<form id="myFormId" name="myForm" onsubmit="return true;" action="/testAction.action" method="post">
 <table class="wwFormTable"> 
<tr>
    <td class="tdLabel"><label for="myId" class="label">MyLabel:
      <img id="_tt1507188919"
      	src='/struts/tooltip/myTooltip.gif'
      	alt="myTooltip" 
      	title="myTooltip" />

      <span dojoType="tooltip" connectId="_tt1507188919" delay="500"
          caption="myTooltip"></span>
	  </label></td>
    <td><input type="text" name="" id="myId"/></td>
</tr>
</table>
</form>

<!-- javascript that is needed for tooltips -->
<script type="text/javascript">dojo.require("dojo.widget.Tooltip");dojo.require("dojo.fx.html");</script>