Try this
PHP Code:
<!-- header quick search form -->
<div class="vbmenu_popup" id="navbar_search_menu" style="display:none">
<table cellpadding="4" cellspacing="1" border="0">
<tr>
<form action="search.php?do=process" method="post"><td class="thead">$vbphrase[search_forums]</td>
</tr>
<tr>
<td class="vbmenu_option" title="nohilite">
<input type="hidden" name="do" value="process" />
<input type="hidden" name="quicksearch" value="1" />
<input type="hidden" name="childforums" value="1" />
<input type="hidden" name="exactname" value="1" />
<input type="hidden" name="s" value="$session[sessionhash]" />
<div><input type="text" class="bginput" name="query" size="25" tabindex="1001" /><input type="submit" class="button" value="$vbphrase[go]" tabindex="1004" /></div>
</td>
</tr>
<tr>
<td class="vbmenu_option" title="nohilite">
<label for="rb_nb_sp0"><input type="radio" name="showposts" value="0" id="rb_nb_sp0" tabindex="1002" checked="checked" />$vbphrase[show_threads]</label>
<label for="rb_nb_sp1"><input type="radio" name="showposts" value="1" id="rb_nb_sp1" tabindex="1003" />$vbphrase[show_posts]</label>
</td>
</tr>
<tr>
<td class="vbmenu_option"><a href="search.php$session[sessionurl_q]" accesskey="4" rel="nofollow">$vbphrase[advanced_search]</a></td></form>
</tr>
<tr>
<form action="http://www.google.com/custom" type="hidden" method=GET name="search"><td class="thead">Search Google</td>
</tr>
<tr>
<td class="vbmenu_option" title="nohilite">
<input type="hidden" name="client" value="pub-1234567890123456">
<input type="hidden" name="forid" value="1">
<input type="hidden" name="ie" value="ISO-8859-1">
<input type="hidden" name="oe" value="ISO-8859-1">
<input name="cof" type="hidden" value="GALT: ">
<input type="hidden" name="hl" value="en">
<input type="text" class="bginput" name="q" size="25" maxlength="255" />$gobutton<br />
</td></form>
</tr>
</table>
</div>
<!-- / header quick search form -->