function ValidateEmail(emailaddress)
{
  if (js12==true)
    return ValidateEmailJS12(emailaddress)
  else
    return ValidateEmailJS(emailaddress)
  return true;
}

function ValidateEmailJS(checkString)
{
  var newstr = "";
  var at = false;
  var dot = false;
  var dotpos = false;


  // IF EMAIL ADDRESS HAS A '@' CHARACTER
  if (checkString.indexOf("@") != -1) {
    at = true;
  // IF EMAIL ADDRESS HAS A '.' CHARACTER
  } else if (checkString.indexOf(".") != -1) {
    dot = true;
  }
  // IF EMAIL ADDRESS HAS A '.' AFTER a '@'
  if (checkString.lastIndexOf(".") > checkString.indexOf("@"))
  {
    dotpos = true;
  }

  // PARSE REMAINDER OF STRING
  for (var i = 0; i < checkString.length; i++) {
      ch = checkString.substring(i, i + 1)
      if ((ch >= "A" && ch <= "Z") || (ch >= "a" && ch <= "z")
              || (ch == "@") || (ch == ".") || (ch == "_")
              || (ch == "-") || (ch >= "0" && ch <= "9")) {
              newstr += ch;
              if (ch == "@") {
                  at=true;
              }
              if (ch == ".") {
                  dot=true;
              }
      }
  }
  if ((at == true) && (dot == true) && (dotpos == true) && (newstr == checkString)) 
  {
    return true;

  }
  else {
    return false;
  }
}