change the 'wait' after submitting

Ive change the contact form just like i want to have it. changed it with custom css and the style itself, translated the thank you after sending and name to a diffrent language in the style.

but there is one thing i cant find in the style and that is the ‘Wait…’
that appears in the submit box after submitting.

help would be appreciated 🙂
awesome and simple plugin btw!

http://wordpress.org/extend/plugins/simple-contact-form-revisited-plugin/