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onload make random number for each text field

Posted on 2010-11-18
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Last Modified: 2012-05-10
Can someone tell me why this does not work, looks like it would to me!


<html>
<head>
<script type="text/javascript">
function rnd(max) {
  var rndnum = max * Math.random();
  rndnum = Math.ceil(rndnum);
  return rndnum;
  } 
function start() {
var a = rnd;
var els = document.getElementsByClassName('Numbers');
for (i=0; i < els.length; i++){
  a = document.f1.t[i].value;
  }} 
</script>
</head>
<body onload="start();">
<form action="#" name=f1 >
<input type="text" name="t1" class="Numbers" value=""><br>
<input type="text" name="t2" class="Numbers" value=""><br>
<input type="text" name="t3" class="Numbers" value=""><br>
</form>
</body>
</html>

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Question by:johnh619
  • 2
4 Comments
 
LVL 83

Accepted Solution

by:
leakim971 earned 200 total points
ID: 34169378
Please note getElementsByClassName is not available on MS Internet Explorer

Else :


replace :
a = document.f1.t[i].value;

by :
els[i].value = a(10);

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Expert Comment

by:HonorGod
ID: 34169395
http://javascript.about.com/library/bldom08.htm

... Unfortunately there is no such method as document.getElementsByClassName so we can't grab a collection of all of the tags that share a class that way, we'll have to find another way to do it.

Read that page for defining a getElementsByClassName function .
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Author Comment

by:johnh619
ID: 34169643
HonorGod; I looked at the article but it must be wrong since I am using this method and after making the change that leakim971 suggested my code is now working perfectly.
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Author Closing Comment

by:johnh619
ID: 34169654
I received the requested help promptly and the new code works perfectly.
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