获取节点的首个子节点

  1. <html>
  2. <head>
  3. <script type="text/javascript" src="/example/xdom/loadxmldoc.js">
  4. </script>
  5. <script type="text/javascript">
  6. //check if the first node is an element node
  7. function get_firstChild(n)
  8. {
  9. y=n.firstChild;
  10. while (y.nodeType!=1)
  11.   {
  12.   y=y.nextSibling;
  13.   }
  14. return y;
  15. }
  16. </script>
  17. </head>
  18.  
  19. <body>
  20. <script type="text/javascript">
  21. xmlDoc=loadXMLDoc("/example/xdom/books.xml");
  22.  
  23. x=get_firstChild(xmlDoc.getElementsByTagName("book")[0]);
  24. document.write(x.nodeName);
  25. </script>
  26. </body>
  27. </html>