Reset SWF

Hi

I use AS3

I am loading external swfs into the main stage

each swf contains a series of images

the navigation is linear

so when i hit the next button i go through the swfs images until a reach the next swf and so forth…

however when i have played all the swfs and go for a second round

then i see the last viewed picture of the for instance the first external swf

i also see the last viewed picture of the second external swf

how do i reset these externals swfs so i see the first picture when i go for the second round?

Thank you and kind regards