function ajaxUpdateFName() {
      if(alreadyUpdating) {
          return;
      }
      alreadyUpdating = 1;
      $( "#upbutton" ).button( "option", "disabled", true );
      var origname_c = document.getElementById("upfile");
      var newname_c = document.getElementById("upfname");
      var description_c = document.getElementById("updescription");
      var params = "fname=" + origname_c.value;
      srefresh.open("POST", ttvars.checkfname, true);
      
      //Send the proper header information along with the request
      srefresh.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
      
      srefresh.onreadystatechange=function() {
        if(srefresh.readyState == 4) {
          var serverresponse = srefresh.responseText;
          var parsed = JSON.parse(serverresponse);
          newname_c.value = parsed.fname;
          $("#ajaxwait").hide();
          $("#upfnamestatus").html(parsed.statustext);
          if(parsed.description != '' && description_c.value == '') {
            description_c.value = parsed.description;
          }
          if(parsed.status == 'OK') {
            $("#upfnamestatus").css("color", "green");
            $('#upfname').removeAttr("disabled");
            $("#upbutton" ).button( "option", "disabled", false );
          } else if(parsed.status == "WARNING") {
            $("#upfnamestatus").css("color", "orange");
            $('#upfname').removeAttr("disabled");
            $("#upbutton" ).button( "option", "disabled", false );
          } else {
            $("#upfnamestatus").css("color", "red");
          }
          $("#upfnamestatus").show();
          alreadyUpdating = 1;
        }
      }
      srefresh.send(params);
    }