Convert Georgian to Shamsi(Jalali)

GtoJ.js

// https://www.linkedin.com/posts/ppx1400_ppx-progprox-afyahyabrafyahyabraepahyagpaeb-activity-6820335516840546304-eHMZ
function GtoJ(a){
var e,d,c;
var n,m,l;
var b,h;
var k;
var f;

var gdays=[31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]

var jdays=[31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 29]

function div(c,d){return Math.floor(c/d)}

e=a.split("/")[0]-1600;
d=a.split("/")[1]-1;
c=a.split("/")[2]-1;
b=365*e+div((e+3),4)-div((e+99),100)+div((e+399),400);


for(f=0;f<d;++f){
b+=gdays[f]
}

if(d>1&&((e%4==0&&e%100!=0)||(e%400==0))){
++b
}

b+=c;
h=b-79;
k=div(h,12053);
h%=12053;
n=979+33*k+4*div(h,1461);
h%=1461;

if(h>=366){
n+=div((h-1),365);
h=(h-1)%365
}

for(f=0;f<11&&h>=jdays[f];++f){
h-=jdays[f]
}

m=f+1;
l=h+1;
return n+"/"+m+"/"+l;
}