rem: register: function(responderToAdd) { if (!this.include(responderToAdd)) this.responders.push(responderToAdd); 
add: register: function(responder) { if (!this.include(responder)) this.responders.push(responder); 
context:   register: function(responderToAdd) {    if (!this.include(responderToAdd))      this.responders.push(responderToAdd);  },
meta: 4707	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/4707/50c3492c4c3c825dbd3401e134a19ed46799c456/prototype.js/clean/www/resources/prototype/prototype.js