> Anyone have a quick _javascript_ code top check if a certain radio
> button is selected then a input field must have content?
Here's a two minute solution:
<html>
<head>
<script language="_javascript_">
function checkForm()
{
var f = document.myForm;
for (var i = 0; i < f.paymentmethod.length; ++i)
{
if (f.paymentmethod[i].value == "cc")
{
if (f.paymentmethod[i].checked && f.ccNum.value
== "") //maybe replace with an RE
{
alert("Please fill in a credit card
number.");
return false;
}
return true;
}
}
return true;
}
</script>
</head>
<body>
<form name="myForm" checkForm()">
Purchase order: <input type="radio" name="paymentmethod"
value="po"/><br>
Credit card: <input type="radio" name="paymentmethod"
value="cc"/>
<input type="text" name="ccNum"/><br>
<input type="submit" value="Submit"/>
</form>
</body>
</html>
Christian
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