Lucee Developer

If you want to check whether your visitor has the Cortona 3D viewer plugin installed in the browser, you can use the following javascript:

<script type="text/javascript">
    var cortonaPossible = isWin;// is the plugin available for this platform
    var cortonaInstalled = false;// is the plugin actually installed
    var cortonaChecked = false;// if 'cortonaPossible': did we do a check to find out if we have the plugin installed. This in case of new browsers which are not supported by this check

    var isIE  = !!(navigator.appVersion.indexOf("MSIE") != -1);
    var isWin = (navigator.appVersion.toLowerCase().indexOf("win") != -1) ? true : false;
    if (cortonaPossible)
    {
        cortonaChecked = true;
        if (navigator.plugins && navigator.plugins.length)
        {
            for (var i = 0; i < navigator.plugins.length; i++)
            {
                if (navigator.plugins[i].name.toLowerCase().indexOf('cortona3d') > -1)
                    cortonaInstalled = true;
            }
        // detect VRML and X3D plugins in Microsoft Internet Explorer, only with Windows
        // copied from http://cic.nist.gov/vrml/vbdetect.html
        } else if (navigator.appName == "Microsoft Internet Explorer" && isWin)
        {
            // IEDetectObject is used to detect ActiveX Controls
            document.writeln('<SCRIPT LANGUAGE="VBScript">');
            document.writeln('function IEDetectObject(activeXControlName)');
            document.writeln('    On Error Resume Next');
            document.writeln('    IEDetectObject = IsObject(CreateObject(activeXControlName))');
            document.writeln('End function');
            document.writeln('</SCR' + 'IPT>');
            if (IEDetectObject('Cortona.Control.1'))
                cortonaInstalled = true;
        } else
            cortonaChecked = false;
    }
</script>

After having included the script above in your web page, you can use the following script in the body of your website to yes/no display the Cortona 3D plugin:

<script type="text/javascript">
    if (cortonaInstalled) {
        document.write('<iframe src="cortona3d-page.html" width="100%" height="300" frameborder="0"></iframe>');
    } else if (cortonaPossible) {
        document.write('<div class="alert alert-warning">In order to show you 3D content, you will need to <a href="http://www.cortona3d.com/cortona3d-viewers" target="_blank">install the Cortona3D plugin</a>. Please click the <a href="http://www.cortona3d.com/cortona3d-viewers" target="_blank">Install link</a> to start installation.<br>After installation, please <a href="javascript:self.location.reload()">reload this page</a>.</div>');
    } else {
        document.write('<div class="alert alert-error">We probably cannot show you the 3D contents on this page, due to plugin incompatibilities. Maybe there <i>is<'+'/i> a compatible plugin; therefor please try to <a href="http://www.cortona3d.com/cortona3d-viewers" target="_blank">install the Cortona3D plugin</a>.<br>If installation succeeded, please <a href="javascript:self.location.reload()">reload this page</a>.</div>');
    }
</script>

Thanks to the source code of http://cic.nist.gov/vrml/vbdetect.html!