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 openWindow(url,w,h,tb,stb,l,mb,sb,rs,x,y){
var t=(document.layers)? ',screenX='+x+',screenY='+y: ',left='+x+',top='+y; //A LITTLE CROSS-BROWSER CODE FOR WINDOW POSITIONING
tb=(tb)?'yes':'no'; stb=(stb)?'yes':'no'; l=(l)?'yes':'no'; mb=(mb)?'yes':'no'; sb=(sb)?'yes':'no'; rs=(rs)?'yes':'no';
var x=window.open(url, 'newWin'+new Date().getTime(), 'scrollbars='+sb+',width='+w+',height='+h+',toolbar='+tb+',status='+stb+',menubar='+mb+',links='+l+',resizable='+rs+t);
x.focus();
}