function excerpt($limit) {

$excerpt = explode(' ', get_the_excerpt(), $limit);

if (count($excerpt)>=$limit) {

array_pop($excerpt);

$excerpt = implode(" ",$excerpt).'...';

} else {

$excerpt = implode(" ",$excerpt);

}

$excerpt = preg_replace('`[[^]]*]`','',$excerpt);

return $excerpt;

}