function update($new_instance, $old_instance)
{
$instance = $old_instance;
$instance['facebook'] = strip_tags($new_instance['facebook']);
$instance['youtube'] = strip_tags($new_instance['youtube']);
$instance['vimeo'] = strip_tags($new_instance['vimeo']);
$instance['dribbble'] = strip_tags($new_instance['dribbble']);
$instance['github'] = strip_tags($new_instance['github']);
$instance['prefix'] = strip_tags($new_instance['prefix']);
$instance['title'] = strip_tags($new_instance['title']);
$Social = new Social();
$Social->reset();
return $instance;
}
