http://xml.apache.org/commons/components/external/: xml-commons provides an Apache-hosted set of DOM, SAX, and JAXP interfaces for use in other xml-based projects. Our hope is that we can standardize on both a common version and packaging scheme for these critical XML standards interfaces to make the lives of both our developers and users easier. The External Components portion of xml-commons contains interfaces that are defined by external standards organizations. For DOM, that's the W3C; for SAX it's David Megginson and sax.sourceforge.net; for JAXP it's Sun. 
/*
 * Copyright (c) 1998 World Wide Web Consortium, (Massachusetts Institute of
 * Technology, Institut National de Recherche en Informatique et en
 * Automatique, Keio University).
 * All Rights Reserved. http://www.w3.org/Consortium/Legal/
 */

package org.w3c.dom.html;

import org.w3c.dom.*;


Regroups the COL and COLGROUP elements. See the 
COL element definition in HTML 4.0.

/**
 * Regroups the <code>COL</code> and <code>COLGROUP</code> elements. See the 
 * COL element definition in HTML 4.0.
 */
public interface HTMLTableColElement extends HTMLElement {
  
Horizontal alignment of cell data in column. See the align attribute 
definition in HTML 4.0.

/**
   * Horizontal alignment of cell data in column. See the align attribute 
   * definition in HTML 4.0.
   */
  public String             getAlign();
  public void               setAlign(String align);
  
Alignment character for cells in a column. See the char attribute 
definition in HTML 4.0.

/**
   * Alignment character for cells in a column. See the char attribute 
   * definition in HTML 4.0.
   */
  public String             getCh();
  public void               setCh(String ch);
  
Offset of alignment character. See the charoff attribute definition in 
HTML 4.0.

/**
   * Offset of alignment character. See the charoff attribute definition in 
   * HTML 4.0.
   */
  public String             getChOff();
  public void               setChOff(String chOff);
  
Indicates the number of columns in a group or affected by a grouping. See 
the span attribute definition in HTML 4.0.

/**
   * Indicates the number of columns in a group or affected by a grouping. See 
   * the span attribute definition in HTML 4.0.
   */
  public int                getSpan();
  public void               setSpan(int span);
  
Vertical alignment of cell data in column. See the valign attribute 
definition in HTML 4.0.

/**
   * Vertical alignment of cell data in column. See the valign attribute 
   * definition in HTML 4.0.
   */
  public String             getVAlign();
  public void               setVAlign(String vAlign);
  
Default column width. See the width attribute definition in HTML 4.0.

/**
   * Default column width. See the width attribute definition in HTML 4.0.
   */
  public String             getWidth();
  public void               setWidth(String width);
}