var timer	= 0;
var resItem	= 0;
var delay = 5000;

function showMenu(id)
{	
	mcancelclosetime();
	if(resItem) resItem.style.visibility = 'hidden';
	resItem = document.getElementById(id);
	resItem.style.visibility = 'visible';
}

function mclose()
{
	if(resItem) resItem.style.visibility = 'hidden';
}

function delayedClose()
{
	timer = window.setTimeout(mclose, delay);
}

function mcancelclosetime()
{
	if(timer)
	{
		window.clearTimeout(timer);
		timer = null;
	}
}

document.onclick = mclose;