Posible to resize the movie dynamicaly?

hi everyone!! i’m new around forst post!
well i got a little question, is it posible to resize the height of a movie dynamicaly ie through actionscript or by javascript?
i want to create a news block in flash and i would like the movie to be resized or the height to increase depending on the number of news posts. so if i add a new post the movie’s height is increase by some value so that the page looks bulky, i don’t want to make the site fully flash so i’m integrating flash & html & i realy need an answer for this one, else i would use a webblog in html
thx for the help