Scrolling Masked Mc with Dynamic Text inside

On this site (bottom right) are two text areas that scroll… firstly how did they manage to get the scrolling text so clean like “dynamic text” ? and secondly how did they get it to do the constant scroll effect (as in rollOver and it starts and goes all the way to the bottom)?

http://www.thepeoplesbureau.com/

the first bit i cant work out… because the text looks like dynamic text (arial), but the scrolling plain has buttons in… so that says to me its a MC that they’re scrolling… but how did they frame it? a mask? i thought you couldn’t mask dynamic text? or is it a pixel font? if it is a pixel font how can i do it with out a pixel font and with arial (dynamic text style)?

hope that all makes sense