function BlockShowHide(idblock) {
  var obj = document.getElementById(idblock);
  var disp = obj.style.display;
  if (disp == 'block') {obj.style.display = 'none'}
  else {obj.style.display = 'block';}

  var obj = document.getElementById('left_bottom');
  obj.style.bottom = '0';
}
//----------------------------------------------------------------------------
function video_open(f,w,h) {
	if (w == null) {w = 600};
	if (h == null) {h = 500};
  window.open("/video.php?f=" + f + "&width=" + w + "&height=" + h, "", "help=no; status=no,location=no,toolbar=no,menubar=0,directories=no,height=" + h + ",width=" + w + ",top=100,left=300,dependent=yes,scrollbars=no");
}