Shims for form-level notifications in Microsoft Dynamics CRM 2011 (pre/post UR12) compatible with the notifications API from CRM 2013.

notifications-dynamics-crm-2011.js

// Notification shims for Dynamics CRM 2011 (both pre and post UR12).
// The API is identical to the native (supported) notifications in
// Dynamics CRM 2013. Please note that calling undocumented JavaScript functions
// is not officially supported by Microsoft, which makes these shims
// "unsupported". But since the API is compatible with 2013 the upgrade path
// is straightforward (just remove the code completely, or leave them if you
// prefer - either should be fine).
if (typeof(Xrm.Page.ui.clearFormNotification) === "undefined") {
    Xrm.Page.ui.clearFormNotification= function(messageId) {
        var crmNotifications = 
            typeof($find) === "function" && $find("crmNotifications") ? 
            $find("crmNotifications") :
            document.getElementById("crmNotifications");
        if (crmNotifications && typeof(crmNotifications.SetNotifications) !== "undefined") {
            crmNotifications.SetNotifications(null, messageId);
        } else {
            throw "Unable to implement shim for Xrm.Page.ui.clearFormNotification.";
        }
    };
}
if (typeof(Xrm.Page.ui.setFormNotification) === "undefined") {
    Xrm.Page.ui.setFormNotification = function(message, level, messageId) {
        if (typeof(Xrm.Page.ui.clearFormNotification) === "function") {
            Xrm.Page.ui.clearFormNotification(messageId);
        }
        var crmNotifications = 
            typeof($find) === "function" && $find("crmNotifications") ? 
            $find("crmNotifications") :
            document.getElementById("crmNotifications");
        if (crmNotifications && typeof(crmNotifications.AddNotification) !== "undefined") {
            var levelMap = { 
                "ERROR": 1,
                "WARNING": 2,
                "INFO": 3
            };
            crmNotifications.AddNotification(messageId, levelMap[level], messageId, message);
        } else {
            throw "Unable to implement shim for Xrm.Page.ui.setFormNotification.";
        }
    };
}