<body bgcolor="#ffffff">
<p><script language="javascript" type="text/javascript">
<!--
function Calculate(){
var By
var Div
var a = document.calc_IN.data_A.value;
var b = document.calc_IN.data_B.value;
if(b == 0){
alert("0で割ることになります");
}else{
By = a*b;
Div = a/b;
document.calc_OUT.data_B.value=By;
document.calc_OUT.data_D.value=Div;
}
}
// -->
</script>
<body>
<FORM NAME="calc_IN">
<INPUT NAME="data_A" TYPE="text" SIZE=10>
<INPUT NAME="data_B" TYPE="text" SIZE=10>
<INPUT NAME="GO" TYPE="button" VALUE="計算開始" onClick="Calculate()">
</FORM>
<FORM NAME="calc_OUT">
かけ算：<INPUT NAME="data_B" TYPE="text" SIZE=10><BR>
割り算：<INPUT NAME="data_D" TYPE="text" SIZE=10><BR>
</FORM>
</p>
</body>