<script type="text/javascript">      
      function regClick() {$('#reg_block').show();$('#reg_rules').hide();}      
      </script>      
      <div id="reg_rules">      
      <div style="padding:20px 30px;background:#efefef">      
      Jūsu noteikumi...
      </div>      
      <div style="padding:20px 30px;background:#dae5ff"><input type="checkbox" id="rules" onclick="regClick()"><label for="rules">Es <b>piekrītu</b> portāla lietošanas noteikumiem.</label></div>      
      </div>      
      <div id="reg_block" style="display:none">$BODY$</div>

<?if($ERROR$)?><script type="text/javascript">regClick()</script><?endif?>