Events precedence across browsers http://jsbin.com/zidap/2/edit

index.js

// Chrome 41 a>b>c
// FF 31 a>b>c
// IE10 a>b>c
// IE9 a>b>c
// IE8 b>c>a (opposite order, taking events wtih .onclick with higher precedence)

(function() {
  var
    myDiv = document.getElementById('myDiv'),
    evt = 'click';
  
  if ( !myDiv.addEventListener ) {
    
     myDiv.addEventListener = myDiv.attachEvent;
     evt = 'on' + evt;
     
  }
 
  myDiv.addEventListener(evt, function() {
        alert('click a');
  });
  
  myDiv.onclick = function() {
    alert('click b');
  };
  
  myDiv.addEventListener(evt, function() {
    alert('click c');
  });
  
}());