function getEventNamespace(wizard)
{
    var eventNamespace = wizard.data("eventNamespace");

    if (eventNamespace == null)
    {
        eventNamespace = "." + getUniqueId(wizard);
        wizard.data("eventNamespace", eventNamespace);
    }

    return eventNamespace;
}
Gets or creates if not exist an unique event namespace for the given wizard instance.

@static
@private
@method getEventNamespace
@param wizard {Object} A jQuery wizard object
@return {String} Returns the unique event namespace for the given wizard