function CreateWindow(url) {
		topL=20;
		leftL=20;
		width=640;
		height=480;
		toolbar=1;
		scrollbar=1;
  wName='popUp';
		width = (arguments.length>1)?arguments[1]:width; // option to pass in width
		height = (arguments.length>2)?arguments[2]:height; // option to pass in height
	 toolbar = (arguments.length>3)?arguments[3]:toolbar; // option to turn toolbar off
	 scrollbar = (arguments.length>4)?arguments[4]:scrollbar; // option to turn scrollbar off
  wName = (arguments.length>5)?arguments[5]:wName; // option to pass in window name

		var str="toolbar="+ toolbar +",location=0,directories=0,status=0,menubar=0,scrollbars="+ scrollbar +",width="+ width +",height="+ height +",screenX="+ leftL +",screenY="+ topL +",left="+ leftL +",top="+ topL +",resizable=1";
  var Pwin = window.open(url,wName,str,true)
  Pwin.focus();
}

startList = function() {
	if (document.all&&document.getElementById) {
		navRoot = document.getElementById("main_nav");
		for (i=0; i<navRoot.childNodes.length; i++) {
			node = navRoot.childNodes[i];
			if (node.nodeName=="LI") {
				node.onmouseover=function() {
					this.className+=" over";
				}
				node.onmouseout=function() {
					this.className=this.className.replace(" over", "");
				}
			}
		}
	}
}
window.onload=startList;