JQM 1.3.1: Why loading works only in some browsers?

JQM 1.3.1: Why loading works only in some browsers?

Hi,
 
With JQM 1.3.1, l use loading('show') in this way:
 
      $(document).bind("mobileinit", function(){
        $(document).ajaxSend(function() {
          $.mobile.loading('show');
        });
        $(document).ajaxComplete(function() {
          $.mobile.loading('hide');
        });
        $(document).ajaxStart(function() {
          $.mobile.loading('show');
        });
        $(document).ajaxStop(function() {
          $.mobile.loading('hide');
        });
      });













It works only in some browser (i.e. Firefox or Blackberry native browser) but not in others (i.e. Internete Explorer or Chrome). Is there a way to make it to work in any browser?.
 
Thank you!
 
Adriano.