[thelist] Javascript - Form value undefined

[Ken Schaefer]

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
From: "Tim Burgan" <burgan at iprimus.com.au>
Subject: [thelist] Javascript - Form value undefined


: I'm doing a basic JavaScript course at the moment -
: I'm trying to use logical operators at the moment, but 
: I've got stuck right at the beginning with
: submitting a value from a form into JavaScript.
: 
: I've stripped the page down to 2 forms that are identical 
: except from the data input methods - 1 works (text inputs), 
: 1 doesn't (radio inputs).
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


This should get you started:

<script type="text/javascript">
 function theValue() {
  for (i = 0;  i < form1.inputSugar.length;  i++)
  {
  if (form1.inputSugar[i].checked)
   return(form1.inputSugar[i].value)
  }
 }

</script>

<form name="form1">

 <input type="radio" name="inputSugar" value="1"> 1<br>
 <input type="radio" name="inputSugar" value="2"> 2<br>
 <input type="button" value="click" onclick="alert(theValue());">

</form>