javascript - Can addEventListener point to an object's own function?

I don't know if this is a limitation of AddEventListener or if I just have a stupid error in my code. Assuming this JS in body.onload():

var barObjects = new Array(-1)

var barDivs = document.getElementsByClassName("bar");
for (var i=0; i    barObjects.push(new barObject(barDivs[i]));
}

function barObject(whichDiv) {
    this.myDiv=whichDiv;

    whichDiv.addEventListener("mouseDown",this.clicked,false);

    this.clicked = function(e) {
        alert("clicked!");
    }
}

and this HTML:

Click me!
No, click me!

How can I get this.clicked() to fire when the text is clicked?

Here it is as a JSFiddle. Thanks!

EDIT: While I'm sure this has been asked before, I couldn't find it, and the linked duplicate doesn't seem to be the same question at all unless I'm missing something big. Nik and Anthony's comments below solved the problem.