var popupwindow;

	function closePopup() {
		if(popupwindow != null && !popupwindow.closed) popupwindow.close();
	}
	
	function popup(URL,width,height,left,top)
	{
		day = new Date();
		id = day.getTime();
		eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width="+width+",height="+height+",left = "+left+",top = "+top+"');");
	}