gistfile1.txt

	$.fn.extend({
		disableSubmit: function () {
	   		return $(this).data('label',$(this).val()).attr('disabled',true).addClass('disabled').val($co.submitting);
		},
		enableSubmit: function (){
			return $(this).attr('disabled', false).removeClass('disabled').val($(this).data('label'));
		}
	});

	// Validate paycard number before submit
	checkoutForm.on('shopp_validate',function () {
		var submitButtons = checkoutButtons.find('input').disableSubmit();
		if (!validcard()) checkoutForm.data('error', ["Not a valid card number.",billCard.get(0)]);
		if ( checkoutForm.data('error').length > 0 ) submitButtons.enableSubmit();
	}).on('submit', function (e) {
	    e.preventDefault();
		setTimeout(function () { checkoutForm.unbind('submit').submit(); }, 1); // Give time for the button style to change
	});