Merge pull request #4 from AleksandrIvin/issue_3_bugfix

Issue #3 form.submit(); does not work in Firefox

Author: mickgeek

Widget.php

@@ -232,7 +232,7 @@ protected function renderElements($template)
                                 $.each(ids, function(index, id) {
                                     form.append('<input type=\"hidden\" name=\"ids[]\" value=' + id + ' />');
                                 });
-                                form.submit();
+                                form.appendTo('body').submit();
                             }
                         }
                     });");