Button help

[zzzxxx]

i have a button to load movie (i use load movie num) when u press on button, the button load movie still now ok.
but when u press on the button again it load movcie again,i don't want to load movie again when u press the button again.

how i can fix this?
and i need some help with actionscript i use flash cs3.

any help plz.

and thx for u r help. 23040

[panel]

You attached only html page...