Global Variable Problem

I found the answer:

loadedArea = 'toontowncentral'

def updateTunnel(task):  # done
    global loadedArea
    global toontowncentral
    global SillySteet

    Actor = localAvatar

    x = localAvatar.getX()
    y = localAvatar.getY()

    # Toontown Central to DG
    if x >= 23.8046 and x <= 37.7877 and y <= -149.988 and y >= -158.263 and loadedArea == 'toontowncentral':
        toontowncentral.detachNode()
        loader.unloadModel('toontown.bam')
        sky.detachNode()
        loader.unloadModel('phase_3.5/models/props/TT_sky.bam')
        SillyStreet.reparentTo(render)
        Place = "Silly Street"
        onScreenDebug.add('Where', Place)
        Actor.setPosHpr(-94.7563, -101.525, -0.475, 90, 0, 0)

        loadedArea = 'SillyStreet'