Tabmaster: in-page tab navigation management

tabmaster.html

<label for="username">Username</label>
(<a id="register-link" data-tabto="reset-link" href="#">register</a>)
<input id="username" type="text" data-tabmaster="true" data-tabto="password" />

<label for="password">Password</label>
(<a id="reset-link" data-tabto="submit" href="#">reset password</a>)
<input id="password" type="password" data-tabto="register-link" />

<input id="submit" data-tabmaster="false" type="submit" value="Submit" />

tabmaster.js

var tabMaster = false;

$('body').on('focus', '[data-tabmaster]', function() {

	tabMaster = $(this).attr('data-tabmaster');

});

$('body').on('keydown', '[data-tabto]', function(e) {

	var target = $(this).attr('data-tabto');

	if (e.which == 9 && !e.shiftKey && tabMaster == "true") {
		e.preventDefault();
		console.log('tab detected');
		$('#' + target).focus();
	} else if (e.shiftKey) {

		tabMaster = false;

	};

});