Where can i get this "CLICK TO CALL" code?

Hi Please see this site at the top header there's a text called "CLICK TO CALL" when u click that text you will have a popup and there u can enter the number to contact the respective company members.Where can i get this script ? Please help me.please help me .

This is the web site for reference :

CLICK HERE (http://www.columbuscriminaldefensefirm.com/)

This is the screen shot :

http://i50.tinypic.com/25rj96r.jpg

Any help plz?

hi zoe20 I found 2 sites with that script, maybe it can help you.

http://www.twilio.com/docs/howto/click-to-call
http://www.simpleclicktocall.com.au/installation

good luck