Проверка.

<SCRIPT>
//This script background color
<script name="JavaScript"> 
  
function variables(){ 
  
t = 1; 
  
change = 1; 
  
empty1 = -1; 
  
empty2 = -1; 
  
empty3 = -1; 
  
empty4 = -1; 
  
empty5 = -1; 
  
empty6 = -1; 
  
empty7 = -1; 
  
empty8 = -1; 
  
empty9 = -1; 
  
return; 
  
whogoesnow = "Turn: Player 1" 
  
} 
  
function win(){ 
  
if (empty1==empty2 && empty2==empty3 && empty3==0 || 
  
empty4==empty5 && empty5==empty6 && empty6==0 || 
  
empty7==empty8 && empty8==empty9 && empty9==0 || 
  
empty1==empty4 && empty4==empty7 && empty7==0 || 
  
empty2==empty5 && empty5==empty8 && empty8==0 || 
  
empty3==empty6 && empty6==empty9 && empty9==0 || 
  
empty1==empty5 && empty5==empty9 && empty9==0 || 
  
empty3==empty5 && empty5==empty7 && empty7==0 ){ 
  
alert ("Player 1: YOU WON !!!"); 
  
history.go(0) 
  
} 
  
if (empty1==empty2 && empty2==empty3 && empty3==1 || 
  
empty4==empty5 && empty5==empty6 && empty6==1 || 
  
empty7==empty8 && empty8==empty9 && empty9==1 || 
  
empty1==empty4 && empty4==empty7 && empty7==1 || 
  
empty2==empty5 && empty5==empty8 && empty8==1 || 
  
empty3==empty6 && empty6==empty9 && empty9==1 || 
  
empty1==empty5 && empty5==empty9 && empty9==1 || 
  
empty3==empty5 && empty5==empty7 && empty7==1 ){ 
  
alert ("Player 2: YOU WON !!!"); 
  
history.go(0) 
  
} 
  
} 
  
function turnchange(t){ 
  
if (change == 1) { 
  
if (t == 0){ 
  
t = 1; 
  
whogoesnow = "Turn: Player " + 1 
  
} 
  
else { 
  
t = 0; 
  
whogoesnow = "Turn: Player " + 2 
  
} 
  
} 
  
else { 
  
t = t; 
  
} 
  
change = 1 
  
return (t); 
  
} 
  
function changing(clicked){ 
  
if (clicked == 1){ 
  
spot = empty1 ;} 
  
if (clicked == 2){ 
  
spot = empty2 ;} 
  
if (clicked == 3){ 
  
spot = empty3 ;} 
  
if (clicked == 4){ 
  
spot = empty4 ;} 
  
if (clicked == 5){ 
  
spot = empty5 ;} 
  
if (clicked == 6){ 
  
spot = empty6 ;} 
  
if (clicked == 7){ 
  
spot = empty7 ;} 
  
if (clicked == 8){ 
  
spot = empty8 ;} 
  
if (clicked == 9){ 
  
spot = empty9 ;} 
  
if (spot == -1){ 
  
if (t == 0){ 
  
xo = " O " ; 
  
spot = 0 
  
} 
  
else { 
  
xo = " X " ; 
  
spot = 1 
  
} 
  
if (clicked == 1){ 
  
empty1 = spot;} 
  
if (clicked == 2){ 
  
empty2 = spot ;} 
  
if (clicked == 3){ 
  
empty3 = spot ;} 
  
if (clicked == 4){ 
  
empty4 = spot ;} 
  
if (clicked == 5){ 
  
empty5 = spot ;} 
  
if (clicked == 6){ 
  
empty6 = spot ;} 
  
if (clicked == 7){ 
  
empty7 = spot ;} 
  
if (clicked == 8){ 
  
empty8 = spot ;} 
  
if (clicked == 9){ 
  
empty9 = spot ;} 
  
} 
  
else { 
  
if (spot == 0){ 
  
xo = " O ";} 
  
if (spot == 1){ 
  
xo = " X ";} 
  
change = 0 
  
} 
  
return (xo) ; 
  
} 
  
function change_b1(form){ 
  
clicked = 1; 
  
changing(clicked) ; 
  
t = turnchange(t) ; 
  
form.b1.value = xo; 
  
form.whoseturn.value = whogoesnow 
  
win(); 
  
return; 
  
} 
  
function change_b2(form){ 
  
clicked = 2; 
  
changing(clicked) ; 
  
form.b2.value = xo; 
  
t = turnchange(t) ; 
  
form.whoseturn.value = whogoesnow 
  
win(); 
  
return; 
  
} 
  
function change_b3(form){ 
  
clicked = 3; 
  
changing(clicked) ; 
  
form.b3.value = xo; 
  
t = turnchange(t) ; 
  
form.whoseturn.value = whogoesnow 
  
win(); 
  
return; 
  
} 
  
function change_b4(form){ 
  
clicked = 4; 
  
changing(clicked) ; 
  
form.b4.value = xo; 
  
t = turnchange(t) ; 
  
form.whoseturn.value = whogoesnow 
  
win(); 
  
return; 
  
} 
  
function change_b5(form){ 
  
clicked = 5; 
  
changing(clicked) ; 
  
form.b5.value = xo; 
  
t = turnchange(t) ; 
  
form.whoseturn.value = whogoesnow 
  
win(); 
  
return; 
} 
  
function change_b6(form){ 
  
clicked = 6; 
  
changing(clicked) ; 
  
form.b6.value = xo; 
  
t = turnchange(t) ; 
  
form.whoseturn.value = whogoesnow 
  
win(); 
  
return; 
  
} 
  
function change_b7(form){ 
clicked = 7; 
changing(clicked) ; 
form.b7.value = xo; 
 
t = turnchange(t) ; 
form.whoseturn.value = whogoesnow 
win(); 
return; 
} 
function change_b8(form){ 
  
clicked = 8; 
  
changing(clicked) ; 
  
form.b8.value = xo; 
  
t = turnchange(t) ; 
  
form.whoseturn.value = whogoesnow 
 
win(); 
  
return; 
  
} 
  
function change_b9(form){ 
  
clicked = 9; 
  
changing(clicked) ; 
  
form.b9.value = xo; 
  
t = turnchange(t) ; 
  
form.whoseturn.value = whogoesnow 
  
win(); 
  
return; 
  
} 
  
</script><script name="JavaScript"> 
  
variables(); 
  
</script></p> 
  
<h1 align="center"><font color="#0000FF">Крестики-нолики</font></h1> 
<form> 
<p align="center"><input type="button" name="whoseturn" 
value="Turn: Player 1"> <br> 
<br> 
</p> 
<div align="center"><center><table border="0"> 
<tr> 
<td><input type="button" name="b1" value=" " 
onclick="change_b1(this.form)"> </td> 
<td><input type="button" name="b2" value=" " 
onclick="change_b2(this.form)"> </td> 
 
<td><input type="button" name="b3" value=" " 
  
onclick="change_b3(this.form)"> </td> 
  
</tr> 
  
<tr> 
  
<td><input type="button" name="b4" value=" " 
  
onclick="change_b4(this.form)"> </td> 
  
<td><input type="button" name="b5" value=" " 
  
onclick="change_b5(this.form)"> </td> 
  
<td><input type="button" name="b6" value=" " 
  
onclick="change_b6(this.form)"> </td> 
  
</tr> 
  
<tr> 
  
<td><input type="button" name="b7" value=" " 
  
onclick="change_b7(this.form)"> </td> 
  
<td><input type="button" name="b8" value=" " 
  
onclick="change_b8(this.form)"> </td> 
  
<td><input type="button" name="b9" value=" " 
  
onclick="change_b9(this.form)"> </td> 
  
</tr> 
</table> 
</center></div><p align="center"><br> 
<input type="button" value="Новая игра" 
onclick="history.go(0)"> </p> 
</form> 

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</body>


</SCRIPT>