Added get_ajaxpost() method

htdocs/lib/form.php

@@ -466,6 +466,15 @@ class Form {
         return $this->method;
     }
 
+    /**
+     * Is the form being submitted by ajax?
+     *
+     * @return bool
+     */
+    public function get_ajaxpost() {
+        return $this->ajaxpost;
+    }
+
     /**
      * Returns the renderer used on to render the form
      *