PHPList Newsletter Script

Hi,

I have some problems with phplist. Someone can help me with it? That i want to do is hide to input text emailconfirm <input type=text name=emailconfirm value="" size="40"> and when i press Submit so it will copy the text in email <input type=text name=email value="" size="40"> to emailconfirm and then submit.

Code:
<table border=0>
<tr><td><div class="required">Email</div></td>
<td class="attributeinput"><input type=text name=email value="" size="40">
<script language="Javascript" type="text/javascript">addFieldToCheck("email","Email");</script></td></tr>
<tr><td><div class="required">Confirm email</div></td>
<td class="attributeinput"><input type=text name=emailconfirm value="" size="40">
<script language="Javascript" type="text/javascript">addFieldToCheck("emailconfirm","Confirm email");</script></td></tr><tr><td colspan=2>
<span class="attributeinput"><input type=checkbox name="htmlemail" value="1" /></span>
<span class="attributename">I prefer to receive emails in HTML format</span></td></tr>
<tr><td><div class="required">Name</div></td><td class="attributeinput">
<input type=text name="attribute1" class="attributeinput" size="40" value=""><script language="Javascript" type="text/javascript">addFieldToCheck("attribute1","Name");</script></td></tr>
</table><input type="hidden" name="list[1]" value="signup"><input type="hidden" name="listname[1]" value="test"/><p><input type=submit name="subscribe" value="Subscribe" onClick="return checkform();">



Thanks
TigerSoft