<!DOCTYPE html>
<html lang="en-US">
<body>
<p>Press 'Tab' key to navigate through input.</p>
<p>Name</p>
<input type="text" value="John">
<p>Age</p>
<input type="text" value="45" autofocus>
<p>Gender</p>
<input type="text" value="Male">
<script>
document.getElementsByTagName("input")[0].tabIndex = "2";
document.getElementsByTagName("input")[1].tabIndex = "1";
document.getElementsByTagName("input")[2].tabIndex = "3";
</script> </body>
</html>