How to replace Strings in JavaScript ?

[smallufo]

Hello , I am using wicket 1.4.3
I wonder how to replace Strings in JavaScript ?

such as :

<form>
  <input type="button" value="Connect with Facebook"
    onclick="window.open('http://www.facebook.com/login.php?

 
api_key=278f76da30a86d0b5a2526a25c310166&display=popup&extern=1&fbconnect=1&req_perms=publish_stream&return_session=1&v=1.0&
        next=http%3A%2F%2Fwww.example.com
%2Fconnect%2Fsuccess.html&fb_connect=1&
        cancel_url=http%3A%2F%2Fwww.example.com%2Fconnect%2Fcancel.html',
    '_blank', 'top=442,width=480,height=460,resizable=yes', true)"  />
</form>

Is it possible to replace api_key , next , and cancel_url in this script ?

Thanks a lot .