51help TIY
码：
<html> <head> <script type="text/javascript"> function changeTabIndex() { document.getElementById('check3').tabIndex="1" document.getElementById('check1').tabIndex="3" } </script> </head> <body> <p>Try navigating the links on this page by using your "tab" button on you keyboard</p> <form><input type="checkbox" id="check1" tabIndex="1" /><br /> <input type="checkbox" id="check2" tabIndex="2" /><br /> <input type="checkbox" id="check3" tabIndex="3" /><br /> <input type="button" onclick="changeTabIndex()" value="Change tabIndex" /> </form> </body> </html>
查看结果: