Integrate /adding js to video??

[riskmod]

Anyone have any idea how this was done?

http://www.crustydemons.co.uk/UK/tattoo_parlour/index.html

or this:

http://www.sonypictures.com/homevideo/stepbrothers/stepbrothersduel/feature.php?hs317=Stepbrothers+Duel

Basically you input your name and then it shows up in the video.

So looks most like JS embedded to the flash timeline but I wanted to know is there was a tutorial or somewhere how this would get built/started.

[infinityspiral]

This is all built inside flash. One layer plays the video, another tracks the image and the text across the screen- probably manually animated along a path to match up with the video. The text is a dynamic field that pulls in the string variable. The image is probably a movieclip or loader object.