function DisplayImg(nIdImg, w, h)
{
	config='toolbar=no,location=no,directories=no,status=no,menubar=no,width='+w+',height='+h;
        
	config += 'scrollbars=no,resizable=no, top='+((screen.height / 2) - h / 2)+',left='+((screen.width / 2) - w / 2);

     pop = window.open("/display_img.php?id="+nIdImg,"pop",config);


}