code: public String buttonBarLine(int leftPixel, int rightPixel, String className) {
  
          StringBuffer result = new StringBuffer(512);
          if (leftPixel > 0) {
              result.append(buttonBarLineSpacer(leftPixel));
          }
          result.append("<td><span class=\"");
          result.append(className);
          result.append("\"></span></td>\n");
          if (rightPixel > 0) {
              result.append(buttonBarLineSpacer(rightPixel));
          }
          return result.toString();
      }
docs: Generates a variable button bar separator line.<p>
  
  @param leftPixel the amount of pixel left to the line
  @param rightPixel the amount of pixel right to the line
  @param className the css class name for the formatting
  
  @return  a variable button bar separator line