rem: if (!source) return this; for (var type in source) this.addEvent(type, source[type]); 
add: if (source){ for (var type in source) this.addEvent(type, source[type]); } 
context: 	addEvents: function(source){		if (!source) return this;		for (var type in source) this.addEvent(type, source[type]);		return this;	},
meta: 6698	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/6698/4da6686ebc01d47f45382bb6f6e0a15b68d1dc75/Element.js/clean/Native/Element.js