Help for making a zoom in/out button in interactive apn and tilt

hi is there any one who can help me out in making 2 button for zoom in and zoom out seperately in the interective image pan and tilt file which i ve taken from the link given below

http://flash.creatify.com/experiments/McSlider.html

if so see thread: http://www.kirupa.com/forum/showthread.php?t=227359

and the zoom level should increment or decrement till the mouse button is pressed on the image after choosing the zoom in or out button