dropDown = 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.id.length > 1) {

				node.onmouseover=function() {

					this.className+=" over";

				}

				node.onmouseout=function() {

					this.className=this.className.replace(" over", "");

				}

			}

		}

	}

}



function start() {

  dropDown();

}



window.onload = start;