function menuinit() {

	atags =	document.getElementsByTagName("a");

	i=0;

	while (atag = atags[i]) {
		if (atag.className == "topcat") {
			atag.onmouseover = expandfunc;
		}

		i++;
	}

	function expandfunc(e) {

		if (!e) var e = window.event;

		target = e.target;
		if (!target) target = e.srcElement;

		hidefunc();

		if(document.getElementById(target.parentNode.id+"_sub")) {
			document.getElementById(target.parentNode.id).className = "over";
			document.getElementById(target.parentNode.id+"_sub").style.display = "block";
		}

	}

	function hidefunc() {
	
		trtags = document.getElementsByTagName("ul");

		i=0;
		while (trtag = trtags[i]) {		
			if (trtag.className == "showhide") trtag.style.display = "none";
		        i++;
		}

		tdtags = document.getElementsByTagName("td");

		i=0;
		while (tdtag = tdtags[i]) {		
			if (tdtag.className == "over") tdtag.className = "";
		        i++;
		}

	}

	document.body.onclick = clickhidefunc;

	function clickhidefunc(e) {
		if (!e) var e = window.event;
		target = e.target;
		if (!target) target = e.srcElement;
		if (target.nodeName != "LI") hidefunc();
	}

	function testover() {
		this.className = "over";
	}

	function testout() {
		this.className = "";
	}

}