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