Order Confirmation Processing Block .. vs duplicate orders

[carlwhat]

i'm a fan of removing the button after clicking it.

on another spot on one of my sites site i used the following jquery code to remove the button:

$(function() {
    $('#auth_button img').on("click", function (e) {
        $("#auth_button a").replaceWith("<img src='includes/languages/english/images/buttons/processing.gif' border='0' alt='Waiting' title='Waiting'>");
	});
});

button replaces with:



best.