Index: css/site/widgets.styl
===================================================================
diff --git a/branches/ucs-4.2/ucs-4.2-1/management/univention-web/css/site/widgets.styl b/branches/ucs-4.2/ucs-4.2-1/management/univention-web/css/site/widgets.styl
--- a/branches/ucs-4.2/ucs-4.2-1/management/univention-web/css/site/widgets.styl	(Revision 81235)
+++ b/branches/ucs-4.2/ucs-4.2-1/management/univention-web/css/site/widgets.styl	(Arbeitskopie)
@@ -100,6 +100,25 @@
 .umc .umcMultiSelect
 	border: 1px solid $border-color
 
+	.umcMultiSelectDisabledOverlay
+		display: none
+		background-color: $disabled-background-color
+		opacity: 0.2
+		position: absolute
+		top: 0
+		right: 0
+		bottom: 0
+		left: 0
+
+	&.umcMultiSelectDisabled
+		color: $text-color-lightest
+
+		.umcMultiSelectDisabledOverlay
+			display: block	
+
+		.dojoxGridRowSelector
+			opacity: 0.6
+
 .umc .umcProgressBar,
 .umc .umcProgressInfo
 	width: 400px
Index: js/widgets/MultiSelect.js
===================================================================
diff --git a/branches/ucs-4.2/ucs-4.2-1/management/univention-web/js/widgets/MultiSelect.js b/branches/ucs-4.2/ucs-4.2-1/management/univention-web/js/widgets/MultiSelect.js
--- a/branches/ucs-4.2/ucs-4.2-1/management/univention-web/js/widgets/MultiSelect.js	(Revision 81235)
+++ b/branches/ucs-4.2/ucs-4.2-1/management/univention-web/js/widgets/MultiSelect.js	(Arbeitskopie)
@@ -36,6 +36,7 @@
 	"dojo/query",
 	"dojo/dom-class",
 	"dojox/grid/EnhancedGrid",
+	"put-selector/put",
 	"../tools",
 	"./_SelectMixin",
 	"./_FormWidgetMixin",
@@ -43,7 +44,7 @@
 	"./_RegisterOnShowMixin",
 	"dojox/grid/enhanced/plugins/IndirectSelection",
 	"dojox/grid/cells"
-], function(declare, lang, array, Deferred, query, domClass, EnhancedGrid, tools, _SelectMixin, _FormWidgetMixin, StandbyMixin, _RegisterOnShowMixin) {
+], function(declare, lang, array, Deferred, query, domClass, EnhancedGrid, put, tools, _SelectMixin, _FormWidgetMixin, StandbyMixin, _RegisterOnShowMixin) {
 	return declare("umc.widgets.MultiSelect", [ EnhancedGrid, _FormWidgetMixin, _SelectMixin, StandbyMixin, _RegisterOnShowMixin ], {
 		// summary:
 		//		This class represents a MultiSelect widget. Essentially, it adapts a DataGrid
@@ -96,6 +97,11 @@
 			}
 		},
 
+		buildRendering: function() {
+			this.inherited(arguments);
+			put(this.domNode, 'div.umcMultiSelectDisabledOverlay');
+		},
+
 		postCreate: function() {
 			this.inherited(arguments);
 
@@ -237,6 +243,11 @@
 			// stop standby animation and re-render
 			this.standby(false);
 			this.render();
+		},
+
+		_setDisabledAttr: function(disabled) {
+			domClass.toggle(this.domNode, 'umcMultiSelectDisabled', disabled);
+			this._set('disabled', disabled);
 		}
 
 		/*adaptHeight: function() {