<script type="text/javascript">
function largest() {
var num1, num2;
num1 = Number(document.getElementById("N").value);
num2 = Number(document.getElementById("M").value);
if (num1 > num2) {
window.alert(num1 + "-is largest");
} else if (num2 > num1) {
window.alert(num2 + "-is largest");
}
</script>
