var popupWindow='';

function openWindow(url,width,height){

	if(!popupWindow.closed && popupWindow.location){
		popupWindow.location.href=url;
		if(popupWindow.availWidth!=width || popupWindow.availHeight!=height){
			popupWindow.resizeTo(width+6,height+54);
		}
	}else{
		popupWindow=window.open(url,'popup','directories=no,height='+height+',width='+width+',location=no,menubar=no,status=no,toolbar=no');
	}
	if (window.focus) popupWindow.focus()
}