U.Helper

<script language="javascript">  
  var texter=Array();  
  texter[1]='<iframe src="http://nimpo-world.com/dir/2-1-0-1" style="border: medium none ;" width="490" height="100%" hspace="0" vspace="0" allowtransparency="true" scrolling="no" frameborder="0"></iframe>';  
  texter[2]='<iframe src="http://nimpo-world.com/dir/2-1-0-2" style="border: medium none ;" width="490" height="239" hspace="0" vspace="0" allowtransparency="true" scrolling="no" frameborder="0"></iframe>';
  function spisok(id){  
  return texter[id];  
  }  
</script>

<a href="javascript: void(0);" onClick="document.getElementById('spisok').innerHTML = spisok(1);return false;">1</a>  
<a href="javascript: void(0);" onClick="document.getElementById('spisok').innerHTML = spisok(2);return false;">2</a>  
<a href="javascript: void(0);" onClick="document.getElementById('spisok').innerHTML = spisok(3);return false;">3</a>

  <!--  

  d = new dTree('d');  

  d.add(0,-1,'Меню');  
  d.add(1,0,'Пункт 1','Ссылка 1');  
  d.add(2,1,'Пункт 2','Ссылка 2');  
  d.add(3,2,'Пункт 3','Ссылка 3')  

  document.write(d);  

  //-->  
  

  // Creates the node icon, url and text  

  dTree.prototype.node = function(node, nodeId) {  

        var str = '<div class="dTreeNode">' + this.indent(node, nodeId);  

        if (this.config.useIcons) {  

         if (!node.icon) node.icon = (this.root.id == node.pid) ? this.icon.root : ((node._hc) ? this.icon.folder : this.icon.node);  

         if (!node.iconOpen) node.iconOpen = (node._hc) ? this.icon.folderOpen : this.icon.node;  

         if (this.root.id == node.pid) {  

          node.icon = this.icon.root;  

          node.iconOpen = this.icon.root;  

         }  

         str += '<img id="i' + this.obj + nodeId + '" src="' + ((node._io) ? node.iconOpen : node.icon) + '" alt="" />';  

        }  

        if (node.url) {  

         str += '<a id="s' + this.obj + nodeId + '" class="' + ((this.config.useSelection) ? ((node._is ? 'nodeSel' : 'node')) : 'node') + '" href="' + node.url + '"';  

         if (node.title) str += ' title="' + node.title + '"';  

         if (node.target) str += ' target="' + node.target + '"';  

         if (this.config.useStatusText) str += ' onmouseover="window.status=\'' + node.name + '\';return true;" onmouseout="window.status=\'\';return true;" ';  

         if (this.config.useSelection && ((node._hc && this.config.folderLinks) || !node._hc))  

          str += ' onclick="javascript: ' + this.obj + '.s(' + nodeId + ');"';  

         str += '>';  

        }  

        else if ((!this.config.folderLinks || !node.url) && node._hc && node.pid != this.root.id)  

         str += '<a href="javascript: ' + this.obj + '.o(' + nodeId + ');" class="node">';  

        str += node.name;  

        if (node.url || ((!this.config.folderLinks || !node.url) && node._hc)) str += '</a>';  

        str += '</div>';  

        if (node._hc) {  

         str += '<div id="d' + this.obj + nodeId + '" class="clip" style="display:' + ((this.root.id == node.pid || node._io) ? 'block' : 'none') + ';">';  

         str += this.addNode(node);  

         str += '</div>';  

        }  

        this.aIndent.pop();  

        return str;  

  };