Javascript - autosubmiting a form

Draco · 01-09-2004 05:35PM #1

I'm doing up a little quiz thing and I need it to auto submit after a fixed time. I've been bashing my head away at this for a few hours and I can't get it to work. What I've read up on from googled results implies the following code will work, but it fails with a 'Error: document.forms.class_test.submit is not a function' error. I've tried calling it with document.class_test.submit(), document.forms[0].submit() all with the same result. I have only a basic understanding of javascript so it's probably something simple.

Any pointers?

<html>
<head>
<script language="JavaScript">
var i = 0;
function setLength(len)
{
  i = len;
}

function countDown()
{
if(i > 0)
{
  i = i-1;
  window.status = i;
  var c = window.setTimeout("countDown()", 1000);
}
else
{
  alert('about to try and submit');
  document.forms.class_test.submit();
}
}

function startup(len) {
   setLength(len);
   countDown();
}
</script>
</head>
<body onload="startup(5)">

<form name="class_test" action="class_test.php?module_id=26" method="post">
This is a question<br>
<input type ="radio" name ="answer" value ="0"> Wrong answer<br>
<input type ="radio" name ="answer" value ="1"> Right answer<br>
<input type="submit" name="submit" value="Submit">
</form>
</body>
</head>

oneweb · 01-09-2004 05:45PM

change
document.forms.class_test.submit();
to
document.class_test.submit.click();

alternatively, rename the submit button and use
document.class_test.submit();

Spocker · 01-09-2004 05:50PM

Good man oneweb, just before me.

It's because the submit button has the name "submit" - change it to something else and it works OK.

Draco · 02-09-2004 09:08AM

Perfect! thanks.

Javascript - autosubmiting a form

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