Bookmarklet to display the current URL as a QR-code in a separate popup window (so as to not replace your current window)

url-to-qr-code-bookmarklet.js

javascript:void(
    (
        function() {
            var orig=location.href;
            var url='http://chart.apis.google.com/chart?cht=qr&chs=300x250&chl='+encodeURIComponent(orig);
            window.open(url,"_blank","width=320,height=270,resizable=yes,status=yes")
        }
    )()
)