diff -r 4ea23db9c6e3 -r 6a5e0d867964 src/ztfy/myams/resources/js/myams.js
--- a/src/ztfy/myams/resources/js/myams.js	Wed Nov 02 14:43:53 2016 +0100
+++ b/src/ztfy/myams/resources/js/myams.js	Fri Nov 25 16:30:29 2016 +0100
@@ -1371,7 +1371,7 @@
 		 */
 		resetChanged: function(form) {
 			if (form !== undefined) {
-				form.removeAttr('data-ams-form-changed');
+				$(form).removeAttr('data-ams-form-changed');
 			}
 		},
 
@@ -2442,9 +2442,8 @@
 				if (plugins.hasOwnProperty(name)) {
 					var plugin = plugins[name];
 					plugin.css = plugin.css || new_plugin.css;
-					if (new_plugin.callback) {
-						plugin.callbacks.push(new_plugin.callback);
-					}
+					plugin.callbacks.push(new_plugin.callback);
+					plugin.contexts.push(new_plugin.context);
 					if (new_plugin.register) {
 						plugin.register = true;
 					}
@@ -2456,6 +2455,7 @@
 						src: new_plugin.src,
 						css: new_plugin.css,
 						callbacks: new_plugin.callback ? [new_plugin.callback] : [],
+						contexts: [new_plugin.context],
 						register: new_plugin.register,
 						async: new_plugin.async
 					};
@@ -2477,6 +2477,7 @@
 							src: source.data('ams-plugin-' + name + '-src'),
 							css: source.data('ams-plugin-' + name + '-css'),
 							callback: source.data('ams-plugin-' + name + '-callback'),
+							context: source,
 							register: source.data('ams-plugin-' + name + '-register'),
 							async: source.data('ams-plugin-' + name + '-async')
 						};
@@ -2498,6 +2499,7 @@
 			function _loadPlugin() {
 				var index;
 				var callbacks = plugin.callbacks;
+				var contexts = plugin.contexts;
 				if (callbacks && callbacks.length) {
 					for (index=0; index < callbacks.length; index++) {
 						var called = ams.getFunctionByName(callbacks[index]);
@@ -2519,7 +2521,7 @@
 				// before callback is called so we call plug-in manually
 				if (callbacks && callbacks.length && (plugin.async !== false)) {
 					for (index=0; index < callbacks.length; index++) {
-						ams.getFunctionByName(callbacks[index])(element);
+						ams.getFunctionByName(callbacks[index])(contexts[index]);
 					}
 				}
 			}