timer = new Array();

function opensubnav(id)
{
	if(timer[id] != 0)
		clearTimeout(timer[id]);
		
	document.getElementById(id).style.display = "block";
}

function closesubnav(id)
{
	timer[id] = setTimeout("closesubnav2('" + id + "')",200);
}

function closesubnav2(id)
{
	document.getElementById(id).style.display = "none";
}