var state = new Array();
var timers = new Array();
function setMenu( id )
{
	//alert ("starting " + id);
	document.getElementById(id).style.visibility = 'visible';
	//alert ("ending" +e);
	//e.style.visibililty = "visible";
	state[id] = true;
    if(timers[id]) {
		clearTimeout(timers[id]);
		timers[id] = undefined;
	  }
}

function hideMenu( id )
{	
	document.getElementById(id).style.visibility = "hidden";
	state[id] = false;
}