diff --git a/js/ui.multiselect.js b/js/ui.multiselect.js
index 3f653d8..055ef07 100755
--- a/js/ui.multiselect.js
+++ b/js/ui.multiselect.js
@@ -163,7 +163,8 @@ $.widget("ui.multiselect", {
 	},
 	_getOptionNode: function(option) {
 		option = $(option);
-		var node = $('<li class="ui-state-default ui-element" title="'+option.text()+'"><span class="ui-icon"/>'+option.text()+'<a href="#" class="action"><span class="ui-corner-all ui-icon"/></a></li>').hide();
+        var disabled_class = option.is(':disabled') ? 'disabled' : '';
+		var node = $('<li class="ui-state-default ui-element '+disabled_class+'" title="'+option.text()+'"><span class="ui-icon"/>'+option.text()+'<a href="#" class="action"><span class="ui-corner-all ui-icon"/></a></li>').hide();
 		node.data('optionLink', option);
 		return node;
 	},
@@ -225,8 +226,13 @@ $.widget("ui.multiselect", {
 			
 		} else {
 			item.children('span').removeClass('ui-icon-arrowthick-2-n-s').addClass('ui-helper-hidden').removeClass('ui-icon');
-			item.find('a.action span').addClass('ui-icon-plus').removeClass('ui-icon-minus');
-			this._registerAddEvents(item.find('a.action'));
+            
+            if(!item.hasClass('disabled')) {
+                item.find('a.action span').addClass('ui-icon-plus').removeClass('ui-icon-minus');
+                this._registerAddEvents(item.find('a.action'));
+            } else {
+                item.find('a.action span').removeClass('ui-icon');
+            }
 		}
 		
 		this._registerDoubleClickEvents(item);
@@ -289,7 +295,8 @@ $.widget("ui.multiselect", {
 		if (this.options.sortable) {
   		elements.each(function() {
   			$(this).parent().draggable({
-  	      connectToSortable: that.selectedList,
+                cancel: ".disabled",
+                connectToSortable: that.selectedList,
   				helper: function() {
   					var selectedItem = that._cloneWithData($(this)).width($(this).width() - 50);
   					selectedItem.width($(this).width());