             else
                 availableHeight -= rowHeight + rowGap;            
         }
-                
+           
         // Free renderers that aren't in use
         
         for each (var oldRenderer:IVisualElement in visibleItemRenderers)

    {
        // TBD(hmuller):DTRT when the target changes
    }    
    
    //--------------------------------------------------------------------------
    //
    //  DataGrid Access

        {
            newVisibleRowIndices.push(rowIndex);
            
            // The offset for the columns in this row.
            const irOffsetForRow:int = newVisibleItemRenderers.length;
            
            // Returns the default height, if the row/cell height not previously
            // set.
            var rowHeight:Number = gridDimensions.getRowHeight(rowIndex);
            for each (colIndex in newVisibleColumnIndices)
            {
