Allowing HTML in Widget Titles

Hi,

I have a client that wants to have some of their widget titles be links. Following the directions on this article, I made the following changes:

In the functions.php file of my theme, I added the following:

if (include('custom_widgets.php')){
     add_action("widgets_init", "load_custom_widgets");
}
function load_custom_widgets() {
    unregister_widget("WP_Widget_Text");
    register_widget("WP_Widget_Text_Custom");
}

I created the custom_widgets.php file, and made some changes.

In the function update() in the WP_Widget_Text class I changed:

$instance['title'] = strip_tags($new_instance['title']);
		if ( current_user_can('unfiltered_html') )
			$instance['text'] =  $new_instance['text'];
		else
			$instance['text'] = stripslashes( wp_filter_post_kses( addslashes( $new_instance['text'] ) ) );

to

if ( current_user_can('unfiltered_html') )
		{
			$instance['text'] =  $new_instance['text'];
			$instance['title'] = html_entity_decode($new_instance['title']);
		}
		else
		{
			$instance['title'] = strip_tags($new_instance['title']);
			$instance['text'] = stripslashes( wp_filter_post_kses( addslashes( $new_instance['text'] ) ) ); // wp_filter_post_kses() expects slashed
		}

I also removed the strip_tags call in the form() function just below.

The sidebar is now outputting raw html, i.e. the code itself rather rendering as a link. How do I get around this? Suggestion of using html_entitiy_decode() in the comments didn’t work, although i may be applying it incorrectly.

Thanks.