<script type="text/javascript">
function showsubmenu()
{
$("#submenu_1").show();
$("#submenu_1").css("currentMenu");
$(this).css('currentMenu');
}
</script>
<div class="menu">
<ul>
<li class="noborder"> </li>
<li><span><a href="#" onclick="showsubmenu()">first</a></span></li>
<li><span><a href="#" onclick="showsubmenu()">second</a></span></li>
<li><span><a href="#" onclick="showsubmenu()">three</a></span></li>
<li><span><a href="#" onclick="showsubmenu()">four</a></span></li>
</ul>
</div>
<div class="submenu">
<span id="submenu_1">
<ul>
<li><a href="#">first_1</a></li>
<li><a href="#">first_2</a></li>
<li><a href="#">first_3</a></li>
</ul>
</span>
</div>
$("#submenu_1").css("currentMenu");
$(this).css('currentMenu');
这两行怎么不起作用?没反应
currentNenu我定义在css文件时,包含进去了
只有$("#submenu_1").show();这个起作用
------解决方案--------------------
$("#submenu_1").addClass("currentMenu");
$(this).addClass('currentMenu');
添加 css类名 用 addClass