JQuery在iframe中实现 点击后选中当前栏目的样式

<script type="text/javascript">
$(function () {
$("#Nav_left ul li").each(function () {
$(this).click(function () {
$("#Nav_left ul li").removeClass("thisnav");
$(this).addClass("thisnav");
});
});
});
</script>

<div id="Nav_left">
<div class="left_cell">
<h1 onClick="javascript:ShowMenu(this,0)"  ><a href="javascript:void(0)"  class="LftA1">"十三五"项目管理</a></h1>
<span class="no">
<ul>
<li class="thisnav"><a href="SendSwitch.html" target="rightFrame">报送开送</a></li>
<li><a href="Send1.html" target="rightFrame">项目报送</a></li>
<li><a href="Project1.html" target="rightFrame">项目管理</a></li>
<li><a href="Users1.html" target="rightFrame">用户管理</a></li>
<li><a href="Category.html" target="rightFrame">分类管理</a></li>
<li><a href="Stage.html" target="rightFrame">项目阶段</a></li>
</ul>
</span>
</div>
</div>