js针对reprater控件内的控件checkbox的全选和全不选

<script type="text/javascript"> 

$(function () {

            $("#cbCheckAll").click(function () {
                if ($(this).attr("checked") == true) {        //取得属性的值
                    $("input[id=cbCheck]").each(function () {
                        $(this).attr("checked", true);           //为属性赋值
                    })
                } else {
                    $("input[id=cbCheck]").each(function () {
                        $(this).attr("checked",false);
                    })
                }
            })

        })

</script>