if (typeof slidebox != 'function') {
  function slidebox(id,si,so){
    var dix = $(id);
    var boxslides = dix.getElements('.slidebox');
    boxslides.each(function(b, i){
      b.setStyle('overflow', 'hidden');
      var slide = b.getElement('div[class=slidepanel]');
      slide.setStyles({
        'position': 'relative',
        'top': so
      });
      var sfx = new Fx.Styles(slide, {
        duration: 200,
        fps:80,
        transtion: Fx.Transitions.Pow,
        wait: false
      })
      b.addEvent('mouseenter', function(){
        sfx.start({
          'top': si
        });
      });
      b.addEvent('mouseleave', function(){
        sfx.start({
          'top': so
        });
      });
    });
  }
}