function changeCell(which,how) {
	cell = document.getElementById(which);
	cell.className = how;
}

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