jrstylle on "[Plugin: Contact Form 7] How to custom redirect page at contact form 7 using javascript?"

How to custom redirect page at contact form 7 using javascript?
I'm using this function.

function redirect() {
        var v = document.getElementsByClassName("wpcf7-select")
        if (v.options[v.selectedIndex].value =="options selected " ){
                window.location = 'http://www.dominion.com/thankyou';
        }
        else{
         	 	window.location = 'http://www.dominion.com/thankyou2';
        }
}

**additional configurations**

on_sent_ok: "redirect()";

what is the error?