how can i disable the message sent notification

[turk320ci]

I just got my phone today and it's perfect, the only annoying thign that i can't seem to disable is the little pop up notification that says "message sent" after every text i send, now i dont mind it as much as i mind the fact that it vibrates everytime it happens and if the phone is on loud it also makes a sound.. there are options to disable calls, texts, reminders, etc.. however, there's no option to disable the message sent notification.. please help.. thank you..