var timer = 0;
function showMenu(myMenu) {
	clearTimeout(timer);
	$("#" + myMenu).css("visibility", "visible");
}
	
function hideMenu(myMenu) {
	$("#" + myMenu).css("visibility", "hidden");
}
	
function stopTime(myMenu) {
	clearTimeout(timer);
	$("#" + myMenu).css("visibility", "visible");
}
	
function timedClose(myMenu) {
	timer = setTimeout(function(){hideMenu(myMenu);},1000);
}