Actionscript image selection

Requirement - Animated masks trigged by mouse-over movements to partially reveal strips of images; external image source; flexible number of images/masks, set by external xml; flexible mouse-out/mouseover size/position of images, set by external xml; select image to launch secondary movieclip; click secondary movieclip to return to image strips - Unscripted fla mock-up will be provided as reference - Code only; no graphic design work - Experienced in actionscript; Not for those working mostly on graphics and timeline animation - Sourcecode rights fully assigned to us