rem: if (!this.isEnabled() || !this.isVisible()) return false; 
add: if (!this._enabled || !this.isVisible()) return false; 
context:     setFocus: function(focus) {        if (!this.isEnabled() || !this.isVisible()) return false;        this._setStandardStyle(focus);        return arguments.callee.$.call(this, focus);    },
meta: 5515	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5515/d532c0ea03ef1c91856bba5408f049541b39c2ba/Button.js/clean/src/thinwire/render/web/resources/Button.js