Zend FR

Hello everyone,

am wondering if someone  can help me out. Am using zend form decorator for a form
it is working perfectly but i have a problem on the rendering of the html

here is the html rendering

    <form name="signup" action="" method="post">
    <ul>
        <li>
            <label for="name">Name</label>
            <input type="text" name="name" id="name" size="30" />
        </li>
        <li>
            <label for="email">Email</label>
            <input type="text" name="email" id="email" size="30" />
        </li>
        <li>
            <label for="psw">Psw</label>
            <input type="text" name="psw" id="psw" size="30" />
        </li>
        <li>
            <label for="free">Free Subscription</label>
            <input type="radio" name="subscription" id="free" checked="checked"/>        </li>
        <li>
            <label for="professional">Professional</label>
            <input type="radio" name="subscription" id="professional"/>
        </li>
        <li>
            <label for="newsletter">Newsletter?</label>
            <input type="checkbox" name="newsletter" id="newsletter"/>
        </li>
        <li><label for="submit">&nbsp;</label>
            <button type="submit" id="submit">Send</button>
        </li>
          <li class='cancel'>
            <label for="submit">&nbsp;</label>
            <button type="submit" id="cancel">Send</button>
        </li>
    <ul>
    </form>



i want to group the two buttons with only one li tag so i can render properly on different browsers like tht
<li class='buttons'>
            <button type="submit" id="submit">Send</button>
            <button type="submit" id="cancel">Send</button>
  </li>


i have tried to use displaygroup but it is not working. Please can someone help out... am having on this for 3days no clue.Thanks you for quick and kind reply