goog.userAgent.picasa Namespace.HAS_PICASA {boolean}Whether we detect the user has Picasa installed.
.VERSION {string}The installed version of Picasa. If Picasa is detected, this means it is version 2 or later. The precise version number is not yet available to the browser, this is a placeholder for later versions of Picasa.
.isVersion(version)Whether the installed Picasa version is as new or newer than a given version. This is not yet relevant, we can't detect the true Picasa version number yet, but this may be possible in future Picasa releases.
version {string}
boolean}