//Call a new window to display the help text when Help? button pressed

function helpmessage(filename){
	var fullfile="help/" + filename
	msgwin = window.open(fullfile, "newindow","width=375,height=400,scrollbars=yes,resizable=yes");
}

//set change field to true if change is made in form. Called by onChange event of each field
function setChange(){
	document.form1.change.value = "true"
}

// check for correct string length
function getStringLength(obj, num)
{	val=obj.value 
	if (val.length > num)
{	alert("The "+ obj.name +" field exceeds it's maximum character count of "+ num + ". Please correct.")
	obj.focus()
	return false;  }
	return true;
}

// Get checked value from radio button.

function getRadioButtonValue (radio)
{   var found = 0
	for (var i = 0; i < radio.length; i++)
    {   if (radio[i].checked) 
		{   found = 1
			break }
    }
    if (found == 1)
	{ return radio[i].value; }
	else
	{ return false; }
}

function checkRadio(theField, theMessage)
{	var bdvalue= false
	bdvalue= eval(getRadioButtonValue(theField))
   if (bdvalue != false)
     { return true; }
	else
{ alert ("You have not selected " + theMessage + ". This is a required field. Please click OK and correct.");
return false;}
}

// FormChek.js
//
// 18 Feb 97 created Eric Krock
//
// (c) 1997 Netscape Communications Corporation




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 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 sTitle = "Title"
var sCompanyName = "Company Name"
var sUSAddress = "Street Address"
var sCity = "City"
var sStateCode = "State Code"
var sCountry = "Country"
var sZIPCode = "ZIP 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 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 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 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 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 iInteger = "This field must be a valid integer. Please reenter it now."
var iFloat = "This field must be a valid number. It can contain a decimal point but no other characters. Please reenter it 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 pSSN = "9 digit U.S. social security number (like 123 45 6789)."
var pEmail = "valid email address (like foo@bar.com)."
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|UK|00"

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++)
    {   
        // Check that current character isn't whitespace.
        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++)
    {   
        // Check that current character isn't whitespace.
        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++)
    {   
        // Check that current character is number.
        var c = s.charAt(i);

        if (!isDigit(c)) return false;

    }

    // All characters are numbers.
    return true;
}



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 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];

    // The next line is a bit byzantine.  What it means is:
    // a) s must be a signed integer, AND
    // b) one of the following must be true:
    //    i)  s is empty and we are supposed to return true for
    //        empty strings
    //    ii) this is a positive, not negative, number

    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];

    // The next line is a bit byzantine.  What it means is:
    // a) s must be a signed integer, AND
    // b) one of the following must be true:
    //    i)  s is empty and we are supposed to return true for
    //        empty strings
    //    ii) this is a number >= 0

    return (isSignedInteger(s, secondArg)
         && ( (isEmpty(s) && secondArg)  || (parseInt (s) >= 0) ) );
}






// isNegativeInteger (STRING s [, BOOLEAN emptyOK])
// 
// Returns true if string s is an integer < 0.
//
// For explanation of optional argument emptyOK,
// see comments of function isInteger.

function isNegativeInteger (s)
{   var secondArg = defaultEmptyOK;

    if (isNegativeInteger.arguments.length > 1)
        secondArg = isNegativeInteger.arguments[1];

    // The next line is a bit byzantine.  What it means is:
    // a) s must be a signed integer, AND
    // b) one of the following must be true:
    //    i)  s is empty and we are supposed to return true for
    //        empty strings
    //    ii) this is a negative, not positive, number

    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;
    }

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

        if (! (isLetter(c) || isDigit(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);
   
    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;
}



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);
}



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)
{   // 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;

    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)
{   // Next line is needed on NN3 to avoid "undefined is not a number" error
    // in equality comparison below.
    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 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 
       {  // if you don't want to reformats as 123-456-7890, comment next line out
          //theField.value = reformatSSN(normalizedSSN)
          theField.value = normalizedSSN  //return field with no hyphens
         return true;
       }
    }
}


function checkInteger (theField, emptyOK)
{   if (checkInteger.arguments.length == 1) emptyOK = defaultEmptyOK;
    if ((emptyOK == true) && (isEmpty(theField.value))) return true;
    if (isWhitespace(theField.value)) 
       return warnEmpty (theField, theField.name);
    else
    {  if (!isInteger(theField.value, false)) 
          return warnInvalid (theField, iInteger);
       else return true;
    }
}

function checkFloat (theField, emptyOK)
{   if (checkFloat.arguments.length == 1) emptyOK = defaultEmptyOK;
    if ((emptyOK == true) && (isEmpty(theField.value))) return true;
    else
    {  if (!isFloat(theField.value, false)) 
          return warnInvalid (theField, iFloat);
       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 
      {  // 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, 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 
       {  // if you don't want to reformat as (123) 456-789, comment next line out
          theField.value = reformatUSPhone(normalizedPhone)
          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 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)
{   // Next line is needed on NN3 to avoid "undefined is not a number" error
    // in equality comparison below.
    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
}


//This function added by Les White from JavaScript Source

function isValidDate(theField, dateStr, emptyOK) 
// Checks for the following valid date formats:
// MM/DD/YY   MM/DD/YYYY   MM-DD-YY   MM-DD-YYYY
// Also separates date into month, day, and year variables
{
    if (isValidDate.arguments.length == 2) emptyOK = defaultEmptyOK;
    if ((emptyOK == true) && (isEmpty(dateStr))) return true;
    if (isWhitespace(dateStr)) 
       return warnEmpty (theField, theField.name);
    else 

{
var datePat = /^(\d{1,2})(\/|-)(\d{1,2})\2(\d{2}|\d{4})$/;

// To require a 4 digit year entry, use this line instead:
// var datePat = /^(\d{1,2})(\/|-)(\d{1,2})\2(\d{4})$/;

var matchArray = dateStr.match(datePat); // is the format ok?
if (matchArray == null) {
alert("Date is not in a valid format.")
return false;
}
month = matchArray[1]; // parse date into variables
day = matchArray[3];
year = matchArray[4];
if (month < 1 || month > 12) { // check month range
alert("Month must be between 1 and 12.");
return false;
}
if (day < 1 || day > 31) {
alert("Day must be between 1 and 31.");
return false;
}
if ((month==4 || month==6 || month==9 || month==11) && day==31) {
alert("Month "+month+" doesn't have 31 days!")
return false
}
if (month == 2) { // check for february 29th
var isleap = (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0));
if (day>29 || (day==29 && !isleap)) {
alert("February " + year + " doesn't have " + day + " days!");
return false;
   }
}
return true;  // date is valid
}
}

function isChecked(theBox, theField) 
// If theBox is checked but theField is empty, return false
{	if ((theBox.checked && theField.value == "") || (!(theBox.checked) && theField.value != ""))
{	alert("You have either selected the " + theBox.name + " checkbox but failed to include the " + theField.name + " value for that item or vice versa. Please click OK and correct.") 
	return false;    
	} 
else return true;
}

//Function from javascripts.com to allow entry of dates by numbers only. "/" will be added automatically
// Check browser version
var isNav4 = false, isNav5 = false, isIE4 = false
var strSeperator = "/"; 
// If you are using any Java validation on the back side you will want to use the / because 
// Java date validations do not recognize the dash as a valid date separator.

var vDateType = 1; // Global value for type of date format
//                1 = mm/dd/yyyy
//                2 = yyyy/dd/mm  (Unable to do date check at this time)
//                3 = dd/mm/yyyy

var vYearType = 4; //Set to 2 or 4 for number of digits in the year for Netscape
var vYearLength = 2; // Set to 4 if you want to force the user to enter 4 digits for the year before validating.

var err = 0; // Set the error code to a default of zero


if(navigator.appName == "Netscape") 
{
   if (navigator.appVersion < "5")  
   {
      isNav4 = true;
      isNav5 = false;
	}
   else
   if (navigator.appVersion > "4") 
   {
      isNav4 = false;
      isNav5 = true;
	}
}
else  
{
   isIE4 = true;
}

function DateFormat(vDateName, vDateValue, e, dateCheck, dateType)  {

vDateType = dateType;
   
// vDateName = object name
// vDateValue = value in the field being checked
// e = event
// dateCheck 
//       True  = Verify that the vDateValue is a valid date
//       False = Format values being entered into vDateValue only
// vDateType
//       1 = mm/dd/yyyy
//       2 = yyyy/mm/dd
//       3 = dd/mm/yyyy

   
 var whichCode = (window.Event) ? e.which : e.keyCode;
 
   // Check to see if a seperator is already present.
   // bypass the date if a seperator is present and the length greater than 8
   if (vDateValue.length > 8 && isNav4)
   {
      if ((vDateValue.indexOf("-") >= 1) || (vDateValue.indexOf("/") >= 1))
         return true;
   }
   
   //Eliminate all the ASCII codes that are not valid
   var alphaCheck = " abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-";
   if (alphaCheck.indexOf(vDateValue) >= 1)  
   {
      if (isNav4)
      {
    //     vDateName.value = "";
         vDateName.focus();
         vDateName.select();
         return false;
      }
      else
      {
         vDateName.value = vDateName.value.substr(0, (vDateValue.length-1));
         return false;
      } 
   }
   if (whichCode == 8) //Ignore the Netscape value for backspace. IE has no value
      return false;
   else 
   {
      //Create numeric string values for 0123456789/
      //The codes provided include both keyboard and keypad values
      
      var strCheck = '47,48,49,50,51,52,53,54,55,56,57,58,59,95,96,97,98,99,100,101,102,103,104,105';
      if (strCheck.indexOf(whichCode) != -1)  
      {
         if (isNav4)  
         {
            if (((vDateValue.length < 6 && dateCheck) || (vDateValue.length == 7 && dateCheck)) && (vDateValue.length >=1))
            {
               alert("Invalid Date\nPlease Re-Enter");
           //    vDateName.value = "";
               vDateName.focus();
               vDateName.select();
               return false;
            }
            if (vDateValue.length == 6 && dateCheck)  
            {
               var mDay = vDateName.value.substr(2,2);
               var mMonth = vDateName.value.substr(0,2);
               var mYear = vDateName.value.substr(4,4)
               
               //Turn a two digit year into a 4 digit year
               if (mYear.length == 2 && vYearType == 4) 
               {
                  var mToday = new Date();
                  
                  //If the year is greater than 30 years from now use 19, otherwise use 20
                  var checkYear = mToday.getFullYear() + 30; 
                  var mCheckYear = '20' + mYear;
                  if (mCheckYear >= checkYear)
                     mYear = '19' + mYear;
                  else
                     mYear = '20' + mYear;
               }
               var vDateValueCheck = mMonth+strSeperator+mDay+strSeperator+mYear;
               
               if (!dateValid(vDateValueCheck))  
               {
                  alert("Invalid Date\nPlease Re-Enter");
             //     vDateName.value = "";
                  vDateName.focus();
                  vDateName.select();
                  return false;
		         }
               return true;
            
            }
            else
            {
               // Reformat the date for validation and set date type to a 1
               
               
               if (vDateValue.length >= 8  && dateCheck)  
               {
                  if (vDateType == 1) // mmddyyyy
                  {
                     var mDay = vDateName.value.substr(2,2);
                     var mMonth = vDateName.value.substr(0,2);
                     var mYear = vDateName.value.substr(4,4)
                     vDateName.value = mMonth+strSeperator+mDay+strSeperator+mYear;
                  }
                  if (vDateType == 2) // yyyymmdd
                  {
                     var mYear = vDateName.value.substr(0,4)
                     var mMonth = vDateName.value.substr(4,2);
                     var mDay = vDateName.value.substr(6,2);
                     vDateName.value = mYear+strSeperator+mMonth+strSeperator+mDay;
                  }
                  if (vDateType == 3) // ddmmyyyy
                  {
                     var mMonth = vDateName.value.substr(2,2);
                     var mDay = vDateName.value.substr(0,2);
                     var mYear = vDateName.value.substr(4,4)
                     vDateName.value = mDay+strSeperator+mMonth+strSeperator+mYear;
                  }
                  
                  //Create a temporary variable for storing the DateType and change
                  //the DateType to a 1 for validation.
                  
                  var vDateTypeTemp = vDateType;
                  vDateType = 1;
                  var vDateValueCheck = mMonth+strSeperator+mDay+strSeperator+mYear;
                  
                  if (!dateValid(vDateValueCheck))  
                  {
                     alert("Invalid Date\nPlease Re-Enter");
                     vDateType = vDateTypeTemp;
                   //  vDateName.value = "";
                     vDateName.focus();
                     vDateName.select();
                     return false;
		            }
                     vDateType = vDateTypeTemp;
                     return true;
	            }
               else
               {
                  if (((vDateValue.length < 8 && dateCheck) || (vDateValue.length == 9 && dateCheck)) && (vDateValue.length >=1))
                  {
                     alert("Invalid Date\nPlease Re-Enter");
                 //    vDateName.value = "";
                     vDateName.focus();
                     vDateName.select();
                     return false;
                  }
               }
            }
         }
         else  
         {
         // Non isNav Check
            if (((vDateValue.length < 8 && dateCheck) || (vDateValue.length == 9 && dateCheck)) && (vDateValue.length >=1))
            {
               alert("Invalid Date\nPlease Re-Enter");
            //   vDateName.value = "";
               vDateName.focus();
               return true;
            }
            
            // Reformat date to format that can be validated. mm/dd/yyyy
            
            
            if (vDateValue.length >= 8 && dateCheck)  
            {
            
               // Additional date formats can be entered here and parsed out to
               // a valid date format that the validation routine will recognize.
               
               if (vDateType == 1) // mm/dd/yyyy
               {
                  var mMonth = vDateName.value.substr(0,2);
                  var mDay = vDateName.value.substr(3,2);
                  var mYear = vDateName.value.substr(6,4)
               }
               if (vDateType == 2) // yyyy/mm/dd
               {
                  var mYear = vDateName.value.substr(0,4)
                  var mMonth = vDateName.value.substr(5,2);
                  var mDay = vDateName.value.substr(8,2);
               }
               if (vDateType == 3) // dd/mm/yyyy
               {
                  var mDay = vDateName.value.substr(0,2);
                  var mMonth = vDateName.value.substr(3,2);
                  var mYear = vDateName.value.substr(6,4)
               }
               if (vYearLength == 4)
               {
                  if (mYear.length < 4)
                  {
                     alert("Invalid Date\nPlease Re-Enter");
             //        vDateName.value = "";
                     vDateName.focus();
                     return true;
                  }
               }
               
               // Create temp. variable for storing the current vDateType
               var vDateTypeTemp = vDateType;
               
               // Change vDateType to a 1 for standard date format for validation
               // Type will be changed back when validation is completed.
               vDateType = 1;
               
               // Store reformatted date to new variable for validation.
               var vDateValueCheck = mMonth+strSeperator+mDay+strSeperator+mYear;
               
               if (mYear.length == 2 && vYearType == 4 && dateCheck)  
               {
                  
                  //Turn a two digit year into a 4 digit year
                  var mToday = new Date();
                  
                  //If the year is greater than 30 years from now use 19, otherwise use 20
                  var checkYear = mToday.getFullYear() + 30; 
                  var mCheckYear = '20' + mYear;
                  if (mCheckYear >= checkYear)
                     mYear = '19' + mYear;
                  else
                     mYear = '20' + mYear;
                  vDateValueCheck = mMonth+strSeperator+mDay+strSeperator+mYear;
                  
                  // Store the new value back to the field.  This function will
                  // not work with date type of 2 since the year is entered first.
                  
                  if (vDateTypeTemp == 1) // mm/dd/yyyy
                     vDateName.value = mMonth+strSeperator+mDay+strSeperator+mYear;
                  if (vDateTypeTemp == 3) // dd/mm/yyyy
                     vDateName.value = mDay+strSeperator+mMonth+strSeperator+mYear;

               } 
               
               
               if (!dateValid(vDateValueCheck))  
               {
                  alert("Invalid Date\nPlease Re-Enter");
                  vDateType = vDateTypeTemp;
            //      vDateName.value = "";
                  vDateName.focus();
                  return true;
		         }
               vDateType = vDateTypeTemp;
               return true;
            
            }
            else
            {
               
               if (vDateType == 1)
               {
                  if (vDateValue.length == 2)  
                  {
                     vDateName.value = vDateValue+strSeperator;
                  }
                  if (vDateValue.length == 5)  
                  {
                     vDateName.value = vDateValue+strSeperator;
                  }
               }
               if (vDateType == 2)
               {
                  if (vDateValue.length == 4)  
                  {
                     vDateName.value = vDateValue+strSeperator;
                  }
                  if (vDateValue.length == 7)  
                  {
                     vDateName.value = vDateValue+strSeperator;
                  }
               } 
               if (vDateType == 3)
               {
                  if (vDateValue.length == 2)  
                  {
                     vDateName.value = vDateValue+strSeperator;
                  }
                  if (vDateValue.length == 5)  
                  {
                     vDateName.value = vDateValue+strSeperator;
                  }
               }
               return true;
            }
         }
         if (vDateValue.length == 10   && dateCheck)  
         {
            if (!dateValid(vDateName))  
            {
// Un-comment the next line of code for debugging the dateValid() function error messages
//               alert(err);  
               alert("Invalid Date\nPlease Re-Enter");
               vDateName.focus();
               vDateName.select();
	         }
         }
         return false;
      }
      else  
      {
         // If the value is not in the string return the string minus the last
         // key entered.
         if (isNav4)
         {
       //     vDateName.value = "";
            vDateName.focus();
            vDateName.select();
            return false;
         }
         else
         {
            vDateName.value = vDateName.value.substr(0, (vDateValue.length-1));
            return false;
         }
		}
	}
}


   function dateValid(objName) {
      var strDate;
      var strDateArray;
      var strDay;
      var strMonth;
      var strYear;
      var intday;
      var intMonth;
      var intYear;
      var booFound = false;
      var datefield = objName;
      var strSeparatorArray = new Array("-"," ","/",".");
      var intElementNr;
      // var err = 0;
      var strMonthArray = new Array(12);
      strMonthArray[0] = "Jan";
      strMonthArray[1] = "Feb";
      strMonthArray[2] = "Mar";
      strMonthArray[3] = "Apr";
      strMonthArray[4] = "May";
      strMonthArray[5] = "Jun";
      strMonthArray[6] = "Jul";
      strMonthArray[7] = "Aug";
      strMonthArray[8] = "Sep";
      strMonthArray[9] = "Oct";
      strMonthArray[10] = "Nov";
      strMonthArray[11] = "Dec";
      
      //strDate = datefield.value;
      strDate = objName;
      
      if (strDate.length < 1) {
         return true;
      }
      for (intElementNr = 0; intElementNr < strSeparatorArray.length; intElementNr++) {
         if (strDate.indexOf(strSeparatorArray[intElementNr]) != -1) 
         {
            strDateArray = strDate.split(strSeparatorArray[intElementNr]);
            if (strDateArray.length != 3) 
            {
               err = 1;
               return false;
            }
            else 
            {
               strDay = strDateArray[0];
               strMonth = strDateArray[1];
               strYear = strDateArray[2];
            }
            booFound = true;
         }
      }
      if (booFound == false) {
         if (strDate.length>5) {
            strDay = strDate.substr(0, 2);
            strMonth = strDate.substr(2, 2);
            strYear = strDate.substr(4);
         }
      }
      //Adjustment for short years entered
      if (strYear.length == 2) {
         strYear = '20' + strYear;
      }
      strTemp = strDay;
      strDay = strMonth;
      strMonth = strTemp;
      intday = parseInt(strDay, 10);
      if (isNaN(intday)) {
         err = 2;
         return false;
      }
      
      intMonth = parseInt(strMonth, 10);
      if (isNaN(intMonth)) {
         for (i = 0;i<12;i++) {
            if (strMonth.toUpperCase() == strMonthArray[i].toUpperCase()) {
               intMonth = i+1;
               strMonth = strMonthArray[i];
               i = 12;
            }
         }
         if (isNaN(intMonth)) {
            err = 3;
            return false;
         }
      }
      intYear = parseInt(strYear, 10);
      if (isNaN(intYear)) {
         err = 4;
         return false;
      }
      if (intMonth>12 || intMonth<1) {
         err = 5;
         return false;
      }
      if ((intMonth == 1 || intMonth == 3 || intMonth == 5 || intMonth == 7 || intMonth == 8 || intMonth == 10 || intMonth == 12) && (intday > 31 || intday < 1)) {
         err = 6;
         return false;
      }
      if ((intMonth == 4 || intMonth == 6 || intMonth == 9 || intMonth == 11) && (intday > 30 || intday < 1)) {
         err = 7;
         return false;
      }
      if (intMonth == 2) {
         if (intday < 1) {
            err = 8;
            return false;
         }
         if (LeapYear(intYear) == true) {
            if (intday > 29) {
               err = 9;
               return false;
            }
         }
         else {
            if (intday > 28) {
               err = 10;
               return false;
            }
         }
      }
         return true;
      }

   function LeapYear(intYear) {
      if (intYear % 100 == 0) {
         if (intYear % 400 == 0) { return true; }
      }
      else {
         if ((intYear % 4) == 0) { return true; }
      }
         return false;
      }
//  End -->