I have an If-Else block to set the path depending on what language they choose, so it looks something like this:
tempPath = ""
if SiteId=1 then
'do nothing
elseif SiteId=2 then
tempPath = tempPath & "/UK"
elseif SiteId=3 then
tempPath = tempPath & "/FR"
elseif SiteId=4 then
tempPath = tempPath & "/GER"
end if
imgPath = tempPath & "/images"
editor.ImageGalleryPath = imgPath
So essentially, you end up with an ImageGalleryPath that looks something like "/UK/images"