js 传值问题 缺少对象
<script type="text/javascript" language=javascript>
        function meunshow(did)
        {
            alert(did)
            document.getElementById(did).style.display=(document.getElementById(did).style.display =='' || document.getElementById(did).style.display =='none')?'block':'none'
            
        }
</script>
<a href="#" onclick="meunshow('DIV1')">全部分类</a>
<div id="Div1" style="">
                                <ul>
                                    <li>服饰1</li>
                                    <li>服饰1</li>
                                    <li>服饰1</li>
                                    <li>服饰1</li>
                                    <li>服饰1</li>
                                </ul>
                            </div>