var subNavID = new Array('panel1','panel2','panel3');
var disappear;
var opened;

function hide()
{
	if (opened == 1)
	{
		for (i=0; i<subNavID.length; ++i)
		{
  			document.getElementById(subNavID[i]).style.display = 'none';
		}
		opened = 0;
	}
}

function showMenu(id)
{
	hide();
	clearTimeout(disappear);
	document.getElementById(id).style.display = "block";
	opened = 1;
}

function stay()
{
	clearTimeout(disappear);
}

function leave()
{
	disappear = setTimeout("hide()",2000);
}