var A=function(){
};

$.extend(A.prototype, {
        init:function(){
                alert('A init');
        }
});
var B=function(){

};

$.extend(B.prototype,A.prototype,{
        init:function(){
                alert('B init');
        }
});
var p=new A();
p.init();
var x=new B();
x.init();

is the above the best way to create class and inheritance in jQuery?
In B's init how do I invoke parent's init (similar to super.init() in
OO languages)?