Орел или режка

<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
function flipCoin() {
var x = parseInt(Math.random() * 2, 10);
coinsrc = (!x) ? "heads.gif" : "tails.gif";
document.coinform.coinbutton.value = 'Flipping';
ID = window.setTimeout("changeCoin();", 750);
}
function changeCoin() {
document['coin'].src = coinsrc;
document.coinform.coinbutton.value = 'Flip Coin';
}
// End -->
</script>

<center>
<form name=coinform>
<table border=0 height=200>
<tr valign=top>
<td><input type=button name=coinbutton value="Подкинуть" onClick="flipCoin();"></td>
<td><img name=coin src="heads.gif" width=190 height=190></td>
</tr>
</table>
</form>
</center>