全选/全不选
HTML code
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="Scripts/jquery-1.4.1.min.js" type="text/javascript"></script>
<script type="text/javascript">
function selectAll(checkbox) {
$('input[type=checkbox]').attr('checked', $(checkbox).attr('checked'));
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<input type="checkbox" onclick="selectAll(this);" />全选<br/>
<input type="checkbox" /><br/>
<input type="checkbox" /><br/>
<input type="checkbox" /><br/>
<input type="checkbox" /><br/>
<input type="checkbox" /><br/>
<input type="checkbox" /><br/>
</div>
</form>
</body>
</html>