tell application "System Events"
    set isRunning_Growl to (count of (every process whose name is "GrowlHelperApp")) > 0
    set isRunning_Google to (count of (every process whose name is "Google Notifier")) > 0
end tell

if isRunning_Google then
    tell application "GrowlHelperApp"
        set the allNotificationsList to {"Growl Toggler"}
        register as application "Growl Toggler" all notifications allNotificationsList default notifications allNotificationsList
        notify with name "Growl Toggler" title "Notifications OFF" description "" application name "Growl Toggler" icon of application "Automator"
    end tell
    delay (2)
    tell application "Google Notifier" to quit
    tell application "GrowlHelperApp" to quit
else
    tell application "Google Notifier" to launch
    tell application "GrowlHelperApp" to launch
    tell application "GrowlHelperApp"
        set the allNotificationsList to {"Growl Toggler"}
        register as application "Growl Toggler" all notifications allNotificationsList default notifications allNotificationsList
        notify with name "Growl Toggler" title "Notifications ON" description "" application name "Growl Toggler" icon of application "Automator"
    end tell
end if