function date(){
var birth = document.getElementById("bday").value;
var current = document.getElementById("cday").value;
// birth date
var s = birth.split("-");
var day = s[2];
var month = s[1];
var year = s[0];
//current date
var h = current.split("-");
var c_day = h[2];
var c_month = h[1];
var c_year = h[0];
// calculation
if(c_day < day){
c_day =parseInt(c_day)+parseInt(31);
c_month =c_month - 1;
}
if(c_month < month){
c_month =parseInt(c_month)+parseInt(12);
c_year =c_year - 1 ;
}
var final_year = c_year - year ;
var final_day = c_day - day ;
var final_month = c_month - month ;
document.getElementById("f_year").innerHTML= final_year ;
document.getElementById("f_month").innerHTML= final_month ;
document.getElementById("f_day").innerHTML= final_day ;
//,total year
document.getElementById("f2_year").innerHTML= final_year ;
//total month
var total_month =parseInt(final_year * 12)+parseInt(final_month);
document.getElementById("f2_month").innerHTML= total_month ;
//total week
var total_week = Math.round(parseInt(total_month * 4.345)+parseInt(final_day / 7));
document.getElementById("f2_week").innerHTML= total_week;
// total day
var total_days =Math.round(parseInt(total_month * 30.417)+parseInt(final_day));
document.getElementById("f2_day").innerHTML= total_days;
// total hour
var total_hours =parseInt(total_days * 24);
document.getElementById("f2_hours").innerHTML= total_hours;
// total menuts
var total_mun = total_hours * 60;
document.getElementById("f2_minutes").innerHTML= total_mun;
}