// 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]).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);
}