fade out search hit colorization

lib/scripts/behaviour.js

@@ -79,13 +79,11 @@ var dw_behaviour = {
 
     /**
      * Remove all search highlighting when clicking on a highlighted term
-     *
-     * @FIXME would be nice to have it fade out
      */
     removeHighlightOnClick: function(){
         jQuery('span.search_hit').click(
             function(e){
-                jQuery(e.target).removeClass('search_hit');
+                jQuery(e.target).removeClass('search_hit', 1000);
             }
         );
     },