Function.prototype.bind2 = function(context){

var self = this;

var args = [].slice.call(arguments,1);

var returnfn = function(){

var args2 = [].slice.call(arguments);

return self.apply(this instanceof returnfn ?this:context,args.concat(args2));

}

function returnFather(){}

returnFather.prototype = this.prototype;

returnfn.prototype = new returnFather();

return returnfn;

}