Check box

[popescuradhoo]

Hi,
I have a check box on frame 1 and a button to frame two. If I go to frame 2 them back to 1 , the check box is not checked any more (he returns to his initial value = unchecked).How can I make the check box remember his last value?
http://orasulcarei.com/check.fla my fla

Thanks.