// JavaScript Document

var timeout         = 100;
var closetimer		= 0;
var ddmenuitem      = 0;

// Open layer
function menu_open(id)
{	
	// Cancel close timer
	menu_cancelclosetime();
	// Close old layer
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
	// Get new layer and show it
	ddmenuitem = document.getElementById(id);
	ddmenuitem.style.visibility = 'visible';
}
// Close showed layer
function menu_close()
{
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}
// Close timer
function menu_closetime()
{
	closetimer = window.setTimeout(menu_close, timeout);
}
// Cancel close timer
function menu_cancelclosetime()
{
	if(closetimer)
	{
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}
// Close layer when click-out