Adding a login button

[Bubble #5]

Hi everyone. We are trying to do something that 'should' be very easy, but for some reason it's giving us a lot of grief All we want to do is to replace the HTML style login button with a gif image style login button. Could someone please check our code that we pieced together and tell us where we're going wrong? I'm sure it's something simple, but what? The part that's in bold is the part that we think is wrong. Thanks.

<td><input type="password" class="button" name="vb_login_password" size="10" accesskey="p" tabindex="2" /></td>
<td> <a href="login.php?$session[sessionurl]do=login&amp;u=$bbuserinfo[userid]" onclick="return log_in()"> <img src="$stylevar[imgdir_buttons]/buttons/login.gif" alt="" /></a></td>
</tr>
</table>
<input type="hidden" name="s" value="$session[sessionhash]" />
<input type="hidden" name="do" value="login" />
<input type="hidden" name="forceredirect" value="1" />
<input type="hidden" name="vb_login_md5password" />
<input type="hidden" name="vb_login_md5password_utf" />
</form>

[paulyy]

<input name="name" type="image" value="value" src="http://www.domain.com/images/image.gif" alt="Login" />