Inno Setup Help

[Razor12911]

var
Img1, Img2: Longint;....

under initializewizard
Img1:=ImgLoad(WizardForm.Handle,ExpandConstant('{t mp}')+'\frame1.png',0,0,900,540,True,True);
Img2:=ImgLoad(WizardForm.Handle,ExpandConstant('{t mp}')+'\frame2.png',0,0,900,540,True,True);
....


under curpagechange
ImgSetVisibility(Img1, false);
ImgSetVisibility(Img2, false);
case CurPageID of
wpWelcome:
begin
ImgSetVisibility(Img1, true);
....
end;
wpSelectDir:
begin
ImgSetVisibility(Img2, true);
....
end;