​x
 
<html>
<head>
<script type="text/javascript">
function showTabIndex()
  {
  var b1=document.getElementById('b1').tabIndex;
  var b2=document.getElementById('b2').tabIndex;
  var b3=document.getElementById('b3').tabIndex;
  document.write("Tab index of Button 1: " + b1);
  document.write("<br />");
  document.write("Tab index of Button 2: " + b2);
  document.write("<br />");
  document.write("Tab index of Button 3: " + b3);
  }
</script>
</head>
<body>
​
<form>
<input type="button" id="b1" tabIndex="1" value="Button 1" />
<br />
<input type="button" id="b2" tabIndex="2" value="Button 2" />
<br />
<input type="button" id="b3" tabIndex="3" value="Button 3" />
<br />
<input type="button" onclick="showTabIndex()"
value="Show tabIndex" />
</form>
​
</body>
</html>
​