Effect.ScrollUp = function(element) {
     element = $(element);
     new Effect.BlindDown(element, arguments[1] || {});
 }

 Effect.ScrollDown = function(element) {
     element = $(element);
     new Effect.BlindUp(element, arguments[1] || {});
 }

 Effect.ScrollOpen = function(element) {
     element = $(element);
     if(element.style.display == 'none') { 
          new Effect.ScrollUp(element, arguments[1] || {}); 
     }else { 
          new Effect.ScrollDown(element, arguments[1] || {}); 
     }
 }