// VARIABLE DECLARATIONS
var digits = "0123456789";
var lowercaseLetters = "abcdefghijklmnopqrstuvwxyz"
var uppercaseLetters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
var whitespace = " \t\n\r";
var decimalPointDelimiter = "."
var phoneNumberDelimiters = "()- ";
var validUSPhoneChars = 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
// m is an abbreviation for "missing"

var mPrefix = "You did not enter a value into the "
var mSuffix = " field. This is a required field. Please enter it now."

// i is an abbreviation for "invalid"
var inumeric="Your entry must be numeric(e.g. 1,2,3). Please re-enter it now."
var ialphanumeric="Your entry must be alphanumeric(e.g. a,b,c,1,2,3). Please re-enter it now."
var iStateCode = "Please enter a two-character U.S. state abbreviation (e.g. OR for Oregon)."
var iZIPCode = "Please enter a five- or nine-digit U.S. ZIP Code (e.g. 97266 or 97266-2222)."
var iZIPCodeUSCanada = "Please enter a five- or nine-digit U.S. ZIP Code (e.g. 97266 or 97266-2222) or a valid Canadian Zip Code (e.g. V7X 1M9)."
var iUSPhone = "Please enter a 10-digit U.S. phone number (e.g. 503 257-0155)."
var iSSN = "Please enter a 9-digit U.S. Social Security number (e.g. 123 45 6789)."
var iEmail = "Please enter a valid email address (e.g. yourname@yourdomain.com)."
var iDay = "Please enter a date number between 1 and 31."
var iMonth = "Please enter a month number between 1 (January) and 12 (December)."
var iYear = "Please enter a valid year as a four-digit number(e.g. 2005)."
var iDatePrefix = "The day, month, and year you entered"
var iDateSuffix = " do not form a valid date. Please re-enter a valid combination."
var iAmount=" "
var iVIN = "Your entry must be at least 17 digits and alphanumeric(e.g. a,b,c,1,2,3)."
var iMilTime = "Please enter a valid military time 00:00 to 23:59."
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"

// Check whether string s is empty.
function isEmpty(s)
{
        return ((s == null) || (s.length == 0))
}

// Returns true if string s is empty or
// whitespace characters only.

function isWhitespace(s)
{
        var i;

    // Is s empty?
    if (isEmpty(s)) return true;

    for (i = 0; i < s.length; i++)
    {
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (whitespace.indexOf(c) == -1) return false;
    }

    // All characters are whitespace.
    return true;
}


// Removes all characters which appear in string bag from string s.
function stripCharsInBag(s, bag)
{
        var i;
    var returnString = "";

    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.

    for (i = 0; i < s.length; i++)
    {
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }

    return returnString;
}

// Removes all characters which do NOT appear in string bag
// from string s.
function stripCharsNotInBag(s, bag)
{
        var i;
    var returnString = "";

    // Search through string's characters one by one.
    // If character is in bag, append to returnString.

    for (i = 0; i < s.length; i++)
    {
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (bag.indexOf(c) != -1) returnString += c;
    }

    return returnString;
}

// Removes all whitespace characters from s.
// Global variable whitespace (see above)
// defines which characters are considered whitespace.
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
}

// Removes initial (leading) whitespace characters from s.
// Global variable whitespace (see above)
// defines which characters are considered whitespace.

function stripInitialWhitespace(s)
{
        var i = 0;

    while ((i < s.length) && charInString (s.charAt(i), whitespace))
       i++;

    return s.substring (i, s.length);
}

// Returns true if character c is an English letter
// (A .. Z, a..z).
function isLetter(c)
{
        return ( ((c >= "a") && (c <= "z")) || ((c >= "A") && (c <= "Z")) )
}

// Returns true if character c is a digit
// (0 .. 9).
function isDigit(c)
{
        return ((c >= "0") && (c <= "9"))
}

function isSpace(c)
{
        return ((c ==" " ))
}

function isComma(c)
{
        return ((c=="," ))
}

function isDot(c)
{
        return ((c=="." ))
}

function isDollarSign(c)
{
        return ((c=="$" ))
}

// Returns true if character c is a letter or digit.
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++)
    {
        // Check that current character is number.
        var c = s.charAt(i);

        if (!isDigit(c)) return false;
    }

    // All characters are numbers.
    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];

        // skip leading + or -
        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++)
    {
        // Check that current character is number.
        var c = s.charAt(i);

        if ((c == decimalPointDelimiter) && !seenDecimalPoint) seenDecimalPoint = true;
        else if (!isDigit(c)) return false;
    }

    // All characters are numbers.
    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];

        // skip leading + or -
        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++)
    {
        // Check that current character is letter.
        var c = s.charAt(i);

        if (!isLetter(c))
        return false;
    }

    // All characters are letters.
    return true;
}

function isAlphanumeric(s)
{
           var i;

     for (i = 0; i < s.length; i++)
    {
        // Check that current character is number or letter.
        var c = s.charAt(i);

        if (! (isLetter(c) || isDigit(c) || isSpace(c) ) )
        return false;
    }

    // All characters are numbers or letters.
    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 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 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);

    // is s whitespace?
    if (isWhitespace(s)) return false;

    // there must be >= 1 character before @, so we
    // start looking at character position 1
    // (i.e. second character)
    var i = 1;
    var sLength = s.length;

    // look for @
    while ((i < sLength) && (s.charAt(i) != "@"))
    { i++
    }

    if ((i >= sLength) || (s.charAt(i) != "@")) return false;
    else i += 2;

    // look for .
    while ((i < sLength) && (s.charAt(i) != "."))
    { i++
    }

    // there must be at least one character after the .
    if ((i >= sLength - 1) || (s.charAt(i) != ".")) return false;
    else return true;
}


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 == 4) && (parseInt(s) > 1935) && (parseInt(s) < 2026) );
}


function isIntegerInRange(s, a, b)
{
        if (isEmpty(s))
       if (isIntegerInRange.arguments.length == 1) return defaultEmptyOK;
       else return (isIntegerInRange.arguments[1] == true);

    // Catch non-integer strings to avoid creating a NaN below,
    // which isn't available on JavaScript 1.0 for Windows.
    if (!isInteger(s, false)) return false;
    //alert(s);
    var num
    if (s=="08")
    {
             num=8;
    }
    else
    {
             if (s=="09")
             {
                      num=9;
             }
             else
             {
                      num = parseInt(s);
             }
    }

   // alert(num);
    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)
{   // February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (  ((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0) ) ) ? 29 : 28 );
}


function isDate(year, month, day)
{   // catch invalid years (not 2- or 4-digit) and invalid months and days.
    if (! (isYear(year, false) && isMonth(month, false) && isDay(day, false))) return false;

    // Explicitly change type to integer to make code work in both
    // JavaScript 1.1 and JavaScript 1.2.
    var intYear = parseInt(year);
    var intMonth = parseInt(month);
    var intDay = parseInt(day);

    // catch invalid days, except for February
    if (intDay > daysInMonth[intMonth]) return false;

    if ((intMonth == 2) && (intDay > daysInFebruary(intYear))) return false;

    return true;
}

function isAmount(s)
{
        var i;

    for (i = 0; i < s.length; i++)
    {
        var c = s.charAt(i);

        if (! (isComma(c) || isDigit(c) || isDot(c) ))
        {
           return false;
        }
    }
    return true;
}

function isDollarAmount(s)
{
        var i;
        var amt;
        amt = "";

    for (i = 0; i < s.length; i++)
    {
        var c = s.charAt(i);

        if (! (isComma(c) || isDigit(c) || isDot(c) || isDollarSign(c) ))
        {
           return false;
        }

        if (isDigit(c) || isDot(c))
        {
           amt = amt + c;
        }
    }

    if (amt == 0 || amt > 1000000)
        {
                return false;
        }

    return true;
}

function prompt(s)
{
        window.status = s
}


// Display data entry prompt string s in status bar.

function promptEntry(s)
{
        window.status = pEntryPrompt + s
}

function warnEmpty(theField, s)
{
    theField.focus();             // Note: An error on this line may indicate 2 fields on the page with the same name.
    alert(mPrefix + s + mSuffix)
    return false;
}

function warnInvalid(theField, s)
{
    theField.focus()
    //theField.select()
    alert(s)
    return false
}

/* FUNCTIONS TO INTERACTIVELY CHECK VARIOUS FIELDS. */

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 checkSring(theField, s, emptyOK)
{
    if ((emptyOK == true) && (isEmpty(theField.value)))
       return true;
    if ((emptyOK == false) && (isEmpty(theField.value)))
       return warnEmpty (theField, s);
    else
       return true;
}

function checkAlphanumeric(theField, s, emptyOK)
{
    if ((emptyOK == true) && (isEmpty(theField.value))) return true;
    if (isWhitespace(theField.value))
      {
       return warnEmpty (theField, s);
      }
    if (isAlphanumeric(theField.value))
       return true;
    else
       return warnInvalid (theField, s + ialphanumeric);
}

function checkAmount(theField, s, emptyOK)
{
   if ((emptyOK == true) && (isEmpty(theField.value))) return true;
   if (isEmpty(theField.value))
   {
       return warnInvalid (theField, s+iAmount);
   }
   if (isAmount(theField.value)) {
       return true;
   }
   else {
       return warnInvalid (theField, s+iAmount);
   }
}

function checknumeric(theField, s, emptyOK)
{
    if ((emptyOK == true) && (isEmpty(theField.value))) return true;
    if (isNaN(theField.value) || isEmpty(theField.value))
       return warnInvalid (theField, s + inumeric);
    else
       return true;
}


function checkStateCode(theField,s, emptyOK)
{
    if ((emptyOK == true) && (isEmpty(theField.value))) return true;
    else
    {
                theField.value = theField.value.toUpperCase();
              if (!isStateCode(theField.value, false))
                return warnInvalid (theField, s+iStateCode);
              else return true;
    }
}

function reformatZIPCode(ZIPString)
{
        if (ZIPString.length == 5) return ZIPString;
    else return (reformat (ZIPString, "", 5, "-", 4));
}


function checkZIPCode(theField,s,emptyOK)
{
    if ((emptyOK == true) && (isEmpty(theField.value))) return true;
    else
    {
                var normalizedZIP = stripCharsInBag(theField.value, ZIPCodeDelimiters)
              if (!isZIPCode(normalizedZIP, false))
                 return warnInvalid (theField, s+iZIPCode);
              else
              {  // if you don't want to insert a hyphen, comment next line out
         theField.value = reformatZIPCode(normalizedZIP)
         return true;
              }
    }
}

function reformatUSPhone(USPhone)
{
        return (reformat (USPhone, "(", 3, ") ", 3, "-", 4))
}

function checkUSPhone(theField,s, emptyOK)
{
    if ((emptyOK == true) && (isEmpty(theField.value))) return true;
    else
    {  var normalizedPhone = stripCharsInBag(theField.value, phoneNumberDelimiters)
       if (!isUSPhoneNumber(normalizedPhone, false))
          return warnInvalid (theField, s+iUSPhone);
       else
       {  // if you don't want to reformat as (123) 456-789, comment next line out
          theField.value = reformatUSPhone(normalizedPhone)
          return true;
       }
    }
}

function checkEmail(theField,s, 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, s+iEmail);
    else return true;
}

function checkYear(theField,s,emptyOK)
{
        if (checkYear.arguments.length == 1) emptyOK = defaultEmptyOK;
    if ((emptyOK == true) && (isEmpty(theField.value))) return true;
    if (!isYear(theField.value, false))
       return warnInvalid (theField, s + 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 checkVIN(theField,s,emptyOK)
{
    if ((emptyOK == true) && (isEmpty(theField.value))) return true;
    if ( (!isAlphanumeric(theField.value, false)) || theField.value.length < 17 )
       return warnInvalid (theField, s + iVIN);
    else return true;
}

function checkDate(yearField, monthField, dayField, labelString,emptyOK, OKtoOmitDay)
{   // Next line is needed on NN3 to avoid "undefined is not a number" error
    // in equality comparison below.
    if (checkDate.arguments.length == 5) OKtoOmitDay = false;
    if ((emptyOK == true) && (isEmpty(yearField.value)) && (isEmpty(monthField.value)) && (isEmpty(dayField.value)) ) return true;

    if (!isMonth(monthField.value)) return warnInvalid (monthField, labelString+iMonth);
    if ( (OKtoOmitDay == true) && isEmpty(dayField.value) ) return true;
    else if (!isDay(dayField.value))
       return warnInvalid (dayField, labelString+iDay);
    if (!isYear(yearField.value)) return warnInvalid (yearField, labelString+iYear);
    if (isDate (yearField.value, monthField.value, dayField.value))
       return true;
    alert (iDatePrefix + iDateSuffix)
    return false
}

function checkDropDown(theField, s, emptyOK)
{
    if ((emptyOK == true) && (isEmpty(theField.value))) {
       return true;
    }

    if (isWhitespace(theField.value)) {
       alert("Please select a value for the " + s + " drop down.");
       theField.focus();
       return false;
    } else {
       return true;
    }
}

function getRadioButtonValue(radio)
{
        for (var i = 0; i < radio.length; i++)
    {
                if (radio[i].checked) { break }
    }
    return radio[i].value
}

function checkSelectList(theField,label)
{
        if (theField.selectedIndex==0)
        {
         alert(label + " was not selected. Please select one.");
         return false;
        }
        else
           return true ;
}

function checkRadioButton(theField,label)
{
        var index=""
        index=theField.length ;
        if (isNaN(index))
        {
                index="ZeroLength" ;
        }

        if (index=="ZeroLength")
        {
                if (theField.checked)
                {
                        return true;
                }
    }
    else
    {
                for (var i = 0; i < index; i++)
                {
                        if (theField[i].checked)
                    {
                     return true;
                     break ;
                    }
                }
        }
    alert(label + " was not selected. Please select one.");
    return false;
}

function checkImageSize(theImageField, intMaxWidth, intMaxHeight, strErrorMessage)
{
        var myImage = new Image();
        var strFileName;
        var intImageWidth;
        var intImageHeight;
        var blnReturnValue;


        strFileName = theImageField.value;

        if (IsNetscape())
        {
                strFileName = strFileName;
        }


        myImage.src = strFileName;
        intImageWidth = myImage.width;
        intImageHeight = myImage.height;
        myImage = null;

        if ((intImageWidth > intMaxWidth) || (intImageHeight > intMaxHeight))
        {
                if (strErrorMessage != "")
                {
                        alert(strErrorMessage);
                        theImageField.focus();
                }
                blnReturnValue = false;
        }
        else
        {
                blnReturnValue = true;
        }

        return blnReturnValue;
}

function IsNetscape()
{
        var intLayers;

        intLayers = (document.layers) ? 1 : 0;

        if (intLayers == 0)
                return false;
        else
                return true;
}

//
// WARNING!!!!!! - This function has not been properly integrated into the logic of this file!!!!
//                 It's a copy of some code that I found on the web that has not been integrated
//                 in with the rest of this file!
//
// Checks if time is in HH:MM:SS AM/PM format.
// The seconds and AM/PM are optional.
//
function IsValidTime(timeStr)
{
   var timePat = /^(\d{1,2}):(\d{2})(:(\d{2}))?(\s?(AM|am|PM|pm))?$/;

   var matchArray = timeStr.match(timePat);

   if (matchArray == null)
      {
       alert("Time is not in a valid format.");
       return false;
      }
   hour = matchArray[1];
   minute = matchArray[2];
   second = matchArray[4];
   ampm = matchArray[6];

   if (second=="")
      {
       second = null;
      }

   if (ampm=="")
      {
       ampm = null
      }

   if (hour < 0  || hour > 23)
      {
       alert("Hour must be between 1 and 12. (or 0 and 23 for military time)");
       return false;
      }

   if (hour <= 12 && ampm == null)
      {
       if (confirm("Please indicate which time format you are using.  OK = Standard Time, CANCEL = Military Time"))
          {
           alert("You must specify AM or PM.");
           return false;
          }
      }

   if (hour > 12 && ampm != null)
      {
       alert("You can't specify AM or PM for military time.");
       return false;
      }

   if (minute<0 || minute > 59)
      {
       alert ("Minute must be between 0 and 59.");
       return false;
      }

   if (second != null && (second < 0 || second > 59))
      {
       alert ("Second must be between 0 and 59.");
       return false;
      }

   return false;
}

// Function to check for a valid military time without seconds, HH:MM
function checkMilTimeHHMM(hourField, minuteField, labelString, emptyOK)
{
    if ((emptyOK == true) && (isEmpty(hourField.value)) && (isEmpty(minuteField.value))) return true;
    else if (!isIntegerInRange(hourField.value, 0, 23))
       return warnInvalid (hourField, iMilTime);
    else if (!isIntegerInRange(minuteField.value, 0, 59))
       return warnInvalid (minuteField, iMilTime);
    else return true;
}

//******************************************************************************************
// Function to calculate the number of seconds between two times in military format.
//******************************************************************************************
function TimeDiffSecondsMil(lHHStart, lMMStart, lHHEnd, lMMEnd)
{

   var dStartDate;
   var dEndDate;
   var tStartTime;
   var tEndTime;
   var tTimeDiff;
   var lDiffSeconds;

   dStartDate = new Date(02, 1, 1, lHHStart, lMMStart, 00);
   dEndDate = new Date(02, 1, 1, lHHEnd, lMMEnd, 00);

   tStartTime = dStartDate.getTime();
   tEndTime = dEndDate.getTime();

   tTimeDiff = tEndTime - tStartTime;

   lDiffSeconds = tTimeDiff / 1000;

   return(lDiffSeconds);

}

function trim(s) {
   while (s.substring(0,1) == " ") {
      s = s.substring(1,s.length);
   }
   while (s.substring(s.length-1,s.length) == " ") {
      s = s.substring(0,s.length-1);
   }
   return s;
}

//**************************************************************//
//* New function added to validate a US or a Canadian Zip Code *//
//**************************************************************//
function checkZIPCodeUSCanada(theField, s, emptyOK) {

   if ((emptyOK == true) && (isEmpty(theField.value))) {
      return true;
   } else {

      var normalizedZIP = stripCharsInBag(theField.value, ZIPCodeDelimiters);

      if (!isZIPCode(normalizedZIP, false)) {

         var RegEx = /(^\d{5}$)|(^\d{5}-\d{4}$)|(^[A-Z][0-9][A-Z][0-9][A-Z][0-9]$)|(^[A-Z][0-9][A-Z].[0-9][A-Z][0-9]$)/ ;
         var sZip;

         sZip = trim(theField.value);
         sZip = sZip.toUpperCase();

         // It's not a valid US zip, check it for a valid Canadian zip. (note: regular expression check for both US and Canadian zips)
         if (RegEx.test(sZip)) {
            theField.value = sZip;
            return true;
         } else {
            return warnInvalid (theField, s + iZIPCodeUSCanada);
         }

      } else {
         // if you don't want to insert a hyphen, comment next line out
         theField.value = reformatZIPCode(normalizedZIP);
         return true;
      }
   }
}