// Create GUID / UUID in JavaScript?
// https://stackoverflow.com/a/2117523
муром.uuid = function()
{
    return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(
        /[xy]/g,
        function(c)
        {
            var r = Math.random() * 16 | 0, v = c == 'x' ? r : (r & 0x3 | 0x8);
            return v.toString(16);
        }
    );
};