function showmenu(itemtoshow, head){
	/***if(!itemtoshow){
	var itemtoshow = 'item1';
	var head  = 'sub1';
	}***/
	if(document.getElementById(itemtoshow)){

		divs = document.getElementsByTagName('div');
		for(j=0;j<divs.length;j++){
			if(divs[j].className=='subnav_item'){
				divs[j].style.display='none';
			}
			if(divs[j].className=='subnav_menu'){
				divs[j].style.cursor='pointer';
			}
		}

		document.getElementById(itemtoshow).style.display='block';
		document.getElementById(head).style.cursor='text';
	}

}

function rollOver(id, state) {
	switch (state) {
		case "on":
			document.getElementById(id).src = document.getElementById(id).src.replace("_off", "_on");
			break;
		case "off":
			document.getElementById(id).src = document.getElementById(id).src.replace("_on", "_off");
			break;
		default:
			break;
	}
}

function compliantswap() {
	if (!document.getElementById) return
	var aPreLoad = new Array();;var sTempSrc;;var aImages = document.getElementsByTagName('img');
	for (var i = 0; i < aImages.length; i++) {if (aImages[i].className == 'swap') {var src = aImages[i].getAttribute('src');;var ftype = src.substring(src.lastIndexOf('.'), src.length);	var hsrc = src.replace(ftype, '-o'+ftype);aImages[i].setAttribute('hsrc', hsrc);aPreLoad[i] = new Image();aPreLoad[i].src = hsrc;aImages[i].onmouseover = function() {sTempSrc = this.getAttribute('src');this.setAttribute('src', this.getAttribute('hsrc'));}
	aImages[i].onmouseout = function() {if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('-o'+ftype, ftype);this.setAttribute('src', sTempSrc);}}}}

	function addLoadEvent(func) { var oldonload = window.onload;  if (typeof window.onload != 'function') { window.onload = func; } else { window.onload = function() {oldonload(); func(); } } }
	addLoadEvent(compliantswap);
	addLoadEvent(showmenu);