Problem submitting PHP form using AJAX

programming web dev
1

I found this tutorial on using lightbox but I am having a problem with it. My php form is getting loaded correctly but when I hit submit it open a new browser window isntead of loading it into the DIV.

Here is the link to the lightbox files

http://particletree.com/features/lightbox-gone-wild/

Here is my form

<form id="form" action="submitrequest.php" >
    <div id="head"> Request a testimonial</div>
    <div>
        <span class="divs">Subject</span>
    </div>
    <div>
        <input name=txtsubject type=text value="Hello Tom" size="50">
    </div>
    <div>
        <span class="divs">Full Name</span>
    </div>
    <div>
        <table width="200" border="0" align="left" cellpadding="0" cellspacing="0">
          <tr>
            <td><label>
              <input name="Gender" type="radio" value="mr" id="Gender_0" checked="checked" />
              Mr</label></td>
            <td><label>
              <input type="radio" name="Gender" value="mrs" id="Gender_1" />
              Mrs</label></td>
            <td><label>
              <input type="radio" name="Gender" value="miss" id="Gender_2" />
              Miss</label></td>
          </tr>
        </table>
    </div>
    <div>
        <input name=fullname type=text value="Tom Alvarez" size="45">
    </div>
    <div>
        <span class="divs">Email</span>
    </div>
    <div>
        <input name=email type=text value="tomealvarez@yahoo.com" size="50">
    </div>
    <div>    
        <span class="divs">Message</span>
    </div>
    <div>
        <textarea name=message colms="50" rows="10">This is a test</textarea>
    </div>
    <div align="right">
    <button type="button" value="submit" name="submit" onclick="insert" class="lbAction">Submit</button>
        <a href="#" class="lbAction" id="form" rel="insert">Submit</a>
        <a href="#" class="lbAction" rel="deactivate"> Cancel </a>
    </div>
</form>

The php is submitting the form but it only does it if I do it outside of the AJAX window. Can anyone help with this? Thanks