define(["dojo/_base/declare",
        "dojo/on",
        "dojo/topic",
        "dijit/form/RadioButton"],
       function(declare, on, topic, RadioButton) {
           return declare("lsmb/PublishRadioButton", [RadioButton], {
               topic: "",
               publish: function() {
                   topic.publish(this.topic, this.value);
               },
               postCreate: function() {
                   var self = this;
                   this.inherited(arguments);
                   this.own(
                       on(this.domNode, "change",
                          function() {
                              self.publish();
                          })
                   );
               }
           });
       });
