<script src='prototype.js' type='text/javascript' language='JavaScript'></script>
      <script src='scriptaculous.js' type='text/javascript' language='JavaScript'></script>
      <script type='text/javascript'>
         //<![CDATA[
            function mytoggle(link, id) {
               Effect.toggle(id, 'appear', {duration:1.0});
               if(link.innerHTML == '+')
               {
                  link.innerHTML = '-';
               } else {
                  link.innerHTML = '+';
               }
            }
         //]]>
      </script>
        <span id="h2_source"><a href="javascript:void(0)" onclick="mytoggle(this, 'code_div');" style="text-decoration:none">-</a></span><br />
        
        <div id="code_div">
            <div style="height:330px;border:1px solid #ff0000;">
                INHALT
            </div>
        </div>

        test