function strip(string, symbol)
{
	var newstring = "";

	for (var i = 0; i < string.length; i++) 
	{
		if (string.charAt(i) != symbol)	newstring += string.charAt(i);
	}
	return newstring;
}

function checkRequired()
{
	if (document.frmBalanceInquiry.CardNum.value == "")
	{
		alert("You must provide a gift card number");
		document.frmBalanceInquiry.CardNum.focus();
		document.location.href='#top';
		return false;
	}
	
	document.frmBalanceInquiry.CardNum.value = strip(document.frmBalanceInquiry.CardNum.value, "-")

	if (document.frmBalanceInquiry.CardNum.value.length != 19)
	{
		alert("You must provide a valid gift card number");
		document.frmBalanceInquiry.CardNum.focus();
		document.location.href='#top';
		return false;
	}
	/*
	if ((document.frmBalanceInquiry.PinNum.value =="") && (document.frmBalanceInquiry.pinrequired.value == "1"))
	{
		alert("You must provide a pin number");
		document.frmBalanceInquiry.PinNum.focus();
		document.location.href='#top';
		return false;
	}
	*/
}