效果:
代碼:
復制代碼 代碼如下:
<head runat="server">
    <title></title>
    <script type="text/javascript">
        window.onload = function () {
            var ckall = document.getElementById('ck1');
            var ck = document.getElementsByName('name1');
            ckall.onclick = function () {
                for (var i = 0; i < ck.length; i++) {
                    if (ckall.checked == true) {
                        ck[i].checked = true;
                    }
                    else {
                        ck[i].checked = false;
                    }
                }
            }
        };
    </script>
</head>
<body>
    <form runat="server">
    <input type="checkbox" />
    全選
    <div>
        <input type="checkbox" />
        <input type="checkbox" />
        <input type="checkbox" />
        <input type="checkbox" />
        <input type="checkbox" />
        <input type="checkbox" />
    </div>
    </form>
</body>
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