import pygtk
pygtk.require("2.0") # Minimaal versie 2
import gtk
import gtkmozembed
container = gtk.VBox()
moz = gtkmozembed.MozEmbed()
moz.load_url("http://www.google.nl")

def HideShow(widget):
        moz.hide_all()
        moz.show_all()

but = gtk.Button("hide__show")
but.connect("clicked", HideShow)
container.pack_start(but, False, False)
container.pack_start(moz)
win = gtk.Window()
win.add(container)
win.set_default_size(500, 400)
win.show_all()
gtk.main()