function bookmark()
{
    var appname = navigator.appName;
    if (appname == 'Netscape')
    {
        alert('We'+"'"+ 're sorry but this bookmark feature will only work for Microsoft Internet Explorer. Please add the Reliable Web site to your bookmark by pressing Ctrl-D.Then edit the bookmark properties to say only http://www.reliable.com/ '+
            'Thanks for visiting us!');
    }
    else
    {
        if (confirm('Click OK to add the Reliable Web site to your Favorites. When you select Reliable Office Supplies from your Favorites, you will go to the '+
             'Home Tab. Thanks for visting us!'))
        {
            window.external.AddFavorite('http://www.reliable.com','Reliable Office Supplies');
        }
    }
}