/*** Control showing/hiding of search interface to save screen space */
function toggle(id) {
	obj = document.getElementsByTagName("div");
	if(obj[id].style.display=='block') obj[id].style.display = 'none';
	else obj[id].style.display = 'block';
}

/*
===================================================
XHTML/CSS/DHTML Semantically correct drop down menu 
===================================================
Author: Sam Hampton-Smith
Site: http://www.hampton-smith.com

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.
		
Use:	Please leave this information at the
		top of this file, and it would be nice
		if you credited me/dropped me an email
		to let me know you have used the menu.
		sam AT hampton-smith.com

---------------------------------------------------
Credits: 	Inspiration/Code borrowed from Dave Lindquist (http://www.gazingus.org)
		Menu hide functionality was aided by some code I found on http://www.jessett.com/
*/

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

	if (!document.getElementById)
		document.getElementById = function() { return null; }
	
	function initialiseMenu(menu, starter, root) {
	//var menuId = menu.attributes(0).value;
		var leftstarter = false;
	
		if (menu == null || starter == null) return;
			currentMenu = menu;
	
		starter.onmouseover = function() {
			if (currentMenu) {
				//alert(this.parentNode.parentNode.id + ' ' + currentMenu.id);
				if (this.parentNode.parentNode!=currentMenu) {
					currentMenu.style.visibility = "hidden";
					

				}
				if (this.parentNode.parentNode==root) {
					tempCurrentMenu = currentMenu
					while (tempCurrentMenu.parentNode.parentNode!=root) {
						tempCurrentMenu.parentNode.parentNode.style.visibility = "hidden";
						tempCurrentMenu = tempCurrentMenu.parentNode.parentNode;
					}
				}
				currentMenu = null;
				this.showMenu();
	        	}
		}
	
		menu.onmouseover = function() {
			if (currentMenu) {
				currentMenu = null;
				this.showMenu();
	        	}
		}
		
		starter.showMenu = function() {
			
	     if (!opera) { //Non-opera web browser
			if (this.parentNode.parentNode==root) {
				menu.style.left = this.offsetLeft + "px";
				menu.style.top = this.offsetTop + this.offsetHeight + "px";
			}
			else {
			 	menu.style.left = this.offsetLeft + this.offsetWidth + "px";
			 	menu.style.top = this.offsetTop + "px";
			}
		}
		else {
			if (this.parentNode.parentNode==root) {
				menu.style.left = this.offsetLeft + "px";
				menu.style.top = this.offsetHeight + "px";
			}
			else {
			 	menu.style.left = this.offsetWidth + "px";
			 	menu.style.top = this.offsetTop + "px"; //menu.style.top - menu.style.offsetHeight + "px";
			}
	
		}
		
		menu.style.visibility = "visible";
		currentMenu = menu;
			
			
		} //end show 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) {
				//alert(this.id);
				mytimer = setInterval("killMenu('" + this.id + "', '" + root.id + "');", 1200); //Milliseconds to hold menu open
				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();
		}

		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";
			//menu.hideMenu();
		}
}
	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;
		}
	} 

	//Image preloader
	var arImages=new Array('site/nav_link_hover_bg.gif');
	function Preload()
	{
		var temp = Preload.arguments; 
		for(x=0; x < temp.length; x++) {
		arImages[x]=new Image();
		arImages[x].src=Preload.arguments[x];
		}
	}
	
	//XHTML compliant new window links (called from body load of the menu script)
	function externalLinks() {
	 if (!document.getElementsByTagName) return;
	 var anchors = document.getElementsByTagName("a");
	 for (var i=0; i<anchors.length; i++) {
	   var anchor = anchors[i];
	   if (anchor.getAttribute("href") &&
	       anchor.getAttribute("rel") == "external")
	     anchor.target = "_blank";
	 }
	}
	
	//Hide line item detail rows initially (DOESN"T WORK IN IE)
	function hideAll() {
		if(document.getElementsByTagName('tr')) {
			var rows = document.getElementsByTagName('tr'); //All rows
			for (var i=0; i<rows.length; i++) {
				var thisRow = rows[i];
				if(thisRow.className && thisRow.className=='detailRow') {
					var thisID = thisRow.getAttribute('id'); //Get the ID of the current, relevant row
					var hide = document.getElementById(thisID);
					if(hide) hide.style.display='none'; //<-- IE reports error here. Says "COuld not get the display property, invalid argument";
				}
			}
		}
	}
	
	window.onload = function() {
		var root = document.getElementById("menuList");
		getMenus(root, root);
		
		externalLinks(); //XHTML external windows
		Preload('site/extend_up.png'); //Static image preloads (done for every page)
		hideAll();
		obsReplace();
	}


	function getMenus(elementItem, root) {
	var selectedItem;
	var menuStarter;
	var menuItem;
	//alert("in getmenus");
	//alert(elementItem.childNodes.length);
	for (var x=0;x<elementItem.childNodes.length;x++) {
		//alert(elementItem.childNodes[x].nodeName);
		if (elementItem.childNodes[x].nodeName=="LI") {
			//alert("Yes!");
			if (elementItem.childNodes[x].getElementsByTagName("UL").length>0) {
				//alert("Set up");
				menuStarter = elementItem.childNodes[x].getElementsByTagName("A").item(0);
				menuItem = elementItem.childNodes[x].getElementsByTagName("UL").item(0);
				getMenus(menuItem, root);
				initialiseMenu(menuItem, menuStarter, root);
			}
		}
	}
	//return true;
}


//Obscure email replacement
function obsReplace() {
	
	var spans = document.getElementsByTagName('span');
	if(!spans) return;
	for(i=0; i<spans.length; i++) {
		if(spans[i].className.search(/obscure/) != -1) {
			addy = spans[i].innerHTML.replace(/\[ ?at ?\]/g, '@');
			addy = addy.replace(/ /g, '');
			addy = addy.replace(/\[ ?dot ?\]/g, '.');
			var link = document.createElement('a');
			if(spans[i].title && spans[i].title!='') {
				link.title = spans[i].title;
				link.title = link.title.replace(/\[email\]/g, addy);
			}
			link.href = 'mailto:' + addy;
			link.innerHTML = addy;
			spans[i].innerHTML = '';
			spans[i].appendChild(link);
		}
	}
}

Preload(arImages);