Code: Select all
<html>
<head>
</head>
<body>
<script>
function calc(id,id2)
{
var name="t" + id;
var name2="t" + id2;
var b=document.getElementsByName(name).value;
var c=document.getElementsByName(name2).value;
b = b.replace(/[^0-9\.]+/g, "");
c = c.replace(/[^0-9\.]+/g, "");
var x = Number(b);
var y = Number(c);
var a = +x + y;
document.getElementsByName("t3").value = a;
}
</script>
<input type="text" name="t1">
<input type="text" name="t2">
<input type="text" name="t3" onclick="calc(1,2)">
</body>
</html>