function open_window_hw(url, height, width)	
{
	width = width + 60;
	height = height + 80;
	var left = (screen.availWidth - width) / 2;
	var top = (screen.availHeight - height) / 2;

	window.open(""+url+"", "", "height="+height+",width="+width+",left="+left+",top="+top+",status=no,toolbar=no,menubar=no,location=no,scrollbars=yes, resizable=yes");
}