// JavaScript Document
var longitude;
var latitude;
function main(month,day)
{
//var i = document.getElementById("cities").selectedIndex;
    var morningAzan;
var sunRise;
var noonAzan;
var sunSet;
var eveningAzan;
var i = 13 ; //for Tehran
if(i==0)
return
    var m = eval(month);
var d = eval(day);
    var lg = "51.41";
var lat = "35.7";
//	var lg=52.5125;
//	var lat=29.635;
var ep=sun(m,d,4,lg);
    var zr=ep[0];
delta=ep[1];
ha=loc2hor(108.0,delta,lat)
    var t1=Round(zr-ha,24)
ep=sun(m,d,t1,lg)
zr=ep[0];
delta=ep[1];
ha=loc2hor(108.0,delta,lat)
    t1=Round(zr-ha,24)
morningAzan = hms(t1);
//
//   t2= Sun rise
//
ep=sun(m,d,6,lg)
zr=ep[0];
delta=ep[1];
ha=loc2hor(90.833,delta,lat)
var t2=Round(zr-ha,24)
ep=sun(m,d,t2,lg)
zr=ep[0];
delta=ep[1];
ha=loc2hor(90.833,delta,lat)
t2=Round(zr-ha,24)
sunRise = hms(t2);
//	
//	zr=Zohr
//
ep=sun(m,d,12,lg)
ep=sun(m,d,ep[0],lg)
zr=ep[0];
noonAzan = hms(zr);
//
//   t2= Sun set
//
ep=sun(m,d,18,lg)
zr=ep[0];
delta=ep[1];
ha=loc2hor(90.833,delta,lat)
var t3=Round(zr+ha,24)
ep=sun(m,d,t3,lg)
zr=ep[0];
delta=ep[1];
ha=loc2hor(90.833,delta,lat)
t3=Round(zr+ha,24)
sunSet = hms(t3);
//
//   t2= Maghreb
//
ep=sun(m,d,18.5,lg)
zr=ep[0];
delta=ep[1];
ha=loc2hor(94.3,delta,lat)
var t4=Round(zr+ha,24)
ep=sun(m,d,t4,lg)
zr=ep[0];
delta=ep[1];
ha=loc2hor(94.3,delta,lat)
t4=Round(zr+ha,24)
eveningAzan = hms(t4);
    var result = (morningAzan + '@' + sunRise + '@' + noonAzan + '@' + sunSet +'@' + eveningAzan);
return result;
}
function sun(m,d,h,lg)
{
    if(m<7)
d= 31*(m-1)+d+h/24;
else{
        d=6+30*(m-1)+d+h/24;
    }
    var M=74.2023+0.98560026*d;
var L=-2.75043+0.98564735*d;
var lst=8.3162159+0.065709824*Math.floor(d)+1.00273791*24*(d%1)+lg/15;
var e=0.0167065;
var omega=4.85131-0.052954*d;
var ep=23.4384717+0.00256*cosd(omega);
var ed=180.0/Math.PI*e;
var u=M;
for(var i=1;i<5;i++)
u=u-(u-ed*sind(u)-M)/(1-e*cosd(u));
var v=2*atand(tand(u/2)*Math.sqrt((1+e)/(1-e)));
var theta=L+v-M-0.00569-0.00479*sind(omega);
var delta=asind(sind(ep)*sind(theta));
var alpha=180.0/Math.PI*Math.atan2(cosd(ep)*sind(theta),cosd(theta));
if(alpha>=360)
alpha-=360;
var ha=lst-alpha/15;
var zr=Round(h-ha,24);
return ([zr,delta])
}
function sind(x){return(Math.sin(Math.PI/180.0*x));}
function cosd(x){return(Math.cos(Math.PI/180.0*x));}
function tand(x){return(Math.tan(Math.PI/180.0*x));}
function atand(x){return(Math.atan(x)*180.0/Math.PI);}
function asind(x){return(Math.asin(x)*180.0/Math.PI);}
function acosd(x){return(Math.acos(x)*180.0/Math.PI);}
function sqrt(x){return(Math.sqrt(x));}
function frac(x){return(x%1);}
function floor(x){return(Math.floor(x));}
function ceil(x){return(Math.ceil(x));}
function loc2hor(z,d,p){
return(acosd((cosd(z)-sind(d)*sind(p))/cosd(d)/cosd(p))/15);
}
function Round(x,a){
var tmp=x%a;
if(tmp<0)
tmp+=a;
return(tmp)
}
function hms(x)
{
x=Math.floor(3600*x);
h=Math.floor(x/3600);
mp=x-3600*h;
m=Math.floor(mp/60);
s=Math.floor(mp-60*m);
return(((h<10)? "0" : "")+h.toString()+":"+((m<10)? "0" : "")+m.toString()+":"+((s<10)? "0" : "")+s.toString())
}