code: function loadAndParseFile(filename, settings, nextFile) {
  
          if (settings.debug) {
              debug('loadAndParseFile(\'' + filename +'\')');
              debug('totalFiles: ' + settings.totalFiles);
              debug('filesLoaded: ' + settings.filesLoaded);
          }
  
    	    if (filename !== null && typeof filename !== 'undefined') {
              $.ajax({
                  url: filename,
                  async: settings.async,
                  cache: settings.cache,
                  dataType: 'text',
                  success: function (data, status) {
  
                      if (settings.debug) {
                          debug('Succeeded in downloading ' + filename + '.');
                          debug(data);
                      }
  
                      parseData(data, settings);
                      nextFile();
                  },
                  error: function (jqXHR, textStatus, errorThrown) {
  
                      if (settings.debug) {
                          debug('Failed to download or parse ' + filename + '. errorThrown: ' + errorThrown);
                      }
                      if (jqXHR.status === 404) {
                          settings.totalFiles -= 1;
                      }
                      nextFile();
                  }
              });
          }
      }
docs: Load and parse .properties files