Railo 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 isIE  = !!(navigator.appVersion.indexOf("MSIE") != -1);

    var isWin = (navigator.appVersion.toLowerCase().indexOf("win") != -1) ? true : false;
    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 whoch are not supported by this check
    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>

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