rem: this.periods.forEach(function (p) { p.events = []; }); 
add: this.periods.forEach(function (when) { dump(when.title + ": " + when.start + " -> " + when.end + "\n"); }); 
context:     this.periods.forEach(function (p) { p.events = []; });
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/93f01c66af4b2e0e14a837f9f5f922c2913a50cf/agenda-tree.js/clean/calendar/lightning/content/agenda-tree.js