<title>jQuery一句话实现多选框全选/取消</title>
<script src="jquery-1.8.2.js" type="text/javascript"></script>
<script type="text/javascript">
function selectAll(obj) { //$('input[type=checkbox]').attr('checked'(checkbox).attr('checked'));
//此处最好是用getElementsByName去取相关标签属性,用getElementById根据id去取是不行的,没有效果。
var arr = window.document.getElementsByName("obj");
//var arr = window.document.getElementById("obj");
for (var i = 0; i < arr.length; i++) {
arr[i].checked = obj.checked;
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<input type="checkbox" name="obj" />
全选<br />
<input type="checkbox" name="obj" /><br />
<input type="checkbox" name="obj" /><br />
<input type="checkbox" name="obj" /><br />
<input type="checkbox" name="obj" /><br />
<input type="checkbox" name="obj" /><br />
<input type="checkbox" name="obj" /><br />
<input type="checkbox" name="obj" /><br />
<input type="checkbox" name="obj" /><br />
<input type="checkbox" name="obj" /><br />
</div>
</form>
</body>
</html>