rem: extend: function(properties){ properties.Extends = this; return new Class(properties); } 
add: Class.prototype.extend = function(properties){ properties.Extends = this; return new Class(properties); }; 
context: 	extend: function(properties){		properties.Extends = this;		return new Class(properties);	}
meta: 5237	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5237/700b00b7eceeadf6c14a02a0f5cc9cfe43b2a852/Class.js/buggy/Compatibility/Class/Class.js