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Simple Calculation?

Posted on 2001-06-22
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Last Modified: 2010-04-07
How can I have say 10 fields on my web page in which the user inputs some numbers and then a field at the bottom adds them all together?

So simple???!?!?
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Question by:JGWY
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2 Comments
 
LVL 7

Accepted Solution

by:
daniel_c earned 50 total points
ID: 6219098
Is this what you want? Just a simple example:

<html>
<head>
<script language=Javascript>
     function addValue(sVal)
     {
          var iTotal;
          if (!isNaN(sVal)) {
               iTotal = parseInt(document.form1.txtTotal.value);
               iTotal += parseInt(sVal);                    
          }
          else {
               iTotal = parseInt(document.form1.txtTotal.value);
          }
          document.form1.txtTotal.value = iTotal;
          //alert(document.form1.txtTotal.value);
     }
</script>
</head>
<body>
<form name=form1>
Number 01: <input type=text name=txtNumber01 size=3 maxlength=3 onBlur="addValue(this.value)" value="0"><br>
Number 02: <input type=text name=txtNumber02 size=3 maxlength=3 onBlur="addValue(this.value)" value="0"><br>
Number 03: <input type=text name=txtNumber03 size=3 maxlength=3 onBlur="addValue(this.value)" value="0"><br>
Number 04: <input type=text name=txtNumber04 size=3 maxlength=3 onBlur="addValue(this.value)" value="0"><br>
Number 05: <input type=text name=txtNumber05 size=3 maxlength=3 onBlur="addValue(this.value)" value="0"><br>
Number 06: <input type=text name=txtNumber06 size=3 maxlength=3 onBlur="addValue(this.value)" value="0"><br>
Number 07: <input type=text name=txtNumber07 size=3 maxlength=3 onBlur="addValue(this.value)" value="0"><br>
Number 08: <input type=text name=txtNumber08 size=3 maxlength=3 onBlur="addValue(this.value)" value="0"><br>
Number 09: <input type=text name=txtNumber09 size=3 maxlength=3 onBlur="addValue(this.value)" value="0"><br>
Number 10: <input type=text name=txtNumber10 size=3 maxlength=3 onBlur="addValue(this.value)" value="0"><br>
<hr size=1>
Total    : <input type=text name=txtTotal size=3 maxlength=3 value="0">
</form>
</body>
</html>


Hope this helps!

^_^
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Author Comment

by:JGWY
ID: 6219385
Spot on, may come back to you for variations on this if I need to. Cheers
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