<!--
      var caption = new Array(1);
      caption[0] = 'back to top';

      var linkOff = new ImageArray('/images/backtotop_norm.gif');
      var linkOn = new ImageArray('/images/backtotop_over.gif');

      function ImageArray() {
        this.length = ImageArray.arguments.length
        for (var i = 0; i < this.length; i++) {
          this[i] = new Image()
          this[i].src = ImageArray.arguments[i]}
      }

      function onOut(n) {
        eval("document.images.link" + (n + 1) + ".src = linkOff[" + n + "].src");
        window.status = '';
      }

      function onOver(n) {
        eval("document.images.link" + (n + 1) + ".src = linkOn[" + n + "].src");
        window.status = caption[n];
      }
  //-->