Werbung nach erstem Absatz mit umlaufendem Text

/**
 * add shortcode "werbung" (advertisement) with 3 custom fields
 *
 * embed like this:
 * if ( function_exists('add_shortcode') )
 * add_shortcode('fb_werbung', 'fb_example_link');
 *
 * use the quick-tag directly in your content:
 * [fb_werbung]
 */
if ( !function_exists('fb_example_link') ) {
	function fb_example_link() {
		global $wp_query;
		
		$postID     = $wp_query->post->ID;
		$mylink     = get_post_custom_values('link', $postID);
		$mypic      = get_post_custom_values('bild', $postID);
		$mylinktext = get_post_custom_values('linktext', $postID);
		
		return '<a href="' . $mylink[0] . '"><img src="' . $mypic[0] . '" title="' . $mylinktext[0] . '"></a>';
	}
if ( function_exists('add_shortcode') )
	add_shortcode('fb_werbung', 'fb_example_link');
}