function checkoutPopop(offerId,quantity,prductType) {
    if (offerId != null && offerId > 0) {
        var url = "";
        if (prductType == 1 || prductType == 2) {
            url= '/checkout/pageloadcurrencyitem/?offerId=' + offerId + "&quantity=" + quantity;
        }
        else if (prductType == 3) {
            url = '/checkoutaccount/pageloadaccount/?offerId=' + offerId;
        }
        else if (prductType == 4) {
            url = '/checkoutpowerleveling/pageloadpowerlevelingfromoffer/?offerId=' + offerId;
        }
        $(".bg-mask").css("display", "block");
        $.ajax({
            type: 'GET',
            url: url,
            contentType: 'application/html;charset=utf-8',
            dataType: 'html',
            success: function (data) {
                if (data == "please login.") {
                    var goLogin = mpa + 'login.html?returnurl=' + window.location.href + "?offerid=" + offerId + "&qty=" + quantity;
                    if (window.location.href.indexOf("?") > 0) {
                        goLogin = mpa + 'login.html?returnurl=' + window.location.href + "&offerid=" + offerId + "&qty=" + quantity;
                    }
                    location.href = goLogin;
                    return false;
                }
                else if (data == "Your account has been closed.") {
                    window.location.href = window.location.protocol + "//" + window.location.host + "/suspension";
                }
                else if (data == "You're not a buyer yet.") {
                    window.location.href = mpa + "regSuccessfulFea.html?hl=en";
                }
                else {
                    $("#cover").html(data).css({ "display": "block", "position": "fixed", "top": 0, "left": 0, "width": "100%", "height": "100%", "z-index": 1002 });//show chekcout page
                }
            },
            error: function (error) {
                alert(error);
            }
        });
    }
    
}