jQuery当前导航链接高亮

<div class="nav">
    <ul>
        <li><a href="index1.html">网站首页1</a></li>
        <li><a href="index2.html">网站首页2</a></li>
        <li><a href="index3.html">网站首页2</a></li>
        <li><a href="index4.html">网站首页2</a></li>
    </ul>
</div>

<script type="text/javascript">
$(".nav li a").each(function(){
    $this = $(this);
        if($this[0].href==String(window.location)){
            $this.parent().addClass("selected");
        }
});
</script>