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<html>
<head>
<script type="text/javascript">
function showTabIndex()
  {
  var r1=document.getElementById('radio1').tabIndex;
  var r2=document.getElementById('radio2').tabIndex;
  var r3=document.getElementById('radio3').tabIndex;
  document.write("Tab index of radio button 1: " + r1);
  document.write("<br />");
  document.write("Tab index of radio button 2: " + r2);
  document.write("<br />");
  document.write("Tab index of radio button 3: " + r3);
  }
</script>
</head>
<body>

<form>
<input type="radio" id="radio1" tabindex="1" /><br />
<input type="radio" id="radio2" tabindex="2" /><br />
<input type="radio" id="radio3" tabindex="3" /><br />
<input type="button" onclick="showTabIndex()" value="Show tabIndex" />
</form>

</body>
</html>
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