számológép

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">

<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Számológép</title>

<script alnguae="javascript">
function szamol () {
a = parseInt(document.matek.a.value)
b = parseInt(document.matek.b.value)
c = a+b
document.matek.c.value = c
console.log(c)
}
</script>

</head>

<body>
<form name="matek">
<input type="text" name="a"> + <input type="text" name="b"> = <input type="text" name="c"><br>
<input type="button" onclick="szamol ()" value="Szamol"
</form>

</body>

</html>