var currentImage = 0;
function showImage(s, doOpa) {
  hideImage("false");
  if (doOpa == "true") {
    new Effect.Opacity('framewrappertable', { from: 1, to: 0.3, duration: 0.2 });
  }
  document.getElementById('dimensionInformation').style.visibility = 'hidden';
  $("absimg").src = s.src;
  $("abstext1").value = s.title;

  if (s.width > s.height) {
    $("absdiv").style.marginTop = "-220px";
    $("absdiv").style.marginLeft = "-400px";
  } else {
    $("absdiv").style.marginTop = "-350px";
    $("absdiv").style.marginLeft = "-220px";
  }
  $("absdiv").style.display = "block";
}
function hideImage(doOpa) {
  $("absdiv").style.display = "none";
  document.getElementById('dimensionInformation').style.visibility = 'visible';
  if (doOpa == "true") {
    new Effect.Opacity('framewrappertable', { from: 0.3, to: 1, duration: 0 });
  }
}
var prevImage = function() {
  currentImage -= 1;
  var tmpImage = new Image();
  tmpImage.src = getImageSrcFor(currentImage);
  tmpImage.title = getImageTxtFor(currentImage);
  Event.observe(tmpImage, "onload", showImage(tmpImage, 'false'));
}
var nextImage = function() {
  currentImage += 1;
  var tmpImage = new Image();
  tmpImage.src = getImageSrcFor(currentImage);
  tmpImage.title = getImageTxtFor(currentImage);
  Event.observe(tmpImage, "onload", showImage(tmpImage, 'false'));
}