// JavaScript Document

var timeout	= 300;
var closetimer	= 0;
var ddmenuitem	= 0;
var parent;
// open hidden layer
function mopen(id)
{	
	// cancel close timer
	mcancelclosetime();

	// 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 mclose()
{
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}

// go close timer
function mclosetime()
{
	closetimer = window.setTimeout(mclose, timeout);
}
// cancel close timer
function mcancelclosetime()
{
	if(closetimer)
	{
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}
function show(tid)
{
	document.getElementById(tid).style.visibility="visible";
}

function show1(tid)
{
	document.getElementById(tid).style.visibility="visible";
	
}
function hide(tid,pid)
{
	document.getElementById(tid).style.visibility="hidden";
	document.getElementById(pid).style.visibility="visible";
}
function hide1(tid)
{
	document.getElementById(tid).style.visibility="hidden";
	
}
// close layer when click-out
document.onclick = mclose;