingMenu = this.parentNode.parentNode;
			for (var x=0;x<containingMenu.childNodes.length;x++) {
				if (containingMenu.childNodes[x].nodeName.toUpperCase()=="LI") {
					if (containingMenu.childNodes[x].getElementsByTagName("ul").length>0) {
						containingMenu.childNodes[x].getElementsByTagName("UL").item(0).style.visibility = 'hidden';
					}
				}
			}
		}
		dummy.onfocus = function() {
			dummy.onmouseover();
		}
	}
	
	function initialiseMenu(menu, starter, root) {
		var leftstarter = false;
	
		if (menu == null || starter == null) return;
			currentMenu = menu;
	
		starter.onmouseover = function() {
			if (currentMenu) {
				if (this.parentNode.parentNode!=currentMenu) {
					currentMenu.style.visibility = "hidden";
					hideAllMenus(currentMenu, root);

				}
				if (this.parentNode.parentNode==root) {
					while (currentMenu.parentNode.parentNode!=root) {
						currentMenu.parentNode.parentNode.style.visibility = "hidden";
						currentMenu = currentMenu.parentNode.parentNode;
					}
				}
				currentMenu = null;
				this.showMenu();
	        	}
		}
	
		menu.onmouseover = function() {
			if (currentMenu) {
				currentMenu = null;
				this.showMenu();
	        	}
		}	
	
		starter.showMenu = function() {
			if (!opera) {
				if (this.parentNode.parentNode==root) {
					menu.style.left = this.offsetLeft + "px";
					menu.style.top = this.offsetTop + this.offsetHeight + "px";
					if (menu.offsetWidth < this.offsetWidth) menu.style.width = this.offsetWidth;
				}
				else {
				 	menu.style.left = this.offsetLeft + this.offsetWidth + "px";
				 	menu.style.top = this.offsetTop + "px";
				}
			}
			else {
				var rootOffset = root.offsetLeft;
				if (this.parentNode.parentNode==root) {
					menu.style.left = this.offsetLeft - rootOffset + "px";
					menu.style.width = this.offsetWidth;
					menu.style.top = this.offsetHeight + "px";
				}
				else {
				 	menu.style.left = this.offsetWidth - rootOffset + "px";
				 	menu.style.top = this.offsetTop + "px"; //menu.style.top - menu.style.offsetHeight + "px";
				}

			}
			menu.style.visibility = "visible";
			currentMenu = menu;
		}

		starter.onfocus	 = function() {
			starter.onmouseover();
		}
	
		menu.onfocus	 = function() {
//			currentMenu.style.visibility="hidden";
		}

		menu.showMenu = function() {
			menu.style.visibility = "visible";
			currentMenu = menu;
			stopTime();
		}

		menu.hideMenu = function()  {
			if (!timerOn) {
				mytimer = setInterval("killMenu('" + this.id + "', '" + root.id + "');", 2000);
				timerOn = true;
				for (var x=0;x<menu.childNodes.length;x++) {
					if (menu.childNodes[x].nodeName=="LI") {
						if (menu.childNodes[x].getElementsByTagName("UL").length>0) {
							menuItem = menu.childNodes[x].getElementsByTagName("UL").item(0);
							menuItem.style.visibility = "hidden";
						}
					}
				}
			}
		}

		menu.onmouseout = function(event) {
			this.hideMenu();
		}
		menu.onblur = function() {
			this.hideMenu();
		}
		starter.onmouseout = function() {
			for (var x=0;x<menu.childNodes.length;x++) {
				if (menu.childNodes[x].nodeName=="LI") {
					if (menu.childNodes[x].getElementsByTagName("UL").length>0) {
						menuItem = menu.childNodes[x].getElementsByTagName("UL").item(0);
						menuItem.style.visibility = "hidden";
					}
				}
			}
			menu.style.visibility = "hidden";
		}
}
	function killMenu(menu, root) {
		var menu = document.getElementById(menu);
		var root = document.getElementById(root);
		menu.style.visibility = "hidden";
		for (var x=0;x<menu.childNodes.length;x++) {
			if (menu.childNodes[x].nodeName=="LI") {
				if (menu.childNodes[x].getElementsByTagName("UL").length>0) {
					menuItem = menu.childNodes[x].getElementsByTagName("UL").item(0);
					menuItem.style.visibility = "hidden";
				}
			}
		}
		while (menu.parentNode.parentNode!=root) {
			menu.parentNode.parentNode.style.visibility = "hidden";
			menu = menu.parentNode.parentNode;
		}
		stopTime();
	}
	function stopTime() {
		if (mytimer) {
		 	 clearInterval(mytimer);
			 mytimer = null;
			 timerOn = false;
		}
	} 

window.onload = function() { 
		if (typeof P7_initTP!="undefined"){
		P7_initTP(1,0);}
		var root = document.getElementById("menuList");
		var rootOffset = root.offsetLeft;
		getMenus(root, root); 
		
		
	}

function getMenus(elementItem, root) {
	var selectedItem;
	var menuStarter;
	var menuItem;
	for (var x=0;x<elementItem.childNodes.length;x++) {
		if (elementItem.childNodes[x].nodeName.toUpperCase()=="LI") {
			if (elementItem.childNodes[x].getElementsByTagName("ul").length>0) {
				menuStarter = elementItem.childNodes[x].getElementsByTagName("A").item(0);
				menuItem = elementItem.childNodes[x].getElementsByTagName("UL").item(0);
				getMenus(menuItem, root);
				initialiseMenu(menuItem, menuStarter, root);
			}
			else {
				initialiseDummy(elementItem.childNodes[x].getElementsByTagName("A").item(0), root);
			}
		}
	}
}
function hideAllMenus(elementItem, root) {
	for (var x=0;x<elementItem.childNodes.length;x++) {
		if (elementItem.childNodes[x].nodeName.toUpperCase()=="LI") {
			if (elementItem.childNodes[x].getElementsByTagName("ul").length>0) {
				elementItem.childNodes[x].getElementsByTagName("UL").item(0).style.visibility = 'hidden';
				hideAllMenus(elementItem.childNodes[x].getElementsByTagName("UL").item(0), root);
			}
		}
	}
}