function open_window(url,w,h)
{
	//window.open(url, '', 'left=20,top=20,width=w,height=h,toolbar=0,resizable=0');
	h=h+50;
	window.open(url, "","toolbar=no,menubar=no,location=no,personalbar=no,scrollbars=no,status=no,directories=no,resizable=no,height="+h+",width="+w);
}