how to disable submit button on form submit using Jquery?

Consider we have this HTML form
<form id="check" action="url.php" method="get"> 
<input name="username" />

<input id="submit" type="submit" />

</form>

Here the jquery code to disable submit button 

$('#check').submit(function(){

$('input[type=submit]', this).attr('disabled', 'disabled');

});