add:     if (event.target == document) { _installCountdown = 2; okButton.label = bundle.getFormattedString("installButtonDisabledLabel", [_installCountdown.toFixed(1)]); okButton.disabled = true; } 
context:   function myfocus() {    if (_installCountdownInterval == -1)      _installCountdownInterval = setInterval(okButtonCountdown, 100);  }
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/5d8f7afa5ca0371f31ec23f8b1401d1d16241d2e/xpinstallConfirm.js/buggy/toolkit/mozapps/xpinstall/content/xpinstallConfirm.js