window.addEvent('domready', function(){
  box = $$(".csc-textpic-image");
  toggles = $$("dt");
  togs = {};
  box.each(function(el, idx) {
  togs[idx] = new Fx.Style(toggles[idx], 'opacity',{duration:150, wait:false}).set(0);
  box[idx].addClass('b'+idx);    
    el.addEvent('mouseenter', function(e) {
      var e = new Event(e).stop();    
      togs[idx].start(0,1);
    });
    el.addEvent('mouseleave', function(e) {
      var e = new Event(e).stop();    
      togs[idx].start(1,0);
    });
  });

});