function smart_image_popup (url, w, h)
{
	var id = "image_"+(Math.floor(Math.random()*1000000));
	var w = (parseInt(w)+40);
	var h = (parseInt(h)+40);

	var w = window.open(url, id, "width="+w+",height="+h+",resizable,status,location,scrollbars,menubar");
	if (!w) return true;

	w.focus();
	return false;
}