function setTitle(value) {
            var appTitle = ko.unwrap(app.title);

            if (appTitle) {
                document.title = value + " | " + appTitle;
            } else {
                document.title = value;
            }
        }
Attempt to load the specified URL fragment. If a route succeeds with a match, returns `true`. If no defined routes matches the fragment, returns `false`.
@method loadUrl
@param {string} fragment The URL fragment to find a match for.
@return {boolean} True if a match was found, false otherwise.