* Make checkout form submit event handler specific enough to match on…

…ly checkout form and not others.

js/pmpro-checkout.js

@@ -130,7 +130,7 @@ jQuery(document).ready(function(){
     }
 
 	// Find ALL <form> tags on your page
-	jQuery('form').submit(function(){
+	jQuery('form#pmpro_form').submit(function(){
 		// On submit disable its submit button
 		jQuery('input[type=submit]', this).attr('disabled', 'disabled');
 		jQuery('input[type=image]', this).attr('disabled', 'disabled');