insertColGroups2.html 701 B

12345678910111213141516171819202122232425262728293031323334
  1. <HEAD>
  2. <SCRIPT src=tableDom.js>
  3. </SCRIPT>
  4. <SCRIPT>
  5. function doIt() {
  6. var table = document.getElementsByTagName("TABLE")[0];
  7. var refCg = document.getElementsByTagName("COLGROUP")[1];
  8. var cg = document.createElement("COLGROUP", null);
  9. var col = document.createElement("COL", null);
  10. col.width = 100;
  11. cg.appendChild(col);
  12. col = document.createElement("COL", null);
  13. col.width = 150;
  14. cg.appendChild(col);
  15. table.insertBefore(cg, refCg);
  16. }
  17. </SCRIPT>
  18. </HEAD>
  19. <BODY onload="doIt()">
  20. <table bgcolor=orange border>
  21. <colgroup>
  22. <col width=50>
  23. </colgroup>
  24. <colgroup>
  25. <col width=200>
  26. </colgroup>
  27. <tr>
  28. <td>50</td><td>100</td><td>150</td><td>200</td>
  29. </tr>
  30. </table>
  31. </BODY></HTML>