function tryRedirectToSilverlight() {
    if (silverlightOk())
        navigateToPage("SilverlightPage.html");
}

function installationDenied() {
    return (0) ;
}

function installSilverlight() {
    navigateToPage("http://www.microsoft.com/silverlight/handlers/getsilverlight.ashx");
}

function silverlightOk() {
    //return 0;
    return (Silverlight.isInstalled('3.0') * Silverlight.isInstalled('4.0'));
}

function navigateToPage(PageUrl) {
    window.location.href = PageUrl;
}