rem: SimileAjax.History._listeners.push(listener); 
add: SimileAjax.History._listeners.add(listener); 
context: SimileAjax.History.addListener = function(listener) {    SimileAjax.History.initialize();        SimileAjax.History._listeners.push(listener);};
meta: 6194	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/6194/ad43220ac38569f1b1e9c78f3783829b1f665216/history.js/clean/src/webapp/api/scripts/history.js