Age Calculation script

var dob = wholedata[4];
		 
		 if(dob.length==0)
	 {
	AgeYear=0;	 
	 $("#user_age").val(AgeYear);
	 }
	 else
	 {
     BirthDate=dob.split("-");
	 BirthDay=BirthDate[2];
	 BirthMonth=BirthDate[1];
	 BirthYear=BirthDate[0];
     TodayDate=new Date();
	 CurrentDay=TodayDate.getDate();
	 CurrentMonth="0"+parseInt(TodayDate.getMonth()+1);
	 CurrentYear=TodayDate.getFullYear();
	 AgeDay=CurrentDay-BirthDay;
	 AgeMonth=CurrentMonth-BirthMonth;
	 AgeYear=CurrentYear-BirthYear;
	 if(AgeMonth < 0 || (AgeMonth==0 && AgeDay < 0))
	 {
		AgeYear=parseInt(AgeYear)-1;
	 }
	 else
	 {
		AgeYear=parseInt(AgeYear); 
	 }
	 $("#user_age").val(AgeYear);
}