function chkdate(objName) {

	var strDatestyle = "US"; //United States date style
	//var strDatestyle = "EU";  //European date style
	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] = "March";
	strMonthArray[3] = "Apr";
	strMonthArray[4] = "May";
	strMonthArray[5] = "June";
	strMonthArray[6] = "July";
	strMonthArray[7] = "Aug";
	strMonthArray[8] = "Sept";
	strMonthArray[9] = "Oct";
	strMonthArray[10] = "Nov";
	strMonthArray[11] = "Dec";
	strDate = datefield.value;
	
	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);
   		}
	}

	if (strYear.length == 2) {
		strYear = '20' + strYear;
	}


	// US style
	if (strDatestyle == "US") {
		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;
			}
		}
	}

	if (strDatestyle == "US") {
		datefield.value = strMonthArray[intMonth-1] + " " + intday+" " + strYear;
	}
	else {
		datefield.value = intday + " " + strMonthArray[intMonth-1] + " " + strYear;
	}

	return true;
}

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

function matchDay(strDay, adate) {

	dateIn = new Date(adate);
	weekday = dateIn.getDay();

	var strDayArray = new Array(7);
	
	strDayArray[0] = "Sunday";
	strDayArray[1] = "Monday";
	strDayArray[2] = "Tuesday";
	strDayArray[3] = "Wednesday";
	strDayArray[4] = "Thursday";
	strDayArray[5] = "Friday";
	strDayArray[6] = "Saturday";

	for (var i = 0;i<7;i++) {
		if (strDay.toUpperCase() == strDayArray[i].toUpperCase()) {
			if (weekday == i){
				return true;
			}
			else
			{
				return false;
			}
		}
	}

	return false;
}

	function postCurrent(adate) {

		dateIn = new Date(adate);
		curDate = new Date();
	
		curDate.setDate(curDate.getDate() + 1);
	
		if (dateIn < curDate) {
	
			return false;
		}
		else
		{
			return true;
		}
	
	}
	
	function dayOfWeek(adate) {

	dateIn = new Date(adate);
	weekday = dateIn.getDay();

	var strDayArray = new Array(7);
	
	strDayArray[0] = "Sunday";
	strDayArray[1] = "Monday";
	strDayArray[2] = "Tuesday";
	strDayArray[3] = "Wednesday";
	strDayArray[4] = "Thursday";
	strDayArray[5] = "Friday";
	strDayArray[6] = "Saturday";

	for (var i = 0;i<7;i++) {
		if (weekday == i){
			return strDayArray[i];
		}
	}
}