this codes:
HTML Code:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<script type= "text/javascript">
function startCalc(){
interval = setInterval("calc()",1);
}
function calc(){
var qty = new Array(2);
qty[0] = parseFloat(document.myform.inqty.value);
qty[1] = parseFloat(document.myform.outqty.value);
myqtyval = qty[0]-qty[1];
document.myform.myqty.value = myqtyval;
}
function stopCalc(){
clearInterval(interval);
}
</script>
</head>
<body>
<form name='myform' action='test.php' method='post'>
Input<input type='text' name='inqty' onFocus='startCalc();' onBlur='stopCalc();' />
Output<input type='text' name='outqty' onFocus='startCalc();' onBlur='stopCalc();' /><br/>
myqty<input type='text' name='myqty' value='' />
<input type='submit' name='submit' value='save' />
</form>
</body>
</html>
has the concept of what i want that after i insert number in output the result was automatically appear in qty but the problem in this code it did not use on key enter and I don't know how can i put that code n my php file where I attach.
I'm sorry, i do understand the concept but I don't know how can I code it and where i can put the codes.
Thank you..