Так вот еще...
<div class="object">1</div>
<div class="object">2</div>
<div class="object">3</div>
<div class="object">4</div>
<div class="object">5</div>
<script type='text/javascript'>
var obj;
while (obj=document.getElementsByClassName('object'),obj[0]) {
obj[0].remove();
}
</script>