$().ready(function(){
  //$(".images a[rel^='prettyPhoto']").prettyPhoto({theme:'facebook'});
  $("a[rel^='prettyPhoto']").prettyPhoto({allowresize:false,theme:'facebook',changepicturecallback:function(){
    $("a.pp_arrow_next, a.pp_arrow_previous").click(function(e){
      e.preventDefault();
    });
  }});
});