function ButtonEvent(id){this.base=Button;this.base(id);this.type="ButtonEvent";this.hashcode="ButtonEvent@"+Math.floor(Math.random()*9999999999);this.event=null;this.setEvent=bt_setEvent;this.getEvent=bt_getEvent;function bt_setEvent(evt){this.event=evt;}
function bt_getEvent(){return this.event;}}