// purchase.js

/*****************************************/
function checkForm()
{
   initChecks();

   checkPresent(document.payment.os0, "Your name");
   checkPresent(document.payment.os1, "Your email address");

   if (missingFields.length > 0)
   {
      finiChecks();
   } else {
      if (validateemail(document.payment.os1.value)==false)
      {
         alert("'Your email address' (" + document.payment.os1.value + ") is not a valid email address");
         document.payment.os1.focus();
         returnVal = false;
      }
   }
}

/*****************************************/
function checkUpgradeForm()
{
   initChecks();

   checkPresent(document.payment.os1, "Your email address");

   finiChecks();

}

/*****************************************/
function checkNSForm()
{
   initChecks();

   checkPresent(document.payment.os0, "Your name");
   checkPresent(document.payment.os1, "Your email address");
   checkPresent(document.payment.amount, "Amount");

   finiChecks();

}

/*****************************************/