$cats = explode("
“,wp_list_categories(‘title_li=&echo=0&depth=1&style=none’));
$cat_n = count($cats) – 1;
for ($i=0;$i<$cat_n;$i++):
if ($i<$cat_n/2):
$cat_left = $cat_left.'

‘;
elseif ($i>=$cat_n/2):
$cat_right = $cat_right.’

‘;
endif;
endfor;
?>