В приложении моя игра. Помогите разобраться, в ней есть несколько процедур. Процедура Меню объявлена самой последней. При выходе(или окончании) из игры нужно сделать выход в меню, а не в ОС. Также и при выходе из процедуры Instruct.

Приложение:
uses graph, crt;
const
d1000=1000;
d500=50;
var
grd,grm :integer;
s,l,d,x1,y1,x,y,dx,dy,m,h,p,a,e :integer;
j,o,m1,st,ma,am,os,pos,r,de :integer;
c :char;
ok,quit,instruction :boolean;

procedure key;
begin
if keypressed then c:=readkey;
if c=#0 then c:=readkey;
end;

procedure setupscreen;
begin
TextAttr:=(cyan*3)+darkgray;
ClrScr;
HighVideo;
end;
procedure igra;
var
a, ba, bo, bd, c, i, t, pilote, mode, size, ph, od, oh,
s1, s2, n: integer;
s: boolean;
palet, balle, blank: pointer;
r, paus: string;
begin
pilote:=detect;
initGraph(pilote,mode,'c:\tp7\bgi');
clearviewport;

size:=imagesize(50,50,60,60);
new(blank);
getmem(blank,size);
getimage(50,50,60,60,blank^);

setcolor(14);
rectangle(5,5,20,65);
setfillstyle(1,1);
floodfill(10,10,14);

size:=imagesize(4,3,21,67);
new(palet);
getmem(palet,size);
getimage(4,3,21,67,palet^);

setcolor(10);
circle(55,55,3);
setfillstyle(1,10);
floodfill(55,55,10);

size:=imagesize(50,50,60,60);
new(balle);
getmem(balle,size);
getimage(50,50,60,60,balle^);

clearviewport;

setcolor(5);
setbkcolor(0);
rectangle(1,478,638,479);
rectangle(1,20,638,21);

ba:=30;
bo:=random(200)+100;
bd:=3+6*random(2);

t:=0;
ph:=200;
oh:=400;
putimage(5,ph,palet^,normalput);
putimage(615,oh,palet^,normalput);

s1:=0;
s2:=0;
s:=true;
n:=6;

repeat
case bd of
1: begin ba:=ba-1-n div 4; bo:=bo+1+n div 4; end;
3: begin ba:=ba+1+n div 4; bo:=bo+1+n div 4; end;
7: begin ba:=ba-1-n div 4; bo:=bo-1-n div 4; end;
9: begin ba:=ba+1+n div 4; bo:=bo-1-n div 4; end;
end;

putimage(ba,bo,balle^,normalput);

if ba<5 then
begin
putimage(4,bo,blank^,normalput);
s2:=s2+1;
if s=true then
begin
sound(200);
delay(d1000);
nosound;
end;
ba:=590;
bo:=100+random(200);
bd:=1+6*random(2);
settextstyle(0,0,0);
setcolor(0);
str(s1,r);
outtextxy(305,5,r);
outtextxy(315,5,'-');
str((s2-1),r);
outtextxy(325,5,r);

setcolor(4);
str(s1,r);
outtextxy(305,5,r);
outtextxy(315,5,'-');
str(s2,r);
outtextxy(325,5,r);
if s2=5 then
begin
setcolor(4);
settextstyle(8,0,4);
outtextxy(270,200,'Game Over!!!');
outtextxy(130,240,'Press any key for exit!');
if s=true then
begin
for i:=1 to 3 do
begin
sound(200);
delay(d1000);
nosound;
delay(d500);
end;
sound(200);
delay(d1000);
nosound;
end;
repeat until keypressed;
halt;
end;
end;

if ba>625 then
begin
putimage(625,bo,blank^,normalput);
s1:=s1+1;
if s=true then
begin
sound(2000);
delay(d1000);
nosound;
end;
ba:=30;
bo:=random(200)+100;
bd:=3+6*random(2);
setcolor(0);
str((s1-1),r);
outtextxy(305,5,r);
outtextxy(315,5,'-');
str(s2,r);
outtextxy(325,5,r);

setcolor(4);
str(s1,r);
outtextxy(305,5,r);
outtextxy(315,5,'-');
str(s2,r);
outtextxy(325,5,r);
if s1=5 then
begin
setcolor(4);
settextstyle(8,0,4);
outtextxy(270,200,'Congratulations!!!');
outtextxy(130,240,'Press any key for exit!');
if s=true then
begin
for i:=1 to 3 do
begin
sound(2000);
delay(d1000);
nosound;
delay(d500);
end;
sound(2000);
delay(d1000);
nosound;
end;
repeat until keypressed;
halt;
end;

end;

if (n=1)or(n=4) then delay(20);
if (n=2)or(n=5) then delay(10);

if (ba<20)and(bo>ph)and(bo<ph+45) then
begin
ba:=27;
bd:=3+6*random(2);
end;
if (ba>616)and(bo>oh)and(bo<oh+45) then
begin
ba:=610;
bd:=1+6*random(2);
end;

c:=getpixel(ba+5,bo-2);
if (c=5)or(c=14)or(c=1) then
if bd=9 then bd:=3
else bd:=1;
c:=getpixel(ba+11,bo+5);
if (c=14)or(c=1) then
if bd=9 then bd:=7
else bd:=1;
c:=getpixel(ba-2,bo+5);
if (c=5)or(c=1) then
if bd=7 then bd:=9
else bd:=3;
c:=getpixel(ba+5,bo+12);
if (c=5)or(c=14)or(c=1) then
if bd=3 then bd:=9
else bd:=7;

{Joueu}
if keypressed then
t:=ord(readkey)-ord('0');
if (t=3)and(ph>22) then ph:=ph-1- n div 4;
if (t=1)and(ph<412) then ph:=ph+1+n div 4;
if t=ord('p')-ord('0') then
repeat
paus:='PAUSE';
setcolor(4);
settextstyle(8,0,2);
outtextxy(270,240,paus);
settextstyle(2,0,4);
outtextxy(200,290, 'Pravila igri: ');
outtextxy(200,320,'Dvigaya raketku, otbivat myach. ');
outtextxy(200,350,'Igra do 5 ochkov. Upravlenie: ');
outtextxy(200,380,'3-vverh, 2-stop, 1-vniz');
outtextxy(200,410,'P-pausa');
outtextxy(200,440,'Press O for continue!');
until keypressed;
if t=ord('o')-ord('0') then
repeat
paus:='PAUSE';
setcolor(0);
settextstyle(8,0,2);
outtextxy(270,240,paus);
settextstyle(2,0,4);
outtextxy(200,290, 'Pravila igri: ');
outtextxy(200,320,'Dvigaya raketku, otbivat myach. ');
outtextxy(200,350,'Igra do 5 ochkov. Upravlenie: ');
outtextxy(200,380,'3-vverh, 2-stop, 1-vniz');
outtextxy(200,410,'P-pausa');
outtextxy(200,440,'Press O for continue!');
break;
until keypressed;
if t=ord('s')-ord('0') then s:=(s=false);

putimage(5,ph,palet^, normalput);

if (bd=3)or(bd=9) then
begin
if (bd=3)and(ba>385) then if (oh>bo+(595-bo))and(oh>22) then oh:=oh-1-n div 4;
if (bd=3)and(ba>385) then if (oh<bo-30)and(oh<412) then oh:=oh+1+n div 4;
if (bd=9)and(ba>385) then if (oh>bo-(620-ba))and(oh>22) then oh:=oh-1-n div 4;
if (bd=9)and(ba>385) then if (oh<bo-(620-ba))and(oh<412) then oh:=oh+1+n div 4;

end;
putimage(615,oh,palet^, normalput);

until t=ord('q')-ord('0');
closegraph;

dispose(palet);
dispose(balle);
dispose(blank);
end;
procedure instruct;
begin
keypressed;
repeat
settextstyle(2,0,8);
textcolor(4);
outtextxy(100,110,'!!! PING PONG !!!');
outtextxy(100,140, 'Pravila igri: ');
outtextxy(100,170,'Dvigaya raketku, otbivat myach. ');
outtextxy(100,200,'Igra do 5 ochkov. Upravlenie: ');
outtextxy(100,230,'3-vverh, 2-stop, 1-vniz');
outtextxy(100,260,'P-pausa');
outtextxy(100,290,'YDASCHI DRUSIJA');
outtextxy(120,350,'Press ENTER for begin!');
until keypressed;
clearviewport;
end;
procedure menu;
var
x,y,i,j :integer;
s :string;
men :boolean;
begin
x:=120;
y:=120;
j:=1;
setcolor(2);
settextstyle(1,0,3);
setfillstyle(8,11);
bar(x,y,x+370,y+220);
setfillstyle(1,red);
bar(x+100,y+35,x+250,y+70);
outtextxy(x+120,y+38,'Play Ping-Pong');
setfillstyle(1,1);
bar(x+100,y+95,x+250,y+130);
outtextxy(x+151,y+98,'Info');
setfillstyle(1,1);
bar(x+100,y+155,x+250,y+190);
outtextxy(x+155,y+158,'Exit');
repeat
if c=#80 then j:=j+1;
if c=#72 then j:=j-1;
if (c=#80) and (j=2) then
begin
setfillstyle(1,1);
bar(x+100,y+35,x+250,y+70);
outtextxy(x+120,y+38,'Play Ping-Pong');
setfillstyle(1,red);
bar(x+100,y+95,x+250,y+130);
outtextxy(x+151,y+98,'Info');
setfillstyle(1,1);
bar(x+100,y+155,x+250,y+190);
outtextxy(x+155,y+158,'Exit');
end;
if (c=#80) and (j=3) then
begin
setfillstyle(1,1);
bar(x+100,y+35,x+250,y+70);
outtextxy(x+120,y+38,'Play Ping-Pong');
setfillstyle(1,1);
bar(x+100,y+95,x+250,y+130);
outtextxy(x+151,y+98,'Info');
setfillstyle(1,red);
bar(x+100,y+155,x+250,y+190);
outtextxy(x+155,y+158,'Exit');
end;

if (c=#72) and (j=1) then
begin
setfillstyle(1,red);
bar(x+100,y+35,x+250,y+70);
outtextxy(x+120,y+38,'Play Ping-Pong');
setfillstyle(1,1);
bar(x+100,y+95,x+250,y+130);
outtextxy(x+151,y+98,'Info');
setfillstyle(1,1);
bar(x+100,y+155,x+250,y+190);
outtextxy(x+155,y+158,'Exit');
end;
if (c=#72) and (j=2) then
begin
setfillstyle(1,1);
bar(x+100,y+35,x+250,y+70);
outtextxy(x+120,y+38,'Play Ping-Pong');
setfillstyle(1,red);
bar(x+100,y+95,x+250,y+130);
outtextxy(x+151,y+98,'Info');
setfillstyle(1,1);
bar(x+100,y+155,x+250,y+190);
outtextxy(x+155,y+158,'Exit');
end;
if j<=1 then j:=1;
if j>=3 then j:=3;
If (c=#13) and (j=1)then
begin
clearviewport;
igra;
menu;
end;
if (c=#13) and (j=2) then
begin
clearviewport;
instruct;
igra;
end;
if (c=#13) and (j=3) then quit:=true;
c:='_';
key;
ok:=(c=#27);
until quit ;
end;

procedure exit;
begin
setcolor(1);
settextstyle(2,0,8);
outtextxy(100,110,'Igru sozdal student MATI');
outtextxy(100,140,'Sergey Tyan. 3Cay-169');
outtextxy(100,170,'Versia 1.1');
outtextxy(100,200,'GOOD LUCK! ;-)');
repeat
if (c=#13) then
begin
menu;
end;
until keypressed;
end;
{--------------------------------------------------------------------------------}
begin
grd:=detect;
initgraph(grd,grm,'bgi'); setupscreen;
repeat
quit:=false;
setRGBpalette(7,1,30,20);
menu;
setfillstyle(0,0);
clearviewport;
exit;

until quit;
closegraph;
end.