$(document).ready(function() {
   
   
   $.ajax({
   url: "remote/banner_home.php", 
   
   success: function(json_php){
         
         eval(json_php); //oggetto = ...
         $('#placeholder').crossSlide({
          speed: 25,
          fade: 1
        }, oggetto );
         
         
      }
    });   
          
 });