<html>
<head>
<title>Sum Maker</title>
<script type="text/javascript">
<!--
function addIt() {
var value1 = parseInt(document.getElementById("inputA").value); // <---
var value2 = parseInt(document.getElementById("inputB").value); // <---
document.getElementById("output").value = value1 + value2;
}
// -->
</script>
</head>
<body>
<form name="adder">
<input type="text" name="inputA" id="inputA" value="0" size="4" /><br />
<input type="text" name="inputB" id="inputB" value="0" size="4" />
<input type="button" value="Add" onclick="addIt()">
<p>____________</p>
<input type="text" name="output" id="output" size="6" />
</form>
</body>
</html>