[thelist] JavaScript form validation - do all radio groups have a selection checked?

[Canfield, Joel]

Can you see why this does absolutely nothing? The alert at the beginning
of the function doesn't even happen, although if I remove everything
*except* the alert, it does.

In the form page:

  <script type="text/javascript" src="isValid.js"></script>

and later

  <form name="foodForm" method="POST" action="foodborne_answers.asp"
onSubmit="return isValid(this);">

and this for the JavaScript:

function isValid(form)
{
	alert("in the script")
	myWholeFormArray = document.theForm.elements
	for (a = 0; a < myArray.length; a++
	{
		myArray = document.theForm.elements[a];
		{
			if document.theForm.elements[a].type == "radio"
			myChecked = false;
			for (b = 0; b < myArray.length; b++)
			{
				if (myArray[b].checked)
				{
				myChecked = true;
				}
			}
		}
		if (myChecked == false)
		{
			alert("Please select an answer for " +
elements[a].name)
			for (b = 0; b < myArray.length; b++)
			{
				myArray[b].style.backgroundColor='red';
			}
			return false
		}
	}
	alert("out of the script")
return true
}

Thanks.

joel