Right Click and save as png from swf

Hi, I have a grid gallery script http://www.republicofcode.com/tutorials/flash/as3gridgallery/index.php that loads images from a folder in my case png files with transparacy, and this works fine, but I need to have a button or even better when I right click the exported sfw there should be an option to export the file to a single png file with transparacy. I just need the function to work locally on my computer so there is no need for serverside functions.

Could this be done?