通过checkbox复选框控制层的显示隐藏
阅读次代码如下：
<html>
<head><title></title>
<META content = "text/html; charset = gb2312" http-equiv = Content-Type>
<META content = "MSHTML 5.00.2919.6307" name = GENERATOR>
<script type="text/javascript">
window.onload=function(){setInterval("show()",1000)}
function show(){
var ifcheck=document.getElementById("ck");
var showdiv=document.getElementById("dd");
if(ifcheck.checked)
{showdiv.style.display="none";}
else
{showdiv.style.display="block";}
}
</script>
</head>
<body>
<div>
<input type="checkbox" id="ck"/>显示/埋没
</div>
<div id="dd" style="border:1px solid black;width:300px;height:300px;background-color:gray;">
这是通过checkbox节制其显示/埋没的div
</div>
</body>
</html>以下方法请加载JQ：
<table>
<tr>
<th bgcolor="#FFFFFF" class="r_bg" width="20%">
登录界面背景：
</th>
<td align="left" bgcolor="#FFFFFF" class="right_bg" width="80%">
<img src="../images/<%=ImgName2 %>" alt="登录背景" style="background-repeat: repeat-x;
width: 140px; height: 100px;" />
<span style="width: 400px">
<asp:CheckBox ID="CheBox" runat="server" Text="修改" Width="50px" /></span>
</td>
</tr>
下面红色是隐藏那部分：
<tr id="upload1" style="display:none;">
<th bgcolor="#ffffff" class="r_bg">
浏览图片：
</th>
<td align="left" colspan="4" bgcolor="#ffffff" class="right_bg">
<asp:FileUpload ID="UploadImg" runat="server" Width="220px" />
<asp:Button ID="btn_chuan" runat="server" OnClick="btn_chuan_Click" OnClientClick="javascript:return checkfrom();" CssClass="btna" Text="←上传" />
<span style="color="red";">
<asp:Label ID="lblimage" runat="server"></asp:Label></span>
</td>
</tr>
</table>
JQuery代码：
<script type="text/javascript">
$("#CheBox").click(function () {
var $cr = $("#CheBox");
if ($cr.is(":checked")) {
$("#upload1").css("display", "block");
}
else {
$("#upload1").css("display", "none");
}
});
</script>