// JavaScript Document
// Copyright 2006-2007 javascript-array.com

var timeout	= 500;
var closetimer	= 0;
var ddmenuitem	= 0;

// 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;
	}
}

// close layer when click-out
document.onclick = mclose; 

function openPopUp(_location,_width,_height,_top,_left)
{
	if(isNaN(_top))
	_top = (window.screen.height - (_height + 50))/2;

	if(isNaN(_left))
	_left = (window.screen.width - _width)/2;
	
	var newWin;
	var args='width='+_width+',height='+_height+',left='+_left+',top='+_top+',toolbar=0,';
    args+='location=0,status=0,menubar=0,scrollbars=1,resizable=0'; 
	
	newWin = window.open(_location,"",args);
	return newWin;
}