function trim(strText) { 
    // this will get rid of leading spaces 
    while (strText.substring(0,1) == ' ') 
        strText = strText.substring(1, strText.length);

    // this will get rid of trailing spaces 
    while (strText.substring(strText.length-1,strText.length) == ' ')
        strText = strText.substring(0, strText.length-1);

   return strText;
} 
function CheckRange(NumericField, LowerValue, UpperValue, NumericLabel)
{
	if(!CheckLowerRange(NumericField, LowerValue, NumericLabel))
	{
		return false;
	}
	if(!CheckUpperRange(NumericField, UpperValue, NumericLabel))
	{
		return false;
	}
	return true;
}
function CheckUpperRange(NumericField, UpperValue, NumericLabel)
{
	if(NumericField.value > UpperValue)
	{
		alert(NumericLabel + " value exceeds the expected value.\nPlease enter a smaller value.");
		NumericField.select();
		NumericField.focus();
		return false;
	}
	return true;
}
function CheckLowerRange(NumericField, LowerValue, NumericLabel)
{
	if(NumericField.value < LowerValue)
	{
		alert(NumericLabel + " value cannot be less than " + LowerValue + ".");
		NumericField.select();
		NumericField.focus();
		return false;
	}
	return true;
}

//This Function is Used for Normal TextFields
function IsEntered(InputField,InputLabel)
{
	InputField.value = trim(InputField.value);	
	if(InputField.value == "")
	{
		alert(InputLabel + " is Required.");
		InputField.focus();
		return false;
	}
	return true;
}

//This Function is Used for Combo Boxes (Select List)
function IsSelected(InputField,InputLabel)
{
	if(InputField.options[InputField.selectedIndex].value == "")
	{
		alert("Please Select " + InputLabel + ".");
		InputField.focus();
		return false;
	}
	return true;
}
function IsValidString(InputField,InputLabel) 
{
	var string = InputField.value;

	//Dicounting comma, since its required in exchange name...
	var iChars = "*|\":<>[]{}`;()@&$#%";
	for (var i = 0; i < string.length; i++) 
	{
		if (iChars.indexOf(string.charAt(i)) != -1)
		{
			alert("Please enter only valid Characters in " + InputLabel);
			InputField.focus();
			return false;
		}
	}
	return true;
} 


function IsValidEmail(checkThisEmail,EmailLabel)
{
	var IsValid = true
	if(checkThisEmail.value == "")
	{
		return IsValid;
	}
	var AtSymbolAt = checkThisEmail.value.indexOf('@')
	var LastDotAt = checkThisEmail.value.lastIndexOf('.')
	var SpaceAt = checkThisEmail.value.indexOf(' ')
	var Length = checkThisEmail.value.length

	
	if (AtSymbolAt < 1 ) 
	{
		IsValid = false
	}


	if (LastDotAt < AtSymbolAt) 
	{
		IsValid = false
	}

	if (Length - LastDotAt <= 2) 
	{
		IsValid = false
	}

	if (SpaceAt != -1) 
	{
		IsValid = false
	}
	if(!IsValid)
	{
		alert("Please Enter a valid value for " + EmailLabel + ".");
		checkThisEmail.select();
		checkThisEmail.focus();
		return false;
	}
	return true;
}

function LimitLength(txtField, iLength)
{
		
	if (txtField.value.length > iLength)
		txtField.value = txtField.value.substring(0, iLength);
}

function IsNumeric(InputField,InputLabel)
{
	if (isNaN(InputField.value))
	{
		alert("Please enter a valid value for " + InputLabel + ".");
		InputField.select();
		InputField.focus();
		return false;
	}
	return true;
}

function OpenDateControl(imageURL, dtText) 
{
	dtValue = new Date(dtText.value);
	tmpStr = '&YEAR='+dtValue.getYear()+'&MONTH='+(dtValue.getMonth()+1);
	myWin1= window.open(imageURL+tmpStr, "myWin", "width=240,height=200,top=290,left=440,status=no,toolbar=no,resizable=yes,menubar=no");
} 


// Date Validations  -----------------------
function checkdate(objName, objLabel) 
{
/*	var datefield = objName;
	Not allowing any characters other than numbers and 
	var dteString = datefield.value;
	var iChars = "1234567890/";
	for (var i = 0; i < dteString.length; i++) 
	{
		if (iChars.indexOf(dteString.charAt(i)) == -1)
		{
			alert("Please Enter a valid value for " + objLabel + ".");
			datefield.select();
			datefield.focus();
			return false;
		}
	} */
	
	var datefield = objName;
	if (chkdate(objName) == false) 
	{
		alert("Please Enter a valid value for " + objLabel + ".");
		datefield.select();
		datefield.focus();
		return false;
	}
	else 
	{
		return true;
	}

}

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 check = 0;
	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;
	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];
			}
				check = 1;
				booFound = true;
		}
	}
	if (booFound == false) 
	{
		if (strDate.length>5) 
		{
			strDay = strDate.substr(0, 2);
			strMonth = strDate.substr(2, 2);
			strYear = strDate.substr(4);
		}
	}
	if (check == 0)
	{
		return false;
	}
	if (strYear.length == 2) 
	{
		strYear = '20' + strYear;
	}
	
	if(strYear > 9999)
	{
		return false;
	}
	
	// US style
	if (strDatestyle == "US") 
	{
		strTemp = strDay;
		strDay = strMonth;
		strMonth = strTemp;
	}
//	intday = parseInt(strDay, 10);
	intday = strDay;
	if (isNaN(intday)) 
	{
		err = 2;
		return false;
	}
//	intMonth = parseInt(strMonth, 10);
	intMonth = strMonth;
	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);
	intYear = strYear;
	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 CompareDates(StartObj, EndObj, StartObjLabel, EndObjLabel)
{
	var intElementNr;
	var strStartDateArray;
	var strEndDateArray;
	var strSDay;
	var strSMonth;
	var strSYear;
	var strEDay;
	var strEMonth;
	var strEYear;
	var booFound;
	var Startdatefield = StartObj.value;
	var Enddatefield = EndObj.value;
	var strSeparatorArray = new Array("-"," ","/",".");
	for (intElementNr = 0; intElementNr < strSeparatorArray.length; intElementNr++) 
	{
		if (Startdatefield.indexOf(strSeparatorArray[intElementNr]) != -1) 
		{
			strStartDateArray = Startdatefield.split(strSeparatorArray[intElementNr]);
			if (strStartDateArray.length != 3) 
			{
				err = 1;
				return false;
			}
			else 
			{
				strSMonth = parseInt(strStartDateArray[0], 10);
				strSDay = parseInt(strStartDateArray[1], 10);
				strSYear = parseInt(strStartDateArray[2], 10);
			}
				booFound = true;
		}
		if (Enddatefield.indexOf(strSeparatorArray[intElementNr]) != -1) 
		{
			strEndDateArray = Enddatefield.split(strSeparatorArray[intElementNr]);
			if (strEndDateArray.length != 3) 
			{
				err = 1;
				return false;
			}
			else 
			{
				strEMonth = parseInt(strEndDateArray[0], 10);
				strEDay = parseInt(strEndDateArray[1], 10);
				strEYear = parseInt(strEndDateArray[2], 10);
			}
				booFound = true;
		}
	}
	if ((strEYear < strSYear) || ((strEMonth < strSMonth) && (strEYear == strSYear)) || ((strEDay < strSDay) && (strEMonth == strSMonth) && (strEYear == strSYear)))
	{
		EndObj.select();
		alert (EndObjLabel + " cannot be smaller than " + StartObjLabel + ".");
		EndObj.focus();
		return(false);
	}
	else
	{
		return(true);
	}
}

function comparetime(StartObj, EndObj, starthr, startmin, endhr, endmin)
{
	var intElementNr;
	var strStartDateArray;
	var strEndDateArray;
	var strSDay;
	var strSMonth;
	var strSYear;
	var strEDay;
	var strEMonth;
	var strEYear;
	var booFound;
	var Startdatefield = StartObj.value;
	var Enddatefield = EndObj.value;
	var shr = starthr.value;
	var smin = startmin.value;
	var ehr = endhr.value;
	var emin = endmin.value;
	var strSeparatorArray = new Array("-"," ","/",".");
	for (intElementNr = 0; intElementNr < strSeparatorArray.length; intElementNr++) 
	{
		if (Startdatefield.indexOf(strSeparatorArray[intElementNr]) != -1) 
		{
			strStartDateArray = Startdatefield.split(strSeparatorArray[intElementNr]);
			if (strStartDateArray.length != 3) 
			{
				err = 1;
				return false;
			}
			else 
			{
				strSMonth = parseInt(strStartDateArray[0], 10);
				strSDay = parseInt(strStartDateArray[1], 10);
				strSYear = parseInt(strStartDateArray[2], 10);
			}
				booFound = true;
		}
		if (Enddatefield.indexOf(strSeparatorArray[intElementNr]) != -1) 
		{
			strEndDateArray = Enddatefield.split(strSeparatorArray[intElementNr]);
			if (strEndDateArray.length != 3) 
			{
				err = 1;
				return false;
			}
			else 
			{
				strEMonth = parseInt(strEndDateArray[0], 10);
				strEDay = parseInt(strEndDateArray[1], 10);
				strEYear = parseInt(strEndDateArray[2], 10);
			}
				booFound = true;
		}
	}
	if ((strEDay == strSDay) && (strEMonth == strSMonth) && (strEYear == strSYear))
	{
		if (ehr < shr)
		{
			alert ("To time is lesser than From time.");
			endhr.focus();
			return(false);
		}
		else if ((emin < smin) && (shr == ehr))
		{
			alert ("To time is lesser than From time.");
			endmin.focus();
			return(false);
		}
		else if ((emin == smin) && (shr == ehr))
		{
			alert ("Starting time and Ending time are same.");
			endmin.focus();
			return(false);
		}
		else
		{
			return(true);
		}
	}
	else
	{
		return(true);
	}
}
function comparetimeNow(StartObj, EndObj, starthr, startmin, endhr, endmin)
{
	var intElementNr;
	var strStartDateArray;
	var strEndDateArray;
	var strSDay;
	var strSMonth;
	var strSYear;
	var strEDay;
	var strEMonth;
	var strEYear;
	var booFound;
	var Startdatefield = StartObj.value;
	var Enddatefield = EndObj.value;
	var shr = starthr;
	var smin = startmin;
	var ehr = endhr.value;
	var emin = endmin.value;
	var strSeparatorArray = new Array("-"," ","/",".");
	for (intElementNr = 0; intElementNr < strSeparatorArray.length; intElementNr++) 
	{
		if (Startdatefield.indexOf(strSeparatorArray[intElementNr]) != -1) 
		{
			strStartDateArray = Startdatefield.split(strSeparatorArray[intElementNr]);
			if (strStartDateArray.length != 3) 
			{
				err = 1;
				return false;
			}
			else 
			{
				strSMonth = parseInt(strStartDateArray[0], 10);
				strSDay = parseInt(strStartDateArray[1], 10);
				strSYear = parseInt(strStartDateArray[2], 10);
			}
				booFound = true;
		}
		if (Enddatefield.indexOf(strSeparatorArray[intElementNr]) != -1) 
		{
			strEndDateArray = Enddatefield.split(strSeparatorArray[intElementNr]);
			if (strEndDateArray.length != 3) 
			{
				err = 1;
				return false;
			}
			else 
			{
				strEMonth = parseInt(strEndDateArray[0], 10);
				strEDay = parseInt(strEndDateArray[1], 10);
				strEYear = parseInt(strEndDateArray[2], 10);
			}
				booFound = true;
		}
	}
	if ((strEDay == strSDay) && (strEMonth == strSMonth) && (strEYear == strSYear))
	{
		if (ehr < shr)
		{
			alert ("To time is lesser than Current Time.");
			endhr.focus();
			return(false);
		}
		else if ((emin < smin) && (shr == ehr))
		{
			alert ("To time is lesser than Current Time.");
			endmin.focus();
			return(false);
		}
		else if ((emin == smin) && (shr == ehr))
		{
			alert ("Current Time and Ending time are same.");
			endmin.focus();
			return(false);
		}
		else
		{
			return(true);
		}
	}
	else
	{
		return(true);
	}
}


function isEmpty(inputStr) {
  if (inputStr == "" || inputStr == null) {
    return true
  }
  return false
}

// function to determine if value is in acceptable range 
//for this application
function inRange(inputStr, lo, hi) {
  var num = parseInt(inputStr, 10)
  if (num < lo || num > hi) {
    return false
  }
  return true
}

function validateMonth(fieldvalue) {
  var input = fieldvalue
  if (isEmpty(input)) {
    return false
  } else {
    input = parseInt(fieldvalue, 10)
    if (isNaN(input)) {
      return false
    } else {
      if (!inRange(input,1,12)) {
         return false
      }
    }
  }
  return true
}

function validateYear(fieldvalue) {
  var input = fieldvalue
  if (isEmpty(input)) {
    return false
  } else {
    input = parseInt(fieldvalue, 10)
    if (isNaN(input)) {
      return false
    } else {
      if (!inRange(input,1900,2100)) {
        return false
      }
    }
  }
  return true
}

function select(field) {
  field.focus()
  field.select()
}