"As an alternative to server-side sniffing, you can use the CFInstall.js script to detect GCF and prompt users to install the plug-in without restarting their b

"As an alternative to server-side sniffing, you can use the CFInstall.js script to detect GCF and prompt users to install the plug-in without restarting their browsers" http://www.chromium.org/developers/how-tos/chrome-frame-getting-started#TOC-Detecting-Google-Chrome-Frame-and-P http://www.chromium.org/developers/how-tos/chrome-frame-gett...