<html>
<body>
<script language="JavaScript">
function ReadData()
{
var myForm = document.form1;
var num1, num2, sum;
num1 = parseFloat(myForm.number1.value);
num2 = parseFloat(myForm.number2.value);
alert("Form sum of " + num1 + " and " + num2 + " ??? ");
sum = num1 + num2;
document.write("sum is " + sum + "<br /><br />");
}
</script>
<form name=form1>
<p><h2><b>
Enter two numbers to sum then click Enter Data</b></h2>
<p><h1><b>
1st number</b></h1>
<INPUT TYPE = "text" VALUE = "000" NAME = "number1">
<p><h1><b>
2nd number</b></h1>
<INPUT TYPE = "text" VALUE = "000" NAME = number2>
<INPUT TYPE = "button" value = "Enter Data" onclick = "ReadData()">
</form>
</body>
</html>