this[key] = value; 
Hash.set(this, key, value); 
	extend: function(properties){		Hash.each(properties, function(value, key){			this[key] = value;		}, this);		return this;	},
9494	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/9494/7f57639a9463cd4e2577f39af7503ce7d0e73459/Hash.js/clean/Source/Native/Hash.js