//获取所有选中的CheckBox的id

    function getCheckBox() {

        var spCodesTemp = "";

        $("input:checkbox[name=IsOnSell]:checked'").each(function(i) {

            if (0 == i) {

                spCodesTemp = $(this).attr("id");

            } else {

                spCodesTemp += ("," + $(this).attr("id"));

            }

        });

        alert(spCodesTemp);

    }