Auto kalkulasjon



+

=

 

Scriptet puttes mellom HEAD-taggene:

<script type="text/javascript">
<!-- Begin
function startCalc(){
interval = setInterval("calc()",1);
}
function calc(){
one = document.autoSumForm.firstBox.value;
two = document.autoSumForm.secondBox.value;
document.autoSumForm.thirdBox.value = (one * 1) + (two * 1);
}
function stopCalc(){
clearInterval(interval);
}
// End -->
</script>

 

Formen setter du der du vil ha den:

<form name="autoSumForm">
<input type=text name="firstBox" value="" onFocus="startCalc();" onBlur="stopCalc();">
<br> + <br>
<input type=text name="secondBox" value="" onFocus="startCalc();" onBlur="stopCalc();">
<br> = <br>
<input type=text name="thirdBox">
</form>