Easyui 搜索框的折叠与展开方法

<div >
        style="height:185px;overflow-y: hidden">
        <form >
            <ul class="searchUl">
                <li class="searchLi"><span class="searchTitle">XXXXX:</span><span><input
                        id="XXX" name="XXXX" class="easyui-textbox" value="" /></span></li>
            </ul>
            <ul class="searchUl" style="margin-top:-8px">
                <li><a >a
                    id="clearbtn" class="easyui-linkbutton">清空</a></li>
            </ul>
        </form>
    </div>

//页面搜索框默认展开
$('body').layout('expand', 'north');

//页面搜索框默认折叠

$("#searchForm").layout('collapse','north');