<script>

    ; (function (e) {
        e.ChangeStatus = ChangeStatus
        function ChangeStatus(url) {
            if (this instanceof ChangeStatus) {
            }
            else {
                return new ChangeStatus(url);
            }
            this.url = url;
        }
        ChangeStatus.prototype.ajax = function () {
            if (checkout) {
                checkout();
            }
            var img = Image ? new Image() : document.createElement("img");
            img.src = this.url;
        }
    }(window))
    var url = "/SaveStatus?Status=10";
    var change = new ChangeStatus(url);
    var changeStatus = $.proxy(change.ajax, change);

    window.onbeforeunload = function () {
        changeStatus();
        return "离开?"
    };
    if (window.addEventListener) {
        window.addEventListener("beforeunload", changeStatus, false);
    } else if (window.attachEvent) {
        window.attachEvent("onbeforeunload", changeStatus);
    } else {
        window["onbeforeunload"] = changeStatus;
    }

</script>

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