code: function(row) {
      var nRecordIndex;
  
      // By Record
      if(row instanceof YAHOO.widget.Record) {
          nRecordIndex = this._oRecordSet.getRecordIndex(row);
          if(nRecordIndex === null) {
              // Not a valid Record
              return null;
          }
      }
      // Calculate page row index from Record index
      else if(lang.isNumber(row)) {
          nRecordIndex = row;
      }
      if(lang.isNumber(nRecordIndex)) {
          // Validate the number
          if((nRecordIndex > -1) && (nRecordIndex < this._oRecordSet.getLength())) {
              // DataTable is paginated
              var oPaginator = this.get('paginator');
              if(oPaginator) {
                  // Check the record index is within the indices of the
                  // current page
                  var rng = oPaginator.getPageRecords();
                  if (rng && nRecordIndex >= rng[0] && nRecordIndex <= rng[1]) {
                      // This Record is on current page
                      return nRecordIndex - rng[0];
                  }
                  // This Record is not on current page
                  else {
                      return null;
                  }
              }
              // Not paginated, just return the Record index
              else {
                  return nRecordIndex;
              }
          }
          // RecordSet index is out of range
          else {
              return null;
          }
      }
      // By element reference or ID string
      else {
          // Validate TR element
          var elRow = this.getTrEl(row);
          if(elRow && (elRow.ownerDocument == document) &&
                  (elRow.parentNode == this._elTbody)) {
              return elRow.sectionRowIndex;
          }
      }
  
      return null;
  }
docs: Returns the page row index of given row. Returns null if the row is not on the
  current DataTable page.
  
  @method getTrIndex
  @param row {HTMLElement | String | YAHOO.widget.Record | Number} DOM or ID
  string reference to an element within the DataTable page, a Record instance,
  or a Record's RecordSet index.
  @return {Number} Page row index, or null if row does not exist or is not on current page.