function initWindow() {
	if (document.all&&document.getElementById) {
		navRoot = document.getElementById("navi");
		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=initWindow;