// JavaScript Document for Metrex Website
//categoryTree Vertical Menu
//adapted from Dynamic Drive: http://www.dynamicdrive.com/style/

var menuids=["categorytree1"] //Enter id(s) of categoryTree UL menus, separated by commas

function buildsubmenus(){
	for (var i = 0; i < menuids.length; i++) {
		var ultags = document.getElementById(menuids[i]);
		if (!ultags) continue;
		ultags = ultags.getElementsByTagName("ul");
		for (var t = 0; t < ultags.length; t++) {
			ultags[t].parentNode.getElementsByTagName("a")[0].className="subitem";
			if (ultags[t].parentNode.parentNode.id==menuids[i]) //if this is a first level submenu
				ultags[t].style.left=ultags[t].parentNode.offsetWidth + "px"; //dynamically position first level submenus to be width of main menu item
			else //else if this is a sub level submenu (ul)
				ultags[t].style.left=ultags[t-1].getElementsByTagName("a")[0].offsetWidth + "px"; //position menu to the right of menu item that activated it
			ultags[t].parentNode.onmouseover = function(){
				this.getElementsByTagName("ul")[0].style.display = "block";
    			}
			ultags[t].parentNode.onmouseout=function(){
	    			this.getElementsByTagName("ul")[0].style.display = "none";
			}
		}
		for (var t = ultags.length - 1; t > -1; t--) { //loop through all sub menus again, and use "display:none" to hide menus (to prevent possible page scrollbars
			ultags[t].style.visibility = "visible";
			ultags[t].style.display = "none";
		}
	}
}

if (window.addEventListener)
	window.addEventListener("load", buildsubmenus, false)
else if (window.attachEvent)
	window.attachEvent("onload", buildsubmenus)


function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}