'Init Search box.'

def _initSearchBox(self, mainvbox):

    self._searchText = gtk.Entry()
    self._searchText.connect('activate', self.find_request_response)
    filterBtn = gtk.ToggleButton(label=_('_Filter    Options'))
    filterBtn.connect('toggled', self._showHideFilterBox)
    filterImg = gtk.Image()
    filterImg.set_from_stock(gtk.STOCK_FIND, gtk.ICON_SIZE_MENU)
    filterBtn.set_image(filterImg)
    close = gtk.Image()
    close.set_from_stock(gtk.STOCK_CLEAR, gtk.ICON_SIZE_MENU)
    clearBox = gtk.EventBox()
    clearBox.add(close)
    clearBox.connect('button-release-event', self._showAllRequestResponses)
    menuHbox = gtk.HBox()
    menuHbox.set_spacing(self._padding)
    menuHbox.pack_start(gtk.Label(_('Search:')), False)
    menuHbox.pack_start(self._searchText)
    menuHbox.pack_start(clearBox, False)
    menuHbox.pack_start(filterBtn, False)
    menuHbox.show_all()
    mainvbox.pack_start(menuHbox, False, True)
