rem: this[key] = value; 
add: Hash.set(this, key, value); 
context: 		Hash.each(properties, function(value, key){			this[key] = value;		}, this);
meta: 7052	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/7052/7f57639a9463cd4e2577f39af7503ce7d0e73459/Hash.js/clean/Source/Native/Hash.js