function openExtraWindow( URI, width, height ) {
		if (!width) var width = '550';
		if (!height) var height = '400';
		window.open( URI, 'extraWindow', 'toolbar=no,directories=no,status=no,menubar=no,scrollbars=yes,location=no,width='+width+',height='+height+',screenX=200,screenY=150,resizable=yes' )
}

// updates main window and closes this window
function updateMainWindow (uri) {
	window.top.opener.location = uri;
	window.top.close();
}
			

startList = function() {
	if (document.all&&document.getElementById) {
		navRoot = document.getElementById("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;