Change submit button to a loading image with jquery

Question

On a lot of sites lately, I\'ve seen buttons being replaced with loading/thinking images after they are pressed, to prevent double clicks and make sure the user knows something

Answer 1

My way of doing this:

$(document).ready(function () {
    $('.class_name').click(function () {
        $(this).parent().append('');
        $(this).hide();
    });
});