need help! plz

dear all, I want to make a form-to-email page and I want to diplay a messagebox after the mail is send and then I want it to be redirected to another page. I used JS for the msgbox but the header function wont work in this case. please help me! here is the code ... mail( "m <bomber6man@yahoo.com>e@mysite.com", "Feedbacks",$message, "From: $email" ); echo "<script language=javascript>alert('Your message was sent successfully!');</script>"; header( 'Location: http://www.blah blah.com" ) ; ?> thank you Hooman