JS、CSS 简单的控制层的现实与隐藏

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head
meta http-equiv="Content-Type" content="text/html; charset=gb2312" /
titleJS、CSS 简单的控制层的现实与隐藏—Y7L8’Blog/title
style
body{margin:0 auto;text-align:center;padding-top:180px;}
div{width:100px;height:200px;background:#f00;margin:0 auto 10px;}
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body
div id="test" style="display:block"JS、CSS 简单的控制层的现实与隐藏—Y7L8’Blog/div
input type="button"  value="隐藏"; id="clickbutton"
script type="text/javascript"
    var obj=document.getElementById("test");
    document.getElementById("clickbutton").onclick=function (){
        if(obj.style.display=="block"){
             obj.style.display="none";
             document.getElementById("clickbutton").value="显示";        }
       else{
           obj.style.display="block";
           document.getElementById("clickbutton").value="隐藏";       }
}
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