// VARIABLE DECLARATIONS

var digits = "0123456789";

var lowercaseLetters = "abcdefghijklmnopqrstuvwxyz"

var uppercaseLetters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"


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

// Global variable defaultEmptyOK defines default return value 
// for many functions when they are passed the empty string. 
// By default, they will return defaultEmptyOK.
//
// defaultEmptyOK is false, which means that by default, 
// these functions will do "strict" validation.  Function
// isInteger, for example, will only return true if it is
// passed a string containing an integer; if it is passed
// the empty string, it will return false.
//
// You can change this default behavior globally (for all 
// functions which use defaultEmptyOK) by changing the value
// of defaultEmptyOK.
//
// Most of these functions have an optional argument emptyOK
// which allows you to override the default behavior for 
// the duration of a function call.
//
// This functionality is useful because it is possible to
// say "if the user puts anything in this field, it must
// be an integer (or a phone number, or a string, etc.), 
// but it's OK to leave the field empty too."
// This is the case for fields which are optional but which
// must have a certain kind of content if filled in.

var defaultEmptyOK = false

// 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."



// 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;

    // Search through string's characters one by one
    // until we find a non-whitespace character.
    // When we do, return false; if we don't, 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;
}


// Returns true if character c is an English letter 
// (A .. Z, a..z).
//
// NOTE: Need i18n version to support European characters.
// This could be tricky due to different character
// sets and orderings for various languages and platforms.

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"))
}



// Returns true if character c is a letter or digit.

function isLetterOrDigit (c)
{   return (isLetter(c) || isDigit(c))
}


// isInteger (STRING s [, BOOLEAN emptyOK])
// 
// Returns true if all characters in string s are numbers.
//
// Accepts non-signed integers only. Does not accept floating 
// point, exponential notation, etc.
//
// We don't use parseInt because that would accept a string
// with trailing non-numeric characters.
//
// By default, returns defaultEmptyOK if s is empty.
// There is an optional second argument called emptyOK.
// emptyOK is used to override for a single function call
//      the default behavior which is specified globally by
//      defaultEmptyOK.
// If emptyOK is false (or any value other than true), 
//      the function will return false if s is empty.
// If emptyOK is true, the function will return true if s is empty.
//
// EXAMPLE FUNCTION CALL:     RESULT:
// isInteger ("5")            true 
// isInteger ("")             defaultEmptyOK
// isInteger ("-5")           false
// isInteger ("", true)       true
// isInteger ("", false)      false
// isInteger ("5", false)     true


function isInteger (s)

{   var i;

    if (isEmpty(s)) 
       if (isInteger.arguments.length == 1) return defaultEmptyOK;
       else return (isInteger.arguments[1] == true);

    // Search through string's characters one by one
    // until we find a non-numeric character.
    // When we do, return false; if we don't, return 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))
    }
}



// isPositiveInteger (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 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 isFloat(n)
{
	var Ok = false;
	var firstOk = true;
	//Detects Float
	if(parseFloat(n).toString() =="NaN")
	{
		return false;
	}
	
	for(i=0;i<n.length;i++)
	{
		if(parseInt((n.substr(i,1))).toString()!='NaN')
		{
			Ok=true;
			//alert(parseInt((n.substr(i,1))));
		}
		else	
		{
			if(firstOk)
			{
				if(n.substr(i,1)==".")
				{
					Ok=true;
					firstOk=false;
				}
				else
				{
					return false;
				}
			}
			else
			{
				return false;
			}
		}
	}
	return true;
}


// isNonnegativeInteger (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 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) ) );
}


// isNonpositiveInteger (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 isNonpositiveInteger (s)
{   var secondArg = defaultEmptyOK;

    if (isNonpositiveInteger.arguments.length > 1)
        secondArg = isNonpositiveInteger.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) ) );
}



// isAlphabetic (STRING s [, BOOLEAN emptyOK])
// 
// Returns true if string s is English letters 
// (A .. Z, a..z) only.
//
// For explanation of optional argument emptyOK,
// see comments of function isInteger.
//
// NOTE: Need i18n version to support European characters.
// This could be tricky due to different character
// sets and orderings for various languages and platforms.

function isAlphabetic (s)
{   var i;
    if (isEmpty(s)) 
       if (isAlphabetic.arguments.length == 1) return defaultEmptyOK;
       else return (isAlphabetic.arguments[1] == true);

    // Search through string's characters one by one
    // until we find a non-alphabetic character.
    // When we do, return false; if we don't, return 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;
}



// isAlphanumeric (STRING s [, BOOLEAN emptyOK])
// 
// Returns true if string s is English letters 
// (A .. Z, a..z) and numbers only.
//
// For explanation of optional argument emptyOK,
// see comments of function isInteger.
//
// NOTE: Need i18n version to support European characters.
// This could be tricky due to different character
// sets and orderings for various languages and platforms.

function isAlphanumeric (s)
{   var i;

    if (isEmpty(s)) 
       if (isAlphanumeric.arguments.length == 1) return defaultEmptyOK;
       else return (isAlphanumeric.arguments[1] == true);

    // Search through string's characters one by one
    // until we find a non-alphanumeric character.
    // When we do, return false; if we don't, return 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;
}




//-- isAnumuscore function
// Returns true if 
//string s is English letters 
// (A .. Z, a..z) and numbers 
// and if contain underscore only


function isAnumuscore (s)
{   var i;

    if (isEmpty(s)) 
       if (isAnumuscore.arguments.length == 1) return defaultEmptyOK;
       else return (isAnumuscore.arguments[1] == true);

    // Search through string's characters one by one
    // until we find a non-alphanumeric character.
    // When we do, return false; if we don't, return 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) || c=="_") ))
        return false;
    }

    // All characters are numbers or letters.
    return true;
}


//-- isZip function
// Returns true if 
// String s is Digit 
// Contains numbers, desh or space only

function isZip (s)
{   var i;

    if (isEmpty(s)) 
       if (isZip.arguments.length == 1) return defaultEmptyOK;
       else return (isZip.arguments[1] == true);

    // Search through string's characters one by one
    // until we find a alphanumeric character.
    // When we do, return false; if we don't, return true.

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

        if ((! (isDigit(c) || c=="-"  || c==" " || c=="") ))
        return false;
    }

    // All characters are numbers or desh or space.
    return true;
}



// isEmail (STRING s [, BOOLEAN emptyOK])
// 
// Email address must be of form a@b.c -- in other words:
// * there must be at least one character before the @
// * there must be at least one character before and after the .
// * the characters @ and . are both required
//
// For explanation of optional argument emptyOK,
// see comments of function isInteger.

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;

//alert(s.length);
//Allow empty email address, because email address is not compulsory
if (s.length==0) return true;

    // 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;
}



// isYear (STRING s [, BOOLEAN emptyOK])
// 
// isYear returns true if string s is a valid 
// Year number.  Must be 2 or 4 digits only.
// 
// For Year 2000 compliance, you are advised
// to use 4-digit year numbers everywhere.
//
// And yes, this function is not Year 10000 compliant, but 
// because I am giving you 8003 years of advance notice,
// I don't feel very guilty about this ...
//
// For B.C. compliance, write your own function. ;->
//
// For explanation of optional argument emptyOK,
// see comments of function isInteger.

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));
    return (s.length == 4);
}



// isIntegerInRange (STRING s, INTEGER a, INTEGER b [, BOOLEAN emptyOK])
// 
// isIntegerInRange returns true if string s is an integer 
// within the range of integer arguments a and b, inclusive.
// 
// For explanation of optional argument emptyOK,
// see comments of function isInteger.


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;

    // Now, explicitly change the type to integer via parseInt
    // so that the comparison code below will work both on 
    // JavaScript 1.2 (which typechecks in equality comparisons)
    // and JavaScript 1.1 and before (which doesn't).
    var num = parseInt (s);
    return ((num >= a) && (num <= b));
}



// isMonth (STRING s [, BOOLEAN emptyOK])
// 
// isMonth returns true if string s is a valid 
// month number between 1 and 12.
//
// For explanation of optional argument emptyOK,
// see comments of function isInteger.

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 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;




// isDay (STRING s [, BOOLEAN emptyOK])
// 
// isDay returns true if string s is a valid 
// day number between 1 and 31.
// 
// For explanation of optional argument emptyOK,
// see comments of function isInteger.

function isDay (s)
{   if (isEmpty(s)) 
       if (isDay.arguments.length == 1) return defaultEmptyOK;
       else return (isDay.arguments[1] == true);   
    return isIntegerInRange (s, 1, 31);
}



// daysInFebruary (INTEGER year)
// 
// Given integer argument year,
// returns number of days in February of that year.

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 );
}



// isDate (STRING year, STRING month, STRING day)
//
// isDate returns true if string arguments year, month, and day 
// form a valid date.
// 

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;
}


// Birthdate
function isBDate (year, month, day)
{   // catch invalid years (not 2- or 4-digit) and invalid months and days.

var now     = new Date()
var tmonth   = (now.getMonth()+1)
var tyear    = now.getYear()
var tdate    = now.getDate()

    if (! (isYear(year, false) && isMonth(month, false) && isDay(day, false) && (year < tyear)))  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;
}


//Anniversary Date
function isADate (year, month, day)
{   // catch invalid years (not 2- or 4-digit) and invalid months and days.

var now     = new Date()
var tmonth   = (now.getMonth()+1)
var tyear    = now.getYear()
var tdate    = now.getDate()

    if (! (isYear(year, false) && isMonth(month, false) && isDay(day, false) && (year <= tyear) && (month<=tmonth)  && (day <=tdate)))  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;
}

// Notify user that required field theField is empty.
// String s describes expected contents of theField.value.
// Put focus in theField and return false.

function warnEmpty (theField, s)
{   theField.focus()
    alert(mPrefix + s + mSuffix)
    return false
}


/* FUNCTIONS TO INTERACTIVELY CHECK VARIOUS FIELDS. */

// checkString (TEXTFIELD theField, STRING s, [, BOOLEAN emptyOK==false])
//
// Check that string theField.value is not all whitespace.
//
// For explanation of optional argument emptyOK,
// see comments of function isInteger.

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;
}

// checkEmail (TEXTFIELD theField [, BOOLEAN emptyOK==false])
//
// Check that string theField.value is a valid Email.
//
// For explanation of optional argument emptyOK,
// see comments of function isInteger.

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;
}

// Check that string theField.value is a valid Year.
//
// For explanation of optional argument emptyOK,
// see comments of function isInteger.

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;
}


// Check that string theField.value is a valid Month.
//
// For explanation of optional argument emptyOK,
// see comments of function isInteger.

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;
}


// Check that string theField.value is a valid Day.
//
// For explanation of optional argument emptyOK,
// see comments of function isInteger.

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;
}



// checkDate (yearField, monthField, dayField, STRING labelString [, OKtoOmitDay==false])
//
// Check that yearField.value, monthField.value, and dayField.value 
// form a valid date.
//
// If they don't, labelString (the name of the date, like "Birth Date")
// is displayed to tell the user which date field is invalid.
//
// If it is OK for the day field to be empty, set optional argument
// OKtoOmitDay to true.  It defaults to false.

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
}

// FUNCTION : datevalidate - valid and not null date
function datevalidate(fprefix,formname)
{

	elmdd = formname[fprefix + 'dd'];
	elmmm = formname[fprefix + 'mm'];
	elmyy = formname[fprefix + 'yy'];

	valdd = elmdd.value;
	valmm = elmmm.value;
	valyy = elmyy.value;


// null checking (dd,mm,yy) //

	if(!isInteger(valdd) || isEmpty(valdd))
	{
		elmdd.value = '';
		elmdd.focus();
		return false;
	}

	if(!isInteger(valmm) || isEmpty(valmm))
	{
		elmmm.value = '';
		elmmm.focus();
		return false;
	}

	if(!isInteger(valyy) || isEmpty(valyy))
	{
		elmyy.value = '';
		elmyy.focus();
		return false;
	}

	if(valyy.toString().length !=4)
	{
		elmyy.value = '';
		elmyy.focus();
		return false;
	}

	if(parseInt(valmm) > 12)
	{
		elmmm.focus();
		elmmm.select();
		alert("Invalid Month");
		return false;
	}

	valdd = parseInt(valdd);
	valmm = parseInt(valmm);
	valyy = parseInt(valyy);

	if ((valmm == 1) || (valmm == 3) || (valmm == 5) || (valmm == 7) || (valmm == 8) || (valmm == 10) || (valmm==12))
	{
		if (parseInt(valdd) > 31)
		{
			elmdd.focus();
			elmdd.select();
			alert("Invalid Days");return false;
		}
	}

	if ((valmm == 4) || (valmm == 6) || (valmm ==9) || (valmm == 11))
	{
		if (parseInt(valdd) > 30)
		{
			elmdd.focus();
			elmdd.select();
			alert("Invalid Day");return false;
		}
	}
	if(valmm==2)
	{
		var tday =daysInFebruary(valyy);
		if(valdd > tday)
		{
			elmdd.focus();
			elmdd.select();
			alert("Invalid Day");return false;
		}
	}
	return true;
}


// FUNCTION : datevalidate1 - valid but can be null date (not mandatory)
function datevalidate1(fprefix,formname)
{

	elmdd = formname[fprefix + 'dd'];
	elmmm = formname[fprefix + 'mm'];
	elmyy = formname[fprefix + 'yy'];

	valdd = elmdd.value;
	valmm = elmmm.value;
	valyy = elmyy.value;


// null checking (dd,mm,yy)

	if (isEmpty(valdd) && isEmpty(valmm) && isEmpty(valyy))
	{
		return true;
	}
	
	if (!isInteger(valdd) || isEmpty(valdd))
	{
		elmdd.value = '';
		elmdd.focus();
		return false;
	}

	if  (!isInteger(valmm) || isEmpty(valmm))
	{
		elmmm.value = '';
		elmmm.focus();
		return false;
	}

	if  (!isInteger(valyy) || isEmpty(valyy))
	{
		elmyy.value = '';
		elmyy.focus();
		return false;
	}

	if(valyy.toString().length !=4)
	{
		elmyy.value = '';
		elmyy.focus();
		return false;
	}

	if(parseInt(valmm) > 12)
	{
		elmmm.focus();
		elmmm.select();
		alert("Invalid Month");
		return false;
	}

	valdd = parseInt(valdd);
	valmm = parseInt(valmm);
	valyy = parseInt(valyy);

	if ((valmm == 1) || (valmm == 3) || (valmm == 5) || (valmm == 7) || (valmm == 8) || (valmm == 10) || (valmm==12))
	{
		if (parseInt(valdd) > 31)
		{
			elmdd.focus();
			elmdd.select();
			alert("Invalid Days");return false;
		}
	}

	if ((valmm == 4) || (valmm == 6) || (valmm ==9) || (valmm == 11))
	{
		if (parseInt(valdd) > 30)
		{
			elmdd.focus();
			elmdd.select();
			alert("Invalid Day");return false;
		}
	}

	if(valmm==2)
	{
		var tday =daysInFebruary(valyy);
		if(valdd > tday)
		{
			elmdd.focus();
			elmdd.select();
			alert("Invalid Day");return false;
		}
	}
	return true;
}


function datevalidatectrl(yy,mm,dd)
{

	elmdd=dd;
	elmyy=yy;
	elmmm=mm;

	valdd = dd.value;
	valmm = mm.value;
	valyy = yy.value;


	if(!isInteger(valdd) || isEmpty(valdd))
	{
		elmdd.value = '';
		elmdd.focus();
		return false;
	}

	if(!isInteger(valmm) || isEmpty(valmm))
	{
		elmmm.value = '';
		elmmm.focus();
		return false;
	}
	
	
	if(valyy.toString().length !=4)
	{
		elmyy.value = '';
		elmyy.focus();
		return false;
	}
	
	if(!isInteger(valyy) || isEmpty(valyy) )
	{
		elmyy.value = '';
		elmyy.focus();
		return false;
	}

	
	if(parseInt(valmm) > 12)
	{
		elmmm.focus();
		elmmm.select();
		alert("Invalid Month");
		return false;
	}

	valdd = parseInt(valdd);
	valmm = parseInt(valmm);
	valyy = parseInt(valyy);

	if ((valmm == 1) || (valmm == 3) || (valmm == 5) || (valmm == 7) || (valmm == 8) || (valmm == 10) || (valmm==12))
	{
		if (parseInt(valdd) > 31)
		{
			elmdd.focus();
			elmdd.select();
			alert("Invalid Day value in date");return false;
		}
	}

	if ((valmm == 4) || (valmm == 6) || (valmm ==9) || (valmm == 11))
	{
		if (parseInt(valdd) > 30)
		{
			elmdd.focus();
			elmdd.select();
			alert("Invalid Day value in date");return false;
		}
	}
	if(valmm==2)
	{
		var tday =daysInFebruary(valyy);
		if(valdd > tday)
		{
			elmdd.focus();
			elmdd.select();
			alert("Invalid Day value in date");return false;
		}
	}
	return true;
}


/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//this function is useful to find the Filename from the path which is passed as a argument as well as function is useful to find the 
// repeatation of character
//the function accepts the str as a argument
//str = this.value, setvalto=where to set the value in string data type for eg ('document.frmupl.small_img_url')
	function file_name(str,setvalto) {
		//the var k is assigned the character backslash \
		var k="\\"; 
		var pos;	

		// this loop will start from 0 to the end of str.length	
		for (var i=0;i<=str.length;i++) 
		{	//here the variable k is matching with the character of str
			//str.charAt(i) returns the character presented in the position of i
			if(k==str.charAt(i)) 
				{	
				//if k and the str character are matched then the value of i is given to pos variable	
				pos = i;
				}
				}	
			//pos variable is incremented by 1
			pos = pos + 1;	

			//here the substring method is used to return the file name by passing the value of pos and str length
			//alert("file name was  "+"<b>" + str.substring(pos,str.length))
			var t = eval(setvalto);
			t.value =  t.value + str.substring(pos,str.length);
			//document.write ("file name was  "+"<b>" + str.substring(pos,str.length))
		}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////