​

window.onload = function() {

​

function listen() {

     alert( this);

  }

​

var evtListener = listen.bind('hello');

document.getElementById('b1').addEventListener("click", evtListener);

 function removeNaive() {

document.getElementById('b1').removeEventListener("click", listen.bind('hello'));   

  }

    function removeStored() {

document.getElementById('b1').removeEventListener("click",evtListener);

  }

​

document.getElementById('b2').onclick=removeNaive;

document.getElementById('b3').onclick=removeStored;

​

}

​