<!--

        function showPreview(id) {                             /* Shows Content 2.0 previews */
          // find all the preview divs
          var divs = document.getElementsByTagName('div');
          var imagePreviews = [];
          for (var i=0, ilen=divs.length; i<ilen; i++) {
            var div = divs[i];
            if (/(^|\s+)imagePreview(\s+|$)/.test(div.className)) {
              imagePreviews.push(div);
            }
          }
          // hide first and then show to avoid having two previews visible
          // at the same time.
          //
          // hide other previews
          for (var i=0, ilen=imagePreviews.length; i<ilen; i++) {
            var imagePreview = imagePreviews[i];
            if (imagePreview.id != 'preview_'+id) {
              imagePreview.style.display = 'none';
            }
          }
          // show the current preview
          for (var i=0, ilen=imagePreviews.length; i<ilen; i++) {
            var imagePreview = imagePreviews[i];
            if (imagePreview.id == 'preview_'+id) {
              imagePreview.style.display = '';
            }
          }
        }
        function stopPropagation(e) {
          if (e.stopPropagation) {
            e.stopPropagation();
          }
          else {
            e.cancelBubble = true;
          }
        }

// -->