// --------------------- Email Verification Function ----------------------

//hemant use Email only field down to this page which includes alert box message

 function validEmail(emailid)

{

 

  var strEmail = emailid ;

  if(!validcharOnly(strEmail,"Email Address") )

  return false ; 

  if(strEmail.charAt(strEmail.length-1) == ".")

	return false ;

  for(i=0;i<strEmail.length-1;i++)

  {	

	if(strEmail.charAt(i) == " ")

		return false ;

  }

  pos = strEmail.search("@");

  if(pos != -1)

  {

	part = strEmail.slice(pos+1) ;

	flag = -1;

	pos = part.search("@") ;

	if(pos != -1)

		return false ;

	for(i=0;i<part.length;i++)

	{

		if(part.charAt(i)=='.')

		{	

			flag = 0 ;

			break;

		}

	}

	if(flag != -1)

		return(true) ;

	else

		return(false) ;

  }

  else

	return(false) ;

}



// --------------------- Number Verification Function ----------------------



function numberVerify(numbervalue)

{

	if(isNaN(numbervalue))

		return(false) ;	

	else

		return(true) ;

}



// --------------------- Phone No. Verification Function ----------------------



function phoneVerify(phonevalue)

{

	valid = "0123456789-()"

	phonevalue = allTrim(phonevalue) ;

	for(i=0;i<phonevalue.length;i++)

	{

		flag = 0 ;

		for(j=0;j<valid.length;j++)

		{

			if(phonevalue.charAt(i) == valid.charAt(j))

			{

				flag = 1 ;

				break ;

			}

		}

		if(flag == 0)

			return(false) ;

	}

	return(true) ; 

}



// --------------------- Date Verification Function ----------------------



function dateVerify(datevalue)

{

	var strDate ;

	var month,day,year ;

	var datearray ;

	strDate = datevalue ;

	if(strDate.search("/") != -1 )

		datearray = strDate.split("/") ;

	else if(strDate.search("-") != -1 )

		datearray = strDate.split("-") ;

	else

		return(false) ;

	if(( datearray.length < 3 ) || ( datearray.length > 3 ) )

		return(false);

	

	m = datearray[0] ;

        d = datearray[1] ;

        y = datearray[2] ;

	if(isNaN(m))

		return(false) ;

	month = parseInt(m,10) ;

	if(isNaN(d))

		return(false) ;

	day = parseInt(d,10) ;

	if(isNaN(y))

		return(false) ;

	year = parseInt(y,10) ;

	if((day >= 1 && day <= 31) && ( month == 1 ) ||

		(day >= 1 && day <= 31) && ( month == 3 ) ||

		(day >= 1 && day <= 31) && ( month == 5 ) ||

		(day >= 1 && day <= 31) && ( month == 7 ) ||

		(day >= 1 && day <= 31) && ( month == 8 ) ||

		(day >= 1 && day <= 31) && ( month == 10 ) ||

		(day >= 1 && day <= 31) && ( month == 12 ))

	{

		if( year >= 1900 && year <= 9999 )

		{

			return(true) ;

		}

		else

			return(false) ;

	}

	else if((day >= 1 && day <= 30) && ( month == 4 ) ||

		(day >= 1 && day <= 30) && ( month == 6 ) ||

		(day >= 1 && day <= 30) && ( month == 9 ) ||

		(day >= 1 && day <= 30) && ( month == 11 ))

	{

		if( year >= 1900 && year <= 9999 )

		{

			return(true) ;

		}

		else

			return(false) ;	

	}

	else if((month == 2) && (year%4 == 0) && (day >= 1 && day <= 29))

	{

		if( year >= 1900 && year <= 9999 )

		{

			return(true) ;

		}

		else

			return(false) ;

	}

	else if((month == 2) && (day >= 1 && day <= 28))

	{

		if( year >= 1900 && year <= 9999 )

		{

			return(true) ;

		}

		else

			return(false) ;

		}

	else

		return(false) ;

}



// --------------------- Save message alert Function ----------------------



function saveRecordMsg()

{

	if(confirm("Do you wish to save this record"))

		return(true) ;

	else

		return(false) ;

}



// --------------------- Edit message alert Function ----------------------



function editRecordMsg()

{

	if(confirm("Do you wish to edit this record"))

		return(true) ;

	else

		return(false) ;

}



// --------------------- Delete message alert Function ----------------------



function deleteRecordMsg()

{

	if(confirm("Do you wish to delete this record"))

		return(true) ;

	else

		return(false) ;

}



// --------------------- Exit message alert Function ----------------------



function exitMsg()

{

	if(confirm("Do you wish to exit from this window"))

		return(true) ;

	else

		return(false) ;

}



// --------------------- Customized message alert Function ----------------------



function customizedMsg(msg)

{

	if(confirm(msg))

		return(true) ;

	else

		return(false) ;

}



// --------------------- Email Only field Function ----------------------

//emailVerify

function  emailOnly(emailvalue,fieldname)

{

	if(validEmail(emailvalue))

		return(true);

	else

	{

		alert("Please enter valid email address in "+fieldname) ;

		return(false) ;

	}

}



// --------------------- Number Only field Function ----------------------



function  numberOnly(numbervalue,fieldname)

{

	if(numberVerify(numbervalue))

		return(true);

	else

	{

		alert("The "+fieldname+" can contain numeric values only") ;

		return(false) ;

	}

}



// --------------------- Phone Only field Function ----------------------



function  phoneOnly(phonevalue,fieldname)

{

	if(phoneVerify(phonevalue))

		return(true);

	else

	{

		alert("The "+fieldname+" can contain phone number values only") ;

		return(false) ;

	}

}



// --------------------- Date Only field Function ----------------------



function  dateOnly(datevalue,fieldname)

{

	if(dateVerify(datevalue))

		return(true);

	else

	{

		alert("The "+fieldname+" is Invalalid Date. Please Enter Valid Date mm/dd/yyyy.") ;

		return(false) ;

	}

}



// --------------------- Triming string from left sides Function ----------------------



function leftTrim(ltrimvalue)

{

	while(ltrimvalue.charAt(0)==' ')

		ltrimvalue = ltrimvalue.substr(1,ltrimvalue.length-1);

		

	return(ltrimvalue) ;

}



// --------------------- Triming string from right sides Function ----------------------



function rightTrim(rtrimvalue)

{

	while(rtrimvalue.charAt(rtrimvalue.length-1)==' ')

		rtrimvalue = rtrimvalue.substr(0,rtrimvalue.length-1);

	

	return(rtrimvalue) ;

}





 // --------------------- Triming string from both sides Function ----------------------



function allTrim(atrimvalue)

{

	return(rightTrim(leftTrim(atrimvalue))) ;

}





 // --------------------- Character validation Function ----------------------



function validcharOnly(charvalue,fieldname)

{

	invalid = "~/:<>`|^!';"

	charvalue = allTrim(charvalue) ;

	for(i=0;i<invalid.length;i++)

	{

		for(j=0;j<invalid.length;j++)

		{

			if(charvalue.charAt(j) ==  invalid.charAt(i))

			{

				alert("Only valid characters are allowed in "+fieldname) ;

				return(false);

			}

		}

	}

	for(i=0;i<charvalue.length;i++)

	{

		if(charvalue.charAt(i) == 66 || charvalue.charAt(i) == 39)

		{

			alert("Only valid characters are allowed in "+fieldname) ;

			return(false);

		}

	}

	return(true);

}





 // --------------------- Not Allowed Null Function ----------------------



function notallowedNull(charvalue,fieldname)

{

	if(allTrim(charvalue) == "")

	{

		alert("Value for "+fieldname+" is not allowed to be blank") ;

		return(false);

	}

	return(true) ;

}





 // --------------------- Money Validation Function ----------------------



function moneyOnly(moneyvalue,fieldname)

{  

	valid = "0123456789."

	moneyvalue = allTrim(moneyvalue) ;

	for(i=0;i<moneyvalue.length;i++)

	{

		flag = 0 ;

		for(j=0;j<valid.length;j++)

		{

			if(moneyvalue.charAt(i) == valid.charAt(j))

			{

				flag = 1 ;

				break ;

			}

		}

		if(flag == 0)

		{

			alert("Only Money values are allowed in " + fieldname);

			return(false) ;

		}

	}

	return(true) ; 

}





 // --------------------- Dates Comparison Function ----------------------



function compareDates(datevalue1,datevalue2)

{

	

	var strDate = datevalue1;

	var month1,day1,year1,month2,day2,year2 ;

	pos1 = strDate.search("/") ;

	if(pos1 == 2 || pos1 == 1)

	{

		m = strDate.slice(0,pos1)

		mlater = strDate.slice(pos1+1)

		

		if(isNaN(m))

			return(false) ;

		month1 = parseInt(m,10) ;

		

		pos2 = mlater.search("/") ;

		

		if(pos2 == 2 || pos1 == 1)

		{		

			d = mlater.slice(0,pos2)

			dlater = mlater.slice(pos2+1)

			

			if(isNaN(d))

				return(false) ;

			day1 = parseInt(d,10) ;

			

			y = dlater.slice(0)

			if(isNaN(y))

				return(false) ;

			year1 = parseInt(y,10) ;

		}

	}

	var strDate = datevalue2;

	pos1 = strDate.search("/") ;

	if(pos1 == 2 || pos1 == 1)

	{

		m = strDate.slice(0,pos1)

		mlater = strDate.slice(pos1+1)

		

		if(isNaN(m))

			return(false) ;

		month2 = parseInt(m,10) ;

		

		pos2 = mlater.search("/") ;

		

		if(pos2 == 2 || pos1 == 1)

		{		

			d = mlater.slice(0,pos2)

			dlater = mlater.slice(pos2+1)

			

			if(isNaN(d))

				return(false) ;

			day2 = parseInt(d,10) ;

			

			y = dlater.slice(0)

			if(isNaN(y))

				return(false) ;

			year2 = parseInt(y,10) ;

		}

	}

	if(year1 > year2)

	{

		return(datevalue1) ;

	}

	else if(year2 > year1)

	{

		return(datevalue2) ;

	}

	else if(month1 > month2)

	{

		return(datevalue1) ;

	}

	else if(month2 > month1)

	{

		return(datevalue2) ;

	}

	else if(day1 >day2)

	{

		return(datevalue1) ;

	}

	else if(day2 > day1)

	{

		return(datevalue2) ;

	}

	else

	{

		return(datevalue1) ;

	}

}

 // --------------------- Date Range restriction Function ----------------------

function daterangeVerify(date1,date2,datediff)

{

	sStartDate = date1;

	sEndDate = date2;

        DateRange = datediff; 

	bStartDateSpecified = false;

	bEndDateSpecified = false;

	startDateObj = null;

	endDateObj = null;

	if ( sStartDate.length > 0 )

	{

		bStartDateSpecified = true;

		nStartYear = parseInt(sStartDate.substring(6, 10));

		sStartMonth = sStartDate.substring(0, 2);

		if ( sStartMonth.charAt(0) == '0' )

		{

			nStartMonth = parseInt(sStartMonth.substring(1, 2));

		}

		else

		{

			nStartMonth = parseInt(sStartMonth.substring(0, 2));

		}

		sStartDay = sStartDate.substring(3, 5);

		if ( sStartDay.charAt(0) == '0' )

		{

			nStartDay = parseInt(sStartDay.substring(1, 2));

		}

		else

		{

			nStartDay = parseInt(sStartDay.substring(0, 2));

		}

		startDateObj = new Date(nStartYear, nStartMonth-1, nStartDay);

	}

	if ( sEndDate.length > 0 )

	{

		bEndDateSpecified = true;

		nEndYear = parseInt(sEndDate.substring(6, 10));

		sEndMonth = sEndDate.substring(0, 2);

		if ( sEndMonth.charAt(0) == '0' )

		{

			nEndMonth = parseInt(sEndMonth.substring(1, 2));

		}

		else

		{

			nEndMonth = parseInt(sEndMonth.substring(0, 2));

		}

		sEndDay = sEndDate.substring(3, 5);

		if ( sEndDay.charAt(0) == '0' )

		{

			nEndDay = parseInt(sEndDay.substring(1, 2));

		}

		else

		{

			nEndDay = parseInt(sEndDay.substring(0, 2));

		}

		endDateObj = new Date(nEndYear, nEndMonth-1, nEndDay);

	}

	// Only need to check the date range if both the start and end date are specified

	if ( bStartDateSpecified && bEndDateSpecified )

	{

		nDayDiff = Math.round((endDateObj.getTime() - startDateObj.getTime())/86400000);

		if ( (nDayDiff >= 0) && (nDayDiff <= DateRange) )

		{

			return true;

		}

		else if ( nDayDiff > DateRange )

		{

			alert("An invalid date range was entered.  To Date cannot be more than " + DateRange + " days ahead of From Date.");

			return false;

		}

		

	}

	return true;  

}



//--------------------------- remove all spaces in string --------------

function spacenotallowed(str)

{

	for(i=0;i<str.length;i++)

	{

		if(str.charAt(i)==' ')

			str = str.substr(1,str.length-1);

	}	

	return(str) ;

}