ext extend usage

just for fun !

var x = function(){
	 		return {toString2 : function(){return "x";}}
	 	}() ;
	 	
		y = function(){
			y.superclass.constructor.call(this);
		};
		
		Ext.extend(y,x,{
			toString2 : function(){return "y";}
		});	 	 
		
		var xxx=new y();	
		alert(xxx.toString2());