Dynamically zoom in on a map

hey all, i have a campus map. i’m needing the user to be able to click a building and have the the map(which is a movie clip) ‘zoom in’ on that building…and then be able zoom out as well. i can set the _width/_height and _x/_y but it’s the actual ‘animated’ zooming i can’t figure out.

the map is in a scrollPane so it would be great if i could set a “target” x/y coordinate for the building to zoom to so that if the user happens to click on a building at the bottom of the scrollPane it goes where i want it and doesn’t just zoom of the page. make sense?