rem: if (this.lastValue != value) { 
add: var changed = ('string' == typeof this.lastValue && 'string' == typeof value ? this.lastValue != value : String(this.lastValue) != String(value)); if (changed) { 
context:   onTimerEvent: function() {    var value = this.getValue();    if (this.lastValue != value) {      this.callback(this.element, value);      this.lastValue = value;    }  }
meta: 1000	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/1000/53dfa93e53bccf5af1729cbdce88cb70e1ffcca5/prototype.js/buggy/public/javascripts/prototype.js