function trim(sString) 
{ 
  sTrimmedString = ""; 
   if (sString != "") 
   { 
	  var iStart = 0; 
	  var iEnd = sString.length - 1; 
	  var sWhitespace = " \t\f\n\r"; 
	  
	  while (sWhitespace.indexOf(sString.charAt(iStart)) != -1) 
	  { 
		 iStart++; 
		 if (iStart > iEnd) 
			break; 
	  } 
	  
	  // If the string not just whitespace 
	  if (iStart <= iEnd) 
	  { 
		 while (sWhitespace.indexOf(sString.charAt(iEnd)) != -1) 
			iEnd--; 
		   sTrimmedString = sString.substring(iStart,++iEnd); 
	  } 
   } 
   return sTrimmedString; 
} 

function CheckEmail(emailStr)
{
	//Checking For valid email

	var emailPat=/^(.+)@(.+)$/
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
	var validChars="\[^\\s" + specialChars + "\]"
	var quotedUser="(\"[^\"]*\")"
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
	var atom=validChars + '+'
	var word="(" + atom + "|" + quotedUser + ")"
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
	var matchArray=emailStr.match(emailPat)

	if (matchArray==null)
	{
		alert("The email doesn't seem to be valid.")
		return false
	}

	var user=matchArray[1]
	var domain=matchArray[2]

	if (user.match(userPat)==null)
	{
		// user is not valid
		alert("The email doesn't seem to be valid.")
		return false
	}

	var IPArray=domain.match(ipDomainPat)

	if (IPArray!=null) 
	{
		for (var i=1;i<=4;i++)
		{
			if (IPArray[i]>255) 
			{	
				alert("Destination IP address is invalid!")
				return false
			}
		}		
	}
	var domainArray=domain.match(domainPat)

	if (domainArray==null)
	{
		alert("The domain name doesn't seem to be valid.")
		return false
	}
	var domainstr;
	domainstr= emailStr.split(".");

	if(domainstr.length == 3)
	{
		if(domainstr[2] == 'ne' || domainstr[2] == 'co' || domainstr[2] == 'ed'|| domainstr[2] == 'or' || domainstr[2] == 'bi' || domainstr[2] == 'mi' || domainstr[2] == 'go')
		{
			alert("The domain name doesn't seem to be valid.")
			return false
		}
	}
	if(domainstr.length == 2)
	{
		if(domainstr[1] == 'ne' || domainstr[1] == 'co' || domainstr[1] == 'ed'|| domainstr[1] == 'or' || domainstr[1] == 'bi' || domainstr[1] == 'mi' || domainstr[1] == 'go')
		{
			alert("The domain name doesn't seem to be valid.")
			return false
		}
	}
	var atomPat=new RegExp(atom,"g")
	var domArr=domain.match(atomPat)
	var len=domArr.length
		
	if (domArr[domArr.length-1].length<2 || domArr[domArr.length-1].length>4) 
	{
		alert("The address must end in a three-letter domain, or two letter country.")
		return false
	}

	if (len<2)
	{
		var errStr="This address is missing a hostname!"
		alert(errStr)
		return false
	}
	return true
}

// VARIABLE DECLARATIONS

var digits = "0123456789";

var lowercaseLetters = "abcdefghijklmnopqrstuvwxyz"

var uppercaseLetters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"


// whitespace characters
var whitespace = " \t\n\r";


// decimal point character differs by language and culture
var decimalPointDelimiter = "."


// non-digit characters which are allowed in phone numbers
var phoneNumberDelimiters = "()- ";


// characters which are allowed in US phone numbers
var validUSPhoneChars = digits + phoneNumberDelimiters;


// characters which are allowed in international phone numbers
// (a leading + is OK)
var validWorldPhoneChars = digits + phoneNumberDelimiters + "+";


// non-digit characters which are allowed in 
// Social Security Numbers
var SSNDelimiters = "- ";



// characters which are allowed in Social Security Numbers
var validSSNChars = digits + SSNDelimiters;



// U.S. Social Security Numbers have 9 digits.
// They are formatted as 123-45-6789.
var digitsInSocialSecurityNumber = 9;



// U.S. phone numbers have 10 digits.
// They are formatted as 123 456 7890 or (123) 456-7890.
var digitsInUSPhoneNumber = 10;



// non-digit characters which are allowed in ZIP Codes
var ZIPCodeDelimiters = "-";



// our preferred delimiter for reformatting ZIP Codes
var ZIPCodeDelimeter = "-"


// characters which are allowed in Social Security Numbers
var validZIPCodeChars = digits + ZIPCodeDelimiters



// U.S. ZIP codes have 5 or 9 digits.
// They are formatted as 12345 or 12345-6789.
var digitsInZIPCode1 = 5
var digitsInZIPCode2 = 9


// non-digit characters which are allowed in credit card numbers
var creditCardDelimiters = " "


// CONSTANT STRING DECLARATIONS
// (grouped for ease of translation and localization)

// 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."

// s is an abbreviation for "string"

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"




// i is an abbreviation for "invalid"

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."



// p is an abbreviation for "prompt"

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




// Attempting to make this library run on Navigator 2.0,
// so I'm supplying this array creation routine as per
// JavaScript 1.0 documentation.  If you're using 
// Navigator 3.0 or later, you don't need to do this;
// you can use the Array constructor instead.

function makeArray(n) {
//*** BUG: If I put this line in, I get two error messages:
//(1) Window.length can't be set by assignment
//(2) daysInMonth has no property indexed by 4
//If I leave it out, the code works fine.
//   this.length = 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;