this.isIE = (ua.indexOf('msie') != -1 && !this.isOpera && (ua.indexOf('webtv') == -1) );
this.isMozilla = (this.isGecko && ua.indexOf('gecko/') + 14 == ua.length);
this.isFirebird = (ua.indexOf('firebird/') != -1);
this.isIE = (ua.indexOf('msie') != -1 && !this.isOpera && (ua.indexOf('webtv') == -1) );
this.isMozilla = (this.isGecko && ua.indexOf('gecko/') + 14 == ua.length);
this.isFirebird = (ua.indexOf('firebird/') != -1);