Sorting add options not working

[sigmachiuta]

I am trying to sort my addOptions but i dont have success doing this what i have is a a glide ajax call here is my script include sort is an integer.   This should be passing the sort as the last parameter

       while(gr.next()){
           var a = gr.u_operatingsystem.split(',');
           var result =   this.newItem('os1');
           for(var i = 0 ; i < a.length; i++){
               var na = new GlideRecord('u_operatingsystems');
               na.addQuery('sys_id',a[i]);
               na.addQuery('u_active', 'true');
               na.query(); 
               while(na.next()){
           var b = this.newItem("os");
           b.setAttribute("os", na.u_osdisplayname);
     var c = this.newItem("sort");
     c.setAttribute("sort", na.u_sort);
               }

and here is a snip from my client script the options are showing correct the sort order is just not correct.

   function OsProcessor(response) {
       var sec = response.responseXML.getElementsByTagName("os");
   var srt = response.responseXML.getElementsByTagName("sort"); 
       for ( var i = 0 ; i < sec.length; i++){
           var n1 = sec[i].getAttribute("os");
           var sort= sec[i].getAttribute("sort");
           g_form.addOption('os', n1, n1, sort);
       }

[sigmachiuta]

Sorting my query didnt work.   Thats probably bc i am passing the sys id in from another query that does not have a sort (notice the split on line 2).   Before my for loop in my response i gathered all my values in an array and then sorted them.   After the sort i passed the values into the addOption

Community Code Snippets - Three Methods to Sort an Object Array