var timer;
function start_Timeout(){
	if (timer) window.clearTimeout(timer);
	timer = window.setTimeout("resetLayer()",50);
}

function clear_Timeout(){
	if (timer) window.clearTimeout(timer);
}

function showLayer(bool){
	if (bool ==true)
	{
		document.getElementById("Service").style.visibility="visible";		
		document.getElementById("Service2").style.visibility="visible";		
		clear_Timeout();
	}
	else
		start_Timeout()
}
function resetLayer(){
	document.getElementById("Service").style.visibility="hidden";
	document.getElementById("Service2").style.visibility="hidden";
}