Javascript click event firing twice, even with stopPropagation

Question

I have a set of items like this:

<label for="Cadenza-1" class="cars">
    <input type="checkbox" value="1" alt="Cadenza" id="Cadenza-1" name="vehicles[]">
    <img src="img/bill_murray_173x173.jpg">
    <span>Cadenza</span>
</label>

there's about 13 of them. I want to add a class to the label when clicked. However, the click event fires twice. right now I'm debugging the click event then I'll add the class:

var cars = document.getElementsByClassName('cars');

for(var c = 0;c < cars.length; c++){
    cars[c].addEventListener("click", function(e){
        selectVehicle(cars[c],e);
    },false);
}

function selectVehicle(el,e) {
    console.log(e);
    e.stopPropagation();
}

The console.log fires twice.

Answer 1

Try adding preventDefault after your stopPropogation:

function selectVehicle(el,e) {
    console.log(e);
    e.stopPropagation();
    e.preventDefault();
}

I believe it is best to place console.log(e) after the stopPropogation & preventDefault though. You will also then need to implement functionality to set the checkbox to checked since this would prevent that from happening.