function menu_mouseover(pos) 
  {     
    new Effect.Move ('slider',{ x: pos, y: 3, mode: 'absolute', duration: 0.25  });      
  }
  
function menu_mouseover2(pos) 
  {     
    new Effect.Move ('slider2',{ x: pos, y: 0, mode: 'absolute', duration: 0.25, queue: {position:'end', scope: 'slider', limit: 5}});      
  }