<html>
<head>
<title>
kippu no suuji de 10 wo tsukuru script
</title>
</head>
<body>
<script language = "JavaScript">

<!--

document.numbers.hyouji.value = "";

function k(a1,op,a2){ //keisan suru kansuu
if(op == 0) {return parseFloat(a1)+parseFloat(a2);}
if(op == 1) {return parseFloat(a1)-parseFloat(a2);}
if(op == 2) {return parseFloat(a1)*parseFloat(a2);}
if(op == 3 && a2 != 0) {return parseFloat(a1)/parseFloat(a2);}
return "err";
}

function check(a0, a1, a2, a3) {
opst = new Array();
opst[0] = "+";
opst[1] = "-";
opst[2] = "*";
opst[3] = "/";

for (o0 = 0; o0 < 4; o0++){
for(o1 = 0; o1 < 4; o1++){