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;