rem: if (value == null) return false; if (this.obj[key] == undefined) this.length++; 
add: if (value === undefined) return false; if (this.obj[key] === undefined) this.length++; 
context: 	set: function(key, value) {		if (value == null) return false;		if (this.obj[key] == undefined) this.length++;		this.obj[key] = value;		return this;	},
meta: 6698	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/6698/2f00bcee8e2a9577e18cd8c5c5c7c594651a3811/Hash.js/clean/Addons/Hash.js