rem: if(typeof queueName != 'string') return queueName; 
add: if (!Object.isString(queueName)) return queueName; 
context:   get: function(queueName) {    if(typeof queueName != 'string') return queueName;        if(!this.instances[queueName])      this.instances[queueName] = new Effect.ScopedQueue();          return this.instances[queueName];  }
meta: 9100	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/9100/2d4247a14ff4ce25ad80cbc65b787dfde7ddb16e/effects.js/buggy/typo3/contrib/scriptaculous/effects.js