// common.js

//=======================================================
     //detect browser settings for showing and hiding DIVs
     _isNS4 = (document.layers) ? true : false;
     _isIE4 = (document.all && !document.getElementById) ? true : false;
     _isIE5 = (document.all && document.getElementById) ? true : false;
     _isNS6 = (!document.all && document.getElementById) ? true : false;
//=======================================================



var digits = "0123456789";
var lowercaseLetters = "abcdefghijklmnopqrstuvwxyz";
var uppercaseLetters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
var whitespace = " \t\n\r";
var decimalPointDelimiter = ".";
var phoneNumberDelimiters = "()- ";
var validUSPhoneChars = digits + phoneNumberDelimiters;
var validWorldPhoneChars = digits + phoneNumberDelimiters + "+";
var SSNDelimiters = "- ";
var validSSNChars = digits + SSNDelimiters;
var digitsInSocialSecurityNumber = 9;
var digitsInUSPhoneNumber = 10;
var ZIPCodeDelimiters = "-";
var ZIPCodeDelimeter = "-";
var validZIPCodeChars = digits + ZIPCodeDelimiters;
var digitsInZIPCode1 = 5;
var digitsInZIPCode2 = 9;
var creditCardDelimiters = " ";
var mPrefix = "You did not enter a value into the ";
var mSuffix = " field. This is a required field. Please enter it now.";
var sUSLastName = "Last Name";
var sUSFirstName = "First Name";
var sWorldLastName = "Family Name";
var sWorldFirstName = "Given Name";
var sTitle = "Title";
var sCompanyName = "Company Name";
var sUSAddress = "Street Address";
var sWorldAddress = "Address";
var sCity = "City";
var sStateCode = "State Code";
var sWorldState = "State, Province, or Prefecture";
var sCountry = "Country";
var sZIPCode = "ZIP Code";
var sWorldPostalCode = "Postal Code";
var sPhone = "Phone Number";
var sFax = "Fax Number";
var sDateOfBirth = "Date of Birth";
var sExpirationDate = "Expiration Date";
var sEmail = "Email";
var sSSN = "Social Security Number";
var sCreditCardNumber = "Credit Card Number";
var sOtherInfo = "Other Information";
var iStateCode = "This field must be a valid two character U.S. state abbreviation (like CA for California). Please reenter it now.";
var iZIPCode = "This field must be a 5 or 9 digit U.S. ZIP Code (like 94043). Please reenter it now.";
var iUSPhone = "This field must be a 10 digit U.S. phone number (like 415 555 1212). Please reenter it now.";
var iWorldPhone = "This field must be a valid international phone number. Please reenter it now.";
var iSSN = "This field must be a 9 digit U.S. social security number (like 123 45 6789). Please reenter it now.";
var iEmail = "This field must be a valid email address (like foo@bar.com). Please reenter it now.";
var iCreditCardPrefix = "This is not a valid ";
var iCreditCardSuffix = " credit card number. (Click the link on this form to see a list of sample numbers.) Please reenter it now.";
var iDay = "This field must be a day number between 1 and 31.  Please reenter it now.";
var iMonth = "This field must be a month number between 1 and 12.  Please reenter it now.";
var iYear = "This field must be a 2 or 4 digit year number.  Please reenter it now.";
var iDatePrefix = "The Day, Month, and Year for ";
var iDateSuffix = " do not form a valid date.  Please reenter them now.";
var pEntryPrompt = "Please enter a ";
var pStateCode = "2 character code (like CA).";
var pZIPCode = "5 or 9 digit U.S. ZIP Code (like 94043).";
var pUSPhone = "10 digit U.S. phone number (like 415 555 1212).";
var pWorldPhone = "international phone number.";
var pSSN = "9 digit U.S. social security number (like 123 45 6789).";
var pEmail = "valid email address (like foo@bar.com).";
var pCreditCard = "valid credit card number.";
var pDay = "day number between 1 and 31.";
var pMonth = "month number between 1 and 12.";
var pYear = "2 or 4 digit year number.";
var defaultEmptyOK = false;

function makeArray(n) {
   for (var i = 1; i <= n; i++) {
      this[i] = 0;
   } 
   return this;
}

var daysInMonth = makeArray(12);
daysInMonth[1] = 31;
daysInMonth[2] = 29;   // must programmatically check this
daysInMonth[3] = 31;
daysInMonth[4] = 30;
daysInMonth[5] = 31;
daysInMonth[6] = 30;
daysInMonth[7] = 31;
daysInMonth[8] = 31;
daysInMonth[9] = 30;
daysInMonth[10] = 31;
daysInMonth[11] = 30;
daysInMonth[12] = 31;

var USStateCodeDelimiter = "|";
var USStateCodes = "AL|AK|AS|AZ|AR|CA|CO|CT|DE|DC|FM|FL|GA|GU|HI|ID|IL|IN|IA|KS|KY|LA|ME|MH|MD|MA|MI|MN|MS|MO|MT|NE|NV|NH|NJ|NM|NY|NC|ND|MP|OH|OK|OR|PW|PA|PR|RI|SC|SD|TN|TX|UT|VT|VI|VA|WA|WV|WI|WY|AE|AA|AE|AE|AP";

function isEmpty(s)
{   return ((s === null) || (s.length === 0));
}
function isWhitespace (s)
{   var i;
    if (isEmpty(s)){ return true;}
    for (i = 0; i < s.length; i++)
    {   
        var c = s.charAt(i);
        if (whitespace.indexOf(c) == -1) {return false;}
    }
    return true;
}
function stripCharsInBag (s, bag)
{   var i;
    var returnString = "";
    for (i = 0; i < s.length; i++)
    {   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) {returnString += c;}
    }
    return returnString;
}
function stripCharsNotInBag (s, bag)
{   var i;
    var returnString = "";
    for (i = 0; i < s.length; i++)
    {   
        var c = s.charAt(i);
        if (bag.indexOf(c) != -1) {returnString += c;}
    }
    return returnString;
}
function stripWhitespace (s)
{   return stripCharsInBag (s, whitespace);
}
function charInString (c, s)
{   for (i = 0; i < s.length; i++)
    {   if (s.charAt(i) == c) {return true;}
    }
    return false;
}
function stripInitialWhitespace (s)
{   var i = 0;
    while ((i < s.length) && charInString (s.charAt(i), whitespace)){
       i++;}
    return s.substring (i, s.length);
}
function isLetter (c)
{   return ( ((c >= "a") && (c <= "z")) || ((c >= "A") && (c <= "Z")) );
}
function isDigit (c)
{   return ((c >= "0") && (c <= "9"));
}
function isLetterOrDigit (c)
{   return (isLetter(c) || isDigit(c));
}
function isInteger (s)
{   var i;
    if (isEmpty(s)){
       if (isInteger.arguments.length === 1) {return defaultEmptyOK;}
       else {return (isInteger.arguments[1] === true);}}
    for (i = 0; i < s.length; i++)
    {   
        var c = s.charAt(i);
        if (!isDigit(c)) {return false;}
    }
    return true;
}
function isSignedInteger (s)
{   if (isEmpty(s)) {
       if (isSignedInteger.arguments.length === 1){ return defaultEmptyOK;}
       else {return (isSignedInteger.arguments[1] === true);}}
    else {
        var startPos = 0;
        var secondArg = defaultEmptyOK;
        if (isSignedInteger.arguments.length > 1){
            secondArg = isSignedInteger.arguments[1];}
        if ( (s.charAt(0) == "-") || (s.charAt(0) == "+") ){
           startPos = 1;    }
        return (isInteger(s.substring(startPos, s.length), secondArg));
    }
}
function isPositiveInteger (s)
{   var secondArg = defaultEmptyOK;
    if (isPositiveInteger.arguments.length > 1){
        secondArg = isPositiveInteger.arguments[1];}
    return (isSignedInteger(s, secondArg) && ( (isEmpty(s) && secondArg)  || (parseInt (s) > 0) ) );
}
function isNonnegativeInteger (s)
{   var secondArg = defaultEmptyOK;
    if (isNonnegativeInteger.arguments.length > 1){
        secondArg = isNonnegativeInteger.arguments[1];}
    return (isSignedInteger(s, secondArg) && ( (isEmpty(s) && secondArg)  || (parseInt (s) >= 0) ) );
}
function isNegativeInteger (s)
{   var secondArg = defaultEmptyOK;
    if (isNegativeInteger.arguments.length > 1){
        secondArg = isNegativeInteger.arguments[1];}
    return (isSignedInteger(s, secondArg) && ( (isEmpty(s) && secondArg)  || (parseInt (s) < 0) ) );
}
function isNonpositiveInteger (s)
{   var secondArg = defaultEmptyOK;
    if (isNonpositiveInteger.arguments.length > 1){
        secondArg = isNonpositiveInteger.arguments[1];}
    return (isSignedInteger(s, secondArg) && ( (isEmpty(s) && secondArg)  || (parseInt (s) <= 0) ) );
}
function isFloat (s)
{   var i;
    var seenDecimalPoint = false;
    if (isEmpty(s)) {
       if (isFloat.arguments.length === 1) {return defaultEmptyOK;}
       else {return (isFloat.arguments[1] === true);}}
    if (s == decimalPointDelimiter) {return false;}
    for (i = 0; i < s.length; i++)
    {   
        var c = s.charAt(i);
        if ((c == decimalPointDelimiter) && !seenDecimalPoint){seenDecimalPoint = true;}
        else if (!isDigit(c)) {return false;}
    }
    return true;
}
function isSignedFloat (s)
{   if (isEmpty(s)) {
       if (isSignedFloat.arguments.length === 1){return defaultEmptyOK;}
       else {return (isSignedFloat.arguments[1] === true);}}
    else {
        var startPos = 0;
        var secondArg = defaultEmptyOK;
        if (isSignedFloat.arguments.length > 1){
            secondArg = isSignedFloat.arguments[1];}
        if ( (s.charAt(0) == "-") || (s.charAt(0) == "+") ){
           startPos = 1;}    
        return (isFloat(s.substring(startPos, s.length), secondArg));
    }
}
function isAlphabetic (s)
{   var i;
    if (isEmpty(s)){ 
       if (isAlphabetic.arguments.length === 1) {return defaultEmptyOK;}
       else {return (isAlphabetic.arguments[1] === true);}}
    for (i = 0; i < s.length; i++)
    {   
        var c = s.charAt(i);
        if (!isLetter(c)){
        return false;}
    }
    return true;
}
function isAlphanumeric (s)
{   var i;
    if (isEmpty(s)) {
       if (isAlphanumeric.arguments.length === 1) {return defaultEmptyOK;}
       else {return (isAlphanumeric.arguments[1] === true);}}
    for (i = 0; i < s.length; i++)
    {   
        var c = s.charAt(i);
        if (! (isLetter(c) || isDigit(c) ) ){
        return false;}
    }
    return true;
}
function reformat (s)
{   var arg;
    var sPos = 0;
    var resultString = "";
    for (var i = 1; i < reformat.arguments.length; i++) {
       arg = reformat.arguments[i];
       if (i % 2 === 1){ resultString += arg;}
       else {
           resultString += s.substring(sPos, sPos + arg);
           sPos += arg;
       }
    }
    return resultString;
}
function isSSN (s)
{   if (isEmpty(s)){
       if (isSSN.arguments.length === 1) {return defaultEmptyOK;}
       else {return (isSSN.arguments[1] === true);}}
    return (isInteger(s) && s.length == digitsInSocialSecurityNumber);
}
function isUSPhoneNumber (s)
{   if (isEmpty(s)) {
       if (isUSPhoneNumber.arguments.length === 1) {return defaultEmptyOK;}
       else {return (isUSPhoneNumber.arguments[1] === true);}}
    return (isInteger(s) && s.length == digitsInUSPhoneNumber);
}
function isInternationalPhoneNumber (s)
{   if (isEmpty(s)){
       if (isInternationalPhoneNumber.arguments.length === 1) {return defaultEmptyOK;}
       else {return (isInternationalPhoneNumber.arguments[1] === true);}}
    return (isPositiveInteger(s));
}
function isZIPCode (s)
{  if (isEmpty(s)){
       if (isZIPCode.arguments.length === 1) {return defaultEmptyOK;}
       else {return (isZIPCode.arguments[1] === true);}}
   return (isInteger(s) && 
            ((s.length == digitsInZIPCode1) ||
             (s.length == digitsInZIPCode2)));
}
function isStateCode(s)
{   if (isEmpty(s)){
       if (isStateCode.arguments.length === 1) {return defaultEmptyOK;}
       else {return (isStateCode.arguments[1] === true);}}
    return ( (USStateCodes.indexOf(s) != -1) && (s.indexOf(USStateCodeDelimiter) == -1) );
}
function isEmail (s)
{   if (isEmpty(s)){
       if (isEmail.arguments.length === 1) {return defaultEmptyOK;}
       else {return (isEmail.arguments[1] === true);}}
    if (isWhitespace(s)){ return false;}
    var i = 1;
    var sLength = s.length;
    while ((i < sLength) && (s.charAt(i) != "@"))
    { i++;
    }
    if ((i >= sLength) || (s.charAt(i) != "@")){ return false;}
    else {i += 2;}
    while ((i < sLength) && (s.charAt(i) != "."))
    { i++;
    }
    if ((i >= sLength - 1) || (s.charAt(i) != ".")) {return false;}
    else {return true;}
}
/**
 * Author: Andres Rangel
 * date: 09/18/2009
 * @param email
 * @return
 */
function validateEmail(email) {
	   var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9\-\.])+\.([A-Za-z]{2,4})$/;
	   var rd =email.indexOf('@'); 
	   if(reg.test(email) === false) {
		  return false;
	   }
	   else if(rd>63) {return false; }
	   var domain = email.substring(rd+1).toLowerCase();
	   var regDomain = /^([a-z0-9])+((\.|\-)([a-z0-9])+)*\.([a-z0-9])+$/;
	   return (regDomain.test(domain));
	}

function isYear (s)
{   if (isEmpty(s)){ 
       if (isYear.arguments.length === 1){ return defaultEmptyOK;}
       else {return (isYear.arguments[1] === true);}}
    if (!isNonnegativeInteger(s)) {return false;}
    return ((s.length == 2) || (s.length === 4));
}
function isIntegerInRange (s, a, b)
{   if (isEmpty(s)){
       if (isIntegerInRange.arguments.length === 1) {return defaultEmptyOK;}
       else {return (isIntegerInRange.arguments[1] === true);}}
    if (!isInteger(s, false)){return false;}
    var num = parseInt (s);
    return ((num >= a) && (num <= b));
}
function isMonth (s)
{   if (isEmpty(s)){
       if (isMonth.arguments.length === 1){return defaultEmptyOK;}
       else {return (isMonth.arguments[1] === true);}}
    return isIntegerInRange (s, 1, 12);
}
function isDay (s)
{   if (isEmpty(s)){
       if (isDay.arguments.length === 1){return defaultEmptyOK;}
       else {return (isDay.arguments[1] === true);}}
    return isIntegerInRange (s, 1, 31);
}
function daysInFebruary (year)
{    return (  ((year % 4 === 0) && ( (!(year % 100 === 0)) || (year % 400 === 0) ) ) ? 29 : 28 );
}
function isDate (year, month, day)
{    if (! (isYear(year, false) && isMonth(month, false) && isDay(day, false))){return false;}
    var intYear = parseInt(year);
    var intMonth = parseInt(month);
    var intDay = parseInt(day);
    if (intDay > daysInMonth[intMonth]){return false; }
    if ((intMonth == 2) && (intDay > daysInFebruary(intYear))) {return false;}
    return true;
}
function prompt (s)
{   window.status = s;
}
function promptEntry (s)
{   window.status = pEntryPrompt + s;
}
function warnEmpty (theField, s)
{   theField.focus();
    alert(mPrefix + s + mSuffix);
    return false;
}
function warnInvalid (theField, s)
{   theField.focus();
    theField.select();
    alert(s);
    return false;
}
function checkString (theField, s, emptyOK)
{    if (checkString.arguments.length == 2) {emptyOK = defaultEmptyOK;}
    if ((emptyOK === true) && (isEmpty(theField.value))) {return true;}
    if (isWhitespace(theField.value)){ 
       return warnEmpty (theField, s);}
    else {return true;}
}
function checkStateCode (theField, emptyOK)
{   if (checkStateCode.arguments.length === 1){emptyOK = defaultEmptyOK;}
    if ((emptyOK === true) && (isEmpty(theField.value))){return true;}
    else
    {  theField.value = theField.value.toUpperCase();
       if (!isStateCode(theField.value, false)){ 
          return warnInvalid (theField, iStateCode);}
       else {return true;}
    }
}
function reformatZIPCode (ZIPString)
{   if (ZIPString.length === 5){return ZIPString;}
    else {return (reformat (ZIPString, "", 5, "-", 4));}
}
function checkZIPCode (theField, emptyOK)
{   if (checkZIPCode.arguments.length === 1){ emptyOK = defaultEmptyOK;}
    if ((emptyOK === true) && (isEmpty(theField.value))) {return true;}
    else
    { var normalizedZIP = stripCharsInBag(theField.value, ZIPCodeDelimiters);
      if (!isZIPCode(normalizedZIP, false)) {
         return warnInvalid (theField, iZIPCode);}
      else 
      {  theField.value = reformatZIPCode(normalizedZIP);
         return true;
      }
    }
}
function reformatUSPhone (USPhone)
{   return (reformat (USPhone, "(", 3, ") ", 3, "-", 4));
}
function checkUSPhone (theField, emptyOK)
{   if (checkUSPhone.arguments.length === 1) {emptyOK = defaultEmptyOK;}
    if ((emptyOK === true) && (isEmpty(theField.value))){return true;}
    else
    {  var normalizedPhone = stripCharsInBag(theField.value, phoneNumberDelimiters);
       if (!isUSPhoneNumber(normalizedPhone, false)){
          return warnInvalid (theField, iUSPhone);}
       else 
       {  theField.value = reformatUSPhone(normalizedPhone);
          return true;
       }
    }
}
function checkInternationalPhone (theField, emptyOK)
{   if (checkInternationalPhone.arguments.length === 1){emptyOK = defaultEmptyOK;}
    if ((emptyOK === true) && (isEmpty(theField.value))) {return true;}
    else
    {  if (!isInternationalPhoneNumber(theField.value, false)) {
          return warnInvalid (theField, iWorldPhone);}
       else {return true;}
    }
}
function checkEmail (theField, emptyOK)
{   if (checkEmail.arguments.length === 1){emptyOK = defaultEmptyOK;}
    if ((emptyOK === true) && (isEmpty(theField.value))) {return true;}
    else if (!isEmail(theField.value, false)){
       return warnInvalid (theField, iEmail);}
    else {return true;}
}
function reformatSSN (SSN)
{   return (reformat (SSN, "", 3, "-", 2, "-", 4));
}
function checkSSN (theField, emptyOK)
{   if (checkSSN.arguments.length === 1){emptyOK = defaultEmptyOK;}
    if ((emptyOK === true) && (isEmpty(theField.value))) {return true;}
    else
    {  var normalizedSSN = stripCharsInBag(theField.value, SSNDelimiters);
       if (!isSSN(normalizedSSN, false)){
          return warnInvalid (theField, iSSN);}
       else 
       {  theField.value = reformatSSN(normalizedSSN);
          return true;
       }
    }
}
function checkYear (theField, emptyOK)
{   if (checkYear.arguments.length === 1){emptyOK = defaultEmptyOK;}
    if ((emptyOK === true) && (isEmpty(theField.value))){return true;}
    if (!isYear(theField.value, false)){
       return warnInvalid (theField, iYear);}
    else {return true;}
}
function checkMonth (theField, emptyOK)
{   if (checkMonth.arguments.length === 1){emptyOK = defaultEmptyOK;}
    if ((emptyOK === true) && (isEmpty(theField.value))) {return true;}
    if (!isMonth(theField.value, false)){
       return warnInvalid (theField, iMonth);}
    else {return true;}
}
function checkDay (theField, emptyOK)
{   if (checkDay.arguments.length === 1) {emptyOK = defaultEmptyOK;}
    if ((emptyOK === true) && (isEmpty(theField.value))) {return true;}
    if (!isDay(theField.value, false)) {
       return warnInvalid (theField, iDay);}
    else{return true;}
}
function checkDate (yearField, monthField, dayField, labelString, OKtoOmitDay)
{    if (checkDate.arguments.length === 4) {OKtoOmitDay = false;}
    if (!isYear(yearField.value)) {return warnInvalid (yearField, iYear);}
    if (!isMonth(monthField.value)) {return warnInvalid (monthField, iMonth);}
    if ( (OKtoOmitDay === true) && isEmpty(dayField.value) ) {return true;}
    else if (!isDay(dayField.value)){
       return warnInvalid (dayField, iDay);}
    if (isDate (yearField.value, monthField.value, dayField.value)){
       return true;}
    alert (iDatePrefix + labelString + iDateSuffix);
    return false;
}
function getRadioButtonValue (radio)
{   for (var i = 0; i < radio.length; i++)
    {   if (radio[i].checked) { break; }
    }
    return radio[i].value;
}
function isVisa(cc)
{
  if (((cc.length === 16) || (cc.length === 13)) &&
      (cc.substring(0,1) === 4)){
    return isCreditCard(cc);}
  return false;
}
function isMasterCard(cc)
{
  firstdig = cc.substring(0,1);
  seconddig = cc.substring(1,2);
  if ((cc.length === 16) && (firstdig === 5) &&
      ((seconddig >= 1) && (seconddig <= 5))){
    return isCreditCard(cc);}
  return false;
}
function isAmericanExpress(cc)
{
  firstdig = cc.substring(0,1);
  seconddig = cc.substring(1,2);
  if ((cc.length === 15) && (firstdig === 3) &&
      ((seconddig === 4) || (seconddig == 7))){
    return isCreditCard(cc);}
  return false;
}
function isDinersClub(cc)
{
  firstdig = cc.substring(0,1);
  seconddig = cc.substring(1,2);
  if ((cc.length === 14) && (firstdig === 3) &&
      ((seconddig === 0) || (seconddig === 6) || (seconddig === 8))){
    return isCreditCard(cc);}
  return false;
}
function isCarteBlanche(cc)
{
  return isDinersClub(cc);
}
function isDiscover(cc)
{
  first4digs = cc.substring(0,4);
  if ((cc.length === 16) && (first4digs == "6011")){
    return isCreditCard(cc);}
  return false;

}
function isEnRoute(cc)
{
  first4digs = cc.substring(0,4);
  if ((cc.length === 15) &&
      ((first4digs == "2014") ||
       (first4digs == "2149"))){
    return isCreditCard(cc);}
  return false;
}

function isCardMatch (cardType, cardNumber)
{
	cardType = cardType.toUpperCase();
	var doesMatch = true;
	if ((cardType == "VISA") && (!isVisa(cardNumber))){
		doesMatch = false;}
	if ((cardType == "MASTERCARD") && (!isMasterCard(cardNumber))){
		doesMatch = false;}
	if ( ( (cardType == "AMERICANEXPRESS") || (cardType == "AMEX") )
                && (!isAmericanExpress(cardNumber))) {doesMatch = false;}
	if ((cardType == "DISCOVER") && (!isDiscover(cardNumber))){
		doesMatch = false;}
	if ((cardType == "JCB") && (!isJCB(cardNumber))){
		doesMatch = false;}
	if ((cardType == "DINERS") && (!isDinersClub(cardNumber))){
		doesMatch = false;}
	if ((cardType == "CARTEBLANCHE") && (!isCarteBlanche(cardNumber))){
		doesMatch = false;}
	if ((cardType == "ENROUTE") && (!isEnRoute(cardNumber))){
		doesMatch = false;}
	return doesMatch;
}

function checkCreditCard (radio, theField)
{   var cardType = getRadioButtonValue (radio);
    var normalizedCCN = stripCharsInBag(theField.value, creditCardDelimiters);
    if (!isCardMatch(cardType, normalizedCCN)){
       return warnInvalid (theField, iCreditCardPrefix + cardType + iCreditCardSuffix);}
    else 
    {  theField.value = normalizedCCN;
       return true;
    }
}
function isCreditCard(st) {
  if (st.length > 19){
    return (false);}
  sum = 0; mul = 1; l = st.length;
  for (i = 0; i < l; i++) {
    digit = st.substring(l-i-1,l-i);
    tproduct = parseInt(digit ,10)*mul;
    if (tproduct >= 10){
      sum += (tproduct % 10) + 1;}
    else{
      sum += tproduct;}
    if (mul === 1){
      mul++;}
    else{
      mul--;}
  }
  if ((sum % 10) === 0){
    return (true);}
  else{
    return (false);}

}
function isJCB(cc)
{
  first4digs = cc.substring(0,4);
  if ((cc.length === 16) && ((first4digs == "3088") || (first4digs == "3096") || (first4digs == "3112") || (first4digs == "3158") ||(first4digs == "3337") ||(first4digs == "3528"))){
    return isCreditCard(cc);}
  return false;
}
function isAnyCard(cc)
{
  if (!isCreditCard(cc)){
    return false;}
  if (!isMasterCard(cc) && !isVisa(cc) && !isAmericanExpress(cc) && !isDinersClub(cc) &&
      !isDiscover(cc) && !isEnRoute(cc) && !isJCB(cc)) {
    return false;
  }
  return true;

}

function IsCC (st) {
    return isCreditCard(st);
}
function IsVisa (cc)  {
  return isVisa(cc);
}
function IsVISA (cc)  {
  return isVisa(cc);
}
function IsMasterCard (cc)  {
  return isMasterCard(cc);
}
function IsMastercard (cc)  {
  return isMasterCard(cc);
}
function IsMC (cc)  {
  return isMasterCard(cc);
}
function IsAmericanExpress (cc)  {
  return isAmericanExpress(cc);
}
function IsAmEx (cc)  {
  return isAmericanExpress(cc);
}
function IsDinersClub (cc)  {
  return isDinersClub(cc);
}
function IsDC (cc)  {
  return isDinersClub(cc);
}
function IsDiners (cc)  {
  return isDinersClub(cc);
}
function IsCarteBlanche (cc)  {
  return isCarteBlanche(cc);
}
function IsCB (cc)  {
  return isCarteBlanche(cc);
}
function IsDiscover (cc)  {
  return isDiscover(cc);
}
function IsEnRoute (cc)  {
  return isEnRoute(cc);
}
function IsenRoute (cc)  {
  return isEnRoute(cc);
}
function IsJCB (cc)  {
  return isJCB(cc);
}
function IsAnyCard(cc)  {
  return isAnyCard(cc);
}
function IsCardMatch (cardType, cardNumber)  {
  return isCardMatch (cardType, cardNumber);
}
function activate(field) {
  field.disabled=false;
  if(document.styleSheets){field.style.visibility  = 'visible';}
  field.focus();
}
function last_choice(selection) {
  return selection.selectedIndex==selection.length - 1;
}
function alternate_choice(selection,value) {
  return selection.options[selection.selectedIndex].value==value;
}
function process_choice(selection,textfield,value) {
  if(selection.options[selection.selectedIndex].value == value) {
    activate(textfield);
  } else {
    textfield.disabled = true; 
    if(document.styleSheets){textfield.style.visibility  = 'hidden';}
    textfield.value = '';
  }
}

function process_zone_record_choice(selection,textfield,value,textfield2) 
{
  if(selection.options[selection.selectedIndex].value == value) 
  {
    activate(textfield);
    textfield2.disabled = true; 
  } 
  else 
  {
    activate(textfield2);
    textfield.disabled = true; 
    if(document.styleSheets){textfield.style.visibility  = 'hidden';}
       textfield.value = '';
  }
}

function valid(menu,txt) {
  if(menu.selectedIndex === 0) {
    alert('You must make a selection from the ' + menu.name);
    return false;
  } 
  if(txt.value == '') {
    if(last_choice(menu)) {
      alert('You need to type your choice into the text box for ' + menu.name);
      return false; 
	} else {
      return true; 
    }
  } else {
    if(!last_choice(menu)) {
      alert('Incompatible selection');
      return false; 
	} else {
      return true; 
	}
  }
}
function check_choice(textfield,selection,value) {
  if(!alternate_choice(selection,value)) {
    textfield.blur();
    alert('Please check your menu selection first');
    selection.focus(); 
  }
}
function switchDiv(strDivName,bolVisible)
{
  //identify the element based on browser type
  if (_isNS4)
  {
    objElement = document.layers[strDivName];
  }
  else if (_isIE4)
  {
    objElement = document.all[strDivName].style;
  }
  else if (_isIE5 || _isNS6)
  {
    objElement = document.getElementById(strDivName).style;
  }

  if(_isNS4)
  {
    if(!bolVisible)
    {
     objElement.display ="none";
    }
    else
    {
      objElement.display ="";
    }
  }
  else if(_isIE4)
  {
    if(!bolVisible)
    {
      objElement.display ="none";
    }
    else
    {
      objElement.display ="";
    }
  }
  else if (_isIE5 || _isNS6)
  {
    if(!bolVisible)
    {
      objElement.display = "none";
      
    }
    else
    {
      objElement.display = "";
     
    }
  }
}


function setDnsPrefDiv() 
{
  if (document.editacct.dnsoption[0].checked)
  {
    switchDiv('customdns',true);
    switchDiv('monikerdns',false);
  }
  else
  {
    switchDiv('customdns',false);
    switchDiv('monikerdns',true);
  }
}

function showDiv(div_name) 
{
	document.getElementById(div_name).style.display = "none";
}
function hideDiv(div_name) 
{
	document.getElementById(div_name).style.display = "";
}


function hideIdnContainer(index)
{
  try
  {
     switchDiv('idnContainer'+index,false);
     var obj = eval("document.frmAddToCart.idn"+index);
     obj.options[obj.selectedIndex].value = 'QQQ';
  }
  catch (e)
  {
    //alert("ERROR: " + e.description);
  }
}


function validateIDNLanguage(myform)
{
  try
	{
	for (i = 0; i < myform.elements.length; i++)
    {
		var obj = myform.elements[i];
		if (obj.type == "select-one" && obj.name.indexOf('idn') != -1)
		{
	        //alert(obj.type);
			//alert(obj.name);
			//alert(obj.options[obj.selectedIndex].value);
			
			var tld = 'TLD_' + obj.name.charAt(3);
			
			//alert(tld);
			var objTld = eval('myform.'+tld);
			
			if (objTld !== null && objTld.value.length >= 2)
			{
				//alert(objTld.type);
				//alert(objTld.value);
				var value = obj.options[obj.selectedIndex].value;
				if (value === null || value.length === 0)
				{
					alert("Please select a valid language for your IDN domain");
					obj.focus();
					return false;
				}
			}
		}
    }
	return true;
  }
  catch (e)
  {
    alert("A JavaScript error was encountered while validating your form post.\nError: " + e.description + "\nPlease review your entries and try again");
    return false;
  }
}

function scrollTop()
{
    scrollTo(0,0);
}

function checkCapsLock( e ) {
	var myKeyCode=0;
	var myShiftKey=false;
	
	// Internet Explorer 4+
	if ( document.all ) {
		myKeyCode=e.keyCode;
		myShiftKey=e.shiftKey;

	// Netscape 4
	} else if ( document.layers ) {
		myKeyCode=e.which;
		myShiftKey=( myKeyCode === 16 ) ? true : false;

	// Netscape 6
	} else if ( document.getElementById ) {
		myKeyCode=e.which;
		myShiftKey=( myKeyCode === 16 ) ? true : false;
	}
	// Upper case letters are seen without depressing the Shift key, therefore Caps Lock is on
	if ( ( myKeyCode >= 65 && myKeyCode <= 90 ) && !myShiftKey ) {
		return true;
	// Lower case letters are seen while depressing the Shift key, therefore Caps Lock is on
	} else if ( ( myKeyCode >= 97 && myKeyCode <= 122 ) && myShiftKey ) {
		return true;
	}
	return false;
}

function getKeyCode(event)
{
	// Internet Explorer 4+
	if ( document.all ) {
		return (e.keyCode);
	// Netscape 4 and up
	} else if ( document.layers || document.getElementById) {
		return(e.which);
	}
	return e.which;
}

function textAreaCounter(field,cntfield,maxlimit) {
	
	if (field.value.length > maxlimit-1){ // if too long...trim it!
		field.value = field.value.substring(0, maxlimit-1);}
	
	// otherwise, update 'characters left' counter
	else{
		cntfield.value = maxlimit - field.value.length -1;}
}