Clear Windows Authentication Cache

/**
 * ASP.NET Windows Authentication Logout
 *
 * For IE browsers only!
 *
 * For IE browsers only, you can use the following javascript to logout the user
 * if using Windows Authentication. (Note: closing the browser isn't required,
 * but recommended since the user might be using a non-IE browser).
 *
 * If the user clicks "No" to close the browser, then the user will be prompted
 * for a username/password if they attempt to access a page on the site that
 * requires authentication.
 *
 * NOTE: It's also worth pointing out that the "ClearAuthenticationCache"
 * command clears ALL authentication data, not just for the site which requested
 * it.
 *
 * http://stackoverflow.com/a/5731523
 */
function logOut() {
    try {
        document.execCommand("ClearAuthenticationCache");
    } catch (e) {}
    window.close();
}