function enableNav(id) {
	if (document.getElementById) {
		navRoot = document.getElementById(id);
		if(! id) { return; }
		for (x=0; x<navRoot.childNodes.length; x++) {
			node = navRoot.childNodes[x];
			if (node.nodeName.toLowerCase()=="div") {

				node.onmouseover = function() {
					if(this.className.length)
						this.className = this.className + " over";
					else
						this.className="over";
				}
				node.onmouseout = function() {
					if(this.className == "over" || this.className == "") {
						this.className = "";
					}
					else {
						var classes = new Array();
						classes = this.className.split(' ');
						classes.pop();
						this.className = classes.join(' ');
					}
				}

				for (y=0; y<navRoot.childNodes[x].childNodes.length; y++) {
					subnode = navRoot.childNodes[x].childNodes[y];
					if (subnode.nodeName.toLowerCase()=="ul") {

						subnode.onmouseover = function() {
							if(this.parentNode.className.length)
								this.parentNode.className = this.parentNode.className + " over";
							else
								this.parentNode.className="over";
							}
						subnode.onmouseout = function() {

							if(this.parentNode.className == "over" || this.parentNode.className == "") {
								this.parentNode.className = "";
							}
							else {
								var classes = new Array();
								classes = this.parentNode.className.split(' ');
								classes.pop();
								this.parentNode.className = classes.join(' ');
							}

						}

					}
				}

			}
		}

	}
}

//if (window.attachEvent)	window.attachEvent("onload", startList)
//else window.onload=startList;