Risolto!
codice:$(".open").live('click', function(){ var slide = "#d"+this.id.replace('a',''); $(slide).animate({"height": "show"}, { duration: 500 }); }); $(".close").live('click', function(){ var slide = "#d"+this.id.replace('c',''); $(slide).animate({"height": "hide"}, { duration: 500 }); });