Help with additional domain fields validation

[stormy]

I need to do some very basic validation of additional domain fields (for .es domains). I think using jquery would work, but I'm not good enough of a coder to do it.

 

All I need to do is force lowercase and remove spaces and dashes, on every input text field.

 

There's another operation that would be handy, but I don't know if it's doable: "if field starts with a number and total length = 8, add a padding initial zero.

 

Any ideas or pointers will be much appreciated!