How to remove class attribute from div?
<p>I am using JavaScript and I want to add/remove a Class attribute if a button is clicked. I am able to add the class, but I don't know how to remove it. how can I do that?</p>

<pre><code>window.onload = function(){
    var buttonGo = document.getElementsByTagName('button')[0];
    var buttonCom = document.getElementsByTagName('button')[1];
    var box = document.getElementById('box');
    buttonGo.onclick = function(){
        box.setAttribute('class','move');
    }
    buttonCom.onclick = function(){
        // how to remove class name?
    }
}
</code></pre>
