var HelloWorldApp = HelloWorldApp || {};
HelloWorldApp.namespace = function (nameSpaceAsString) {
    var parts = nameSpaceAsString.split('.'),
    parent = HelloWorldApp,
    i;

    if (parts[0] === "HelloWorldApp") {
        parts = parts.slice(1);
    }

    for (i = 0; i < parts.length; i = i + 1) {
        if (typeof parent[parts[i]] === 'undefined') {
            parent[parts[i]] = {};
        }

        parent = parent[parts[i]];
    }

    return parent;
}