Originally Posted by Luckychap

The function should be like this :

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function CheckForCreditCard()
if document.getElementById("divCreditCardInfo").options3.selected == true)
{ 
var CreditCardInfo = document.getElementById("CreditCardInfo");
CreditCardInfo.style.visibility = "visible";
}

function CheckForCreditCard() if document.getElementById("divCreditCardInfo").options3.selected == true) { var CreditCardInfo = document.getElementById("CreditCardInfo"); CreditCardInfo.style.visibility = "visible"; }

You should first get a refrence for any document element before setting any properties. I.E done by:

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var CreditCardInfo = document.getElementById("CreditCardInfo");

var CreditCardInfo = document.getElementById("CreditCardInfo");