/* Flip between two images with a -f and -b suffix */
var fifront = true;
function flipImage( stocId )
{
  fifront = !fifront;
  var img = document.getElementById("flippableImage");
  if (img != null)
  {
    var url = "stockimg/" + stocId;
    if (fifront)
    {
      url += "-f.jpg";
    } else {
      url += "-b.jpg";
    }

    img.src = url;
  }
}


/* Cycle images */
var ie=document.all;

function slideit( prefix, maximage )
{
  if (!document.images) return;
  whichimage=Math.floor( Math.random()*maximage + 1 );

  if (ie) document.images.slide.filters[0].apply();
  document.images.slide.src=prefix+whichimage+".jpg";
  if (ie) document.images.slide.filters[0].play();

  setTimeout("slideit('"+prefix+"', "+maximage+")",3000);
}