rem: if (fn != Function.empty){ 
add: if (fn != $empty){ 
context: 	addEvent: function(type, fn){		if (fn != Function.empty){			this.$events = this.$events || {};			this.$events[type] = this.$events[type] || [];			this.$events[type].include(fn);		}		return this;	},
meta: 6317	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/6317/06922312396df156a34eea7232801f69ce9461b7/Class.Extras.js/clean/Class/Class.Extras.js