code: private WRow createRow(final int hgap, final int[] colWidths) {
  		WRow row = new WRow(hgap);
  
  		for (int i = 0; i < colWidths.length; i++) {
  			WColumn col = new WColumn(colWidths[i]);
  			WPanel box = new WPanel(WPanel.Type.BOX);
  			box.add(new WText(colWidths[i] + "%"));
  			col.add(box);
  			row.add(col);
  		}
  
  		return row;
  	}
docs: Creates a row containing columns with the given widths.
  
  @param hgap the horizontal gap between columns, in pixels.
  @param colWidths the percentage widths for each column.
  @return a WRow containing columns with the given widths.