Setting a basic selected state on an element

Setting a basic selected state on an element

Is this the best way to handle setting a selected state on a specific item in a list? Or is there a cleaner method I'm overlooking? Thanks!

<ul class="parentElement">
     <li class="childElement selected">Child1</li>
     <li class="childElement">Child2</li>
     <li class="childElement">Child3</li>
</ul>

$(".childElement").click(function () {
     var itemNum = $(this).index();
     $(".parentElement").children().removeClass("selected");
     $(".childElement").eq(itemNum).addClass("selected");
});