Creating a customized keyboard

I have been trying to create a keyboard for a language to use on my website but i don’t seem to be getting it right.
Can someone help and create the script?
Language - Nigeria Odd Vowels (SIL) keyboard

Are you trying to add to your website the ability to use that keyboard?

Does keymanweb.com Support give you the information you need?

If not, please write again with more details. Thanks!