core_js_17.js

var Test = function() {
     this.print= function() {
          alert("this.print");
     };
};

Object.prototype.print= function() {
     alert("Object.prototype.print");
};

Function.prototype.print = function() {
     alert("Function.prototype.print");
};

Test.prototype.print= function() {
     alert("Test.prototype.print");
};

Test.print = function() {
     alert("Test.print");
}

Test.print();