Index: multiselect.js
===================================================================
--- multiselect.js	(revision 348)
+++ multiselect.js	(revision )
@@ -14,7 +14,7 @@
   
       // Note: Doesn't matter what sort of submit button it is really (preview or submit)
       // Selects all the items in the selected box (so they are actually selected) when submitted
-      $('input.form-submit:not(.multiselect-processed)', context).addClass('multiselect-processed').click(function() {
+      $('.form-submit:not(.multiselect-processed)', context).addClass('multiselect-processed').click(function() {
         $('select.multiselect_sel').selectAll();
       });