function open_video_sat(sat) {
   the_width = 495;
   the_height = 510;
   the_posx = (screen.width - the_width) / 2;
   the_posy = (screen.height - the_height) / 2;
   the_popup_sat = window.open("popup_sat_1.php?video="+sat+"", "popup_video_satellite", "toolbar=no,status=no,scrollbars=auto,location=no,menubar=no,directories=no,resizable=yes,left="+the_posx+",top="+the_posy+",width="+the_width+",height="+the_height);
   the_popup_sat.focus();
}