links = document.body.getElementsByTagName('A');
for (i=0; i<links.length; i++ ) {
	if ( links[i].attributes["href"] != undefined && links[i].attributes["href"].nodeValue.indexOf("#submenu") >= 0 ) {
		links[i].onclick = function() {
			submenu = this.parentNode.getElementsByTagName("UL")[0];
			submenu.style.display = (submenu.style.display == "block") ? "none" : "block";
			this.href = "#submenu";
			return false;
		}
	}
}