Patch for WordPress CSS Drop-down Menu

<?php

function wp_list_pages_filter($output) {
//$output = preg_replace('#class="noiframe">([\w\s]+)</a>[\s]*<ul class=\'children\'>#', 'class="noiframe drop">$1<ul class=\'children\'>', $output);
$output = preg_replace("#</a>\s+<ul class='children'>#", "<!--[if gte IE 7]><!--></a><!--<![endif]-->\n<!--[if lte IE 6]><table><tr><td><![endif]-->\n<ul class='children'>", $output);
$output = str_replace("</ul>", "</ul>\n<!--[if lte IE 6]></td></tr></table></a><![endif]-->", $output);
return $output;
}
add_filter('wp_list_pages', 'wp_list_pages_filter');


//  see http://stackoverflow.com/questions/7933681/jquery-addclass-to-a-child-element
function jquery_add_drops() {
   ?>
    <script language="JavaScript" type="text/javascript">
         jQuery(document).ready(function(){
         jQuery("li:has(ul.children) > a").addClass('drop');
});
    </script>
    <?php
}

if (!(is_admin())) {
wp_enqueue_script('jquery');
add_action('wp_head', 'jquery_add_drops');
}