chesterfobitt,
<!DOCTYPE HTML>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<script>
$(function()
{
$("input.4").keydown(function(event)
{
if(event.which == 9) {
event.preventDefault();
$("input.1")[0].select();
$("input.1")[0].focus();
}
}
)
}
);
</script>
</head>
<body>
<input type="text" value="" data-last="" class="1" tabindex="1"><br /><br />
<input type="text" value="" data-last="" class="2" tabindex="2"><br /><br />
<input type="text" value="" data-last="" class="3" tabindex="3"><br /><br />
<input type="text" value="" data-last="" class="4" tabindex="4">
</body>
</html>