Hi. I want to write these (ĝ, ĉ, ĵ, ĥ, ŭ, ĉ) accented letters when the user types (gx, cx, jx, ux, cx). when user types 'gx' for example i want to remove that x and replace it with the accent. how should i do that? and how should i specify which accent goes above which letter? thanks.