function preload() {
  if (!document.images) return;
  var ar = new Array();
  var arguments = preload.arguments;
  for (var i = 0; i < arguments.length; i++) {
    ar[i] = new Image();
    ar[i].src = arguments[i];
  }
}

function pic_caption(image,caption)
  {
  var txt=document.getElementById("gallery_caption")
  var gallery_img = image;
  var gallery_caption = caption;
  txt.innerHTML= gallery_caption;
  document.MyImage.src= gallery_img;
  }

function podcast_play(div_id,qtfile,qtmime,qtimage)
  {
  var txt=document.getElementById(div_id)
  var qtplay = '<object classid="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" codebase="http://www.apple.com/qtactivex/qtplugin.cab" style="width:200px;height:200px;"><param name="SRC" value="' + qtfile + '" /><param name="TARGET" value="quicktimeplayer" /><param name="autoplay" value="true" /><param name="loop" value="false" /><param name="controller" value="true" /><object data="' + qtfile + '" type="' + qtmime + '" style="width:200px;height:200px;"></object></object><div style="margin-left:0px;margin-top:0px;margin-bottom:7px;"><a class="content" href="javascript:show_image(\''+div_id+'\',\''+qtfile+'\',\''+qtmime+'\',\''+qtimage+'\')">Click to close</a></div>';
  txt.innerHTML= qtplay;
}

function show_image(div_id,qtfile,qtmime,qtimage)
  {
  var txt=document.getElementById(div_id)
  var qtout = '<img src="podcast_images/'+ qtimage +'" style="width:165px;margin:5px;border:none;" /><div style="margin-left:0px;margin-top:0px;margin-bottom:7px;"><a class="content" href=\"javascript:podcast_play(\''+div_id+'\',\''+qtfile+'\',\''+qtmime+'\',\''+qtimage+'\');\">Click to play again</a></div>';
  txt.innerHTML= qtout;
}