public string Serialize()
{
string xml = "";
if (litleToken != null) xml += "\r\n<litleToken>" + SecurityElement.Escape(litleToken) + "</litleToken>";
if (routingNum != null) xml += "\r\n<routingNum>" + SecurityElement.Escape(routingNum) + "</routingNum>";
if (accTypeSet) xml += "\r\n<accType>" + accTypeField + "</accType>";
if (checkNum != null) xml += "\r\n<checkNum>" + SecurityElement.Escape(checkNum) + "</checkNum>";
return xml;
}