code: @Override
  	public void printContentHorizontalDivider(ChainWriter out, WebSiteRequest req, HttpServletResponse resp, int[] colspansAndDirections, boolean endsInternal) {
  		out.print("  <tr>\n");
  		for(int c=0;c<colspansAndDirections.length;c+=2) {
  			int direction=c==0?-1:colspansAndDirections[c-1];
  			if(direction!=-1) {
  				switch(direction) {
  					case UP:
  						out.print("    <td>&#160;</td>\n");
  						break;
  					case DOWN:
  						out.print("    <td>&#160;</td>\n");
  						break;
  					case UP_AND_DOWN:
  						out.print("    <td>&#160;</td>\n");
  						break;
  					default: throw new IllegalArgumentException("Unknown direction: "+direction);
  				}
  			}
  
  			int colspan=colspansAndDirections[c];
  			out.print("    <td");
  			if(colspan!=1) out.print(" colspan='").print(colspan).print('\'');
  			out.print("><hr /></td>\n");
  		}
  		out.print("  </tr>\n");
  	}
docs: Prints a horizontal divider of the provided colspan.