jquery二级目录选中当前页的样式

<div class="navlist clear">

<span><a   href="/M/Page_32.html"   title="内科"  >内科</a></span>

<span><a   href="/M/Page_35.html"   title="外科"  >外科</a></span>

<span><a   href="/M/Page_37.html"   title="妇产科"  >妇产科</a></span>

<span><a   href="/M/Page_38.html"   title="儿科"  >儿科</a></span>

<span><a   href="/M/Page_39.html"   title="五官科"  >五官科</a></span>

<span><a   href="/M/Page_40.html"   title="中医科"  >中医科</a></span>

<span><a   href="/M/Page_41.html"   title="急诊科"  >急诊科</a></span>

<span><a   href="/M/Page_42.html"   title="口腔科"  >口腔科</a></span>

<span><a   href="/M/Page_43.html"   title="疼痛康复科"  >疼痛康复科</a></span>

<span><a   href="/M/Page_44.html"   title="病理科"  >病理科</a></span>

<span><a   href="/M/Page_46.html"   title="医技科室"  >医技科室</a></span>

<script>
    var url = window.location.href;
    $(".navlist span a").each(function () {
        if (url.indexOf($(this).attr("href")) > 0) {
            $(this).addClass("curent")
        }
    })

</script>
 </div>

js中判断当前页面URL是否包含二级栏目中的url