alllayers = new Array("","menu1","menu2","menu3","menu4","menu5");
position = true

function timers()
{
	this.time1=null;
}

function showlayers(layname)
{
	clearTimeout(timers.time1);
	if (document.getElementById) {
		for (i= 1;i <= alllayers.length-1;i++) {
			document.getElementById(alllayers[i]).style.visibility='hidden';
		}
		document.getElementById(layname).style.visibility='visible';
	}
	else if (document.all) {
		for (i= 1;i <= alllayers.length-1;i++) {
			document.all[alllayers[i]].style.visibility='hidden';
		}
		document.all[layname].style.visibility='visible';
	}
	else if (document.layers) {
		for (i= 1;i <= alllayers.length-1;i++) {
			document.layers[alllayers[i]].visibility='hide';
		}
		document.layers[layname].visibility='show';
	}
}

function hidelayers()
{
	timers.time1=setTimeout("hideall();",2500);
}

function hideall()
{
	if (document.getElementById) {
		for (i= 1;i <= alllayers.length-1;i++) {
			document.getElementById(alllayers[i]).style.visibility='hidden';
		}
	} else if (document.all) {
		for (i= 1;i <= alllayers.length-1;i++) {
			document.all[alllayers[i]].style.visibility='hidden';
		}
	} else if (document.layers) {
		for (i= 1;i <= alllayers.length-1;i++) {
			document.layers[alllayers[i]].visibility='hide';
		}
	}
}