 <!-- Calendrier de grossesse créé par Dr Aly Abbara, http://www.aly-abbara.com -->
 <!-- le fonctionnement du calendrier est assuré par les calculs du jour julien et ses conversions selon des formules extraites des publications de la société astronomique de France -->
 w = self;
function conversiongjjourjulien(form) {
    MM=(form.nmois.value=="")? "0" : eval(form.nmois.value);
    DD=(form.njour.value=="")? "0": eval(form.njour.value);
    YY=(form.nannee.value=="") ? "0" :eval(form.nannee.value);
   if ((form.nmois.value < 1) || (form.nmois.value > 12) || (form.njour.value < 1) || (form.njour.value > 31) || (form.nmois.value == "") || (form.njour.value == "") || (form.nannee.value == "")) {
      MM = "Invalid"}
   if (((form.nmois.value == 4) || (form.nmois.value == 6) || (form.nmois.value == 9) || (form.nmois.value == 11)) && (form.njour.value > 30)) {
      MM = "Invalid"}
   if (((form.nmois.value == 4) || (form.nmois.value == 6) || (form.nmois.value == 9) || (form.nmois.value == 11)) && (form.njour.value > 30)) {
      form.njour.value = "Invalid"}
   if (form.nmois.value > 12) {
      form.nmois.value = "Invalid"}
   if (((form.nmois.value == 2)) && (form.njour.value > 29)) {
      MM = "Invalid"}
   if (((form.nmois.value == 2)) && (form.njour.value > 29)) {
      form.nmois.value = "Invalid"}
	if ((form.nmois.value == 2) && (form.nannee.value/4) != Math.floor(form.nannee.value/4) && (DD > 28)) {	
      form.nmois.value = "Invalid"}
    with (Math) {  
      GGG = 1;
      if( YY < 1582 ) GGG = 0;
      if( YY <= 1582 && MM < 10 ) GGG = 0;
      if( YY <= 1582 && MM == 10 && DD < 5 ) GGG = 0;
      JD = -1 * floor(7 * (floor((MM + 9) / 12) + YY) / 4);
      S = 1;
      if ((MM - 9)<0) S=-1;
      A = abs(MM - 9);
      J1 = floor(YY + S * floor(A / 7));
      J1 = -1 * floor((floor(J1 / 100) + 1) * 3 / 4);
      JD = JD + floor(275 * MM / 9) + DD + (GGG * J1);
      JD = JD + 1721027 + 2 * GGG + 367 * YY - 0.5;
	  K1 = (JD + 1.5);
	  K2 = (K1/7);
	  K3 = K2 - floor(K2);
	  JS = round(K3*7 + 0.000000000317);
	  }  
	  form.jsemaine.value = JS  
	  form.jsemaine2arabe.value = JS   
   if (form.jsemaine.value == 0) {
      form.jsemaine.value = "Dimanche"} else
   if (form.jsemaine.value == 1) {
      form.jsemaine.value = "Lundi"} else
   if (form.jsemaine.value == 2) {
      form.jsemaine.value = "Mardi"} else
   if (form.jsemaine.value == 3) {
      form.jsemaine.value = "Mercredi"} else
   if (form.jsemaine.value == 4) {
      form.jsemaine.value = "Jeudi"} else
   if (form.jsemaine.value == 5) {
      form.jsemaine.value = "Vendredi"} else
   if (form.jsemaine.value == 6) {
      form.jsemaine.value = "Samedi"}
   if (form.jsemaine2arabe.value == 0) {
      form.jsemaine2arabe.value = "الأحد"} else
   if (form.jsemaine2arabe.value == 1) {
      form.jsemaine2arabe.value = "الإثنين"} else
   if (form.jsemaine2arabe.value == 2) {
      form.jsemaine2arabe.value = "الثلاثاء"} else
   if (form.jsemaine2arabe.value == 3) {
      form.jsemaine2arabe.value = "الأربعاء"} else
   if (form.jsemaine2arabe.value == 4) {
      form.jsemaine2arabe.value = "الخميس"} else
   if (form.jsemaine2arabe.value == 5) {
      form.jsemaine2arabe.value = "الجمعة"} else
   if (form.jsemaine2arabe.value == 6) {
      form.jsemaine2arabe.value = "السبت"}
}
function conversionjourjuliendatehijir(form) {
   JD== ""
   with (Math) {  
   Z = (JD+0.5);
   AH = floor((Z * 30 - 58442554)/10631);
   R2 = Z - floor((AH * 10631 + 58442583)/30);
   M = floor((R2 * 11 + 330)/325);
   R1 = R2 - floor((M * 325 - 320)/11);
   J = R1 +1
   }
    form.nmoishijir.value =  M;
    form.nmoishijir2.value =  M;
    form.njourhijir.value   =  J;
    form.nanneehijir.value  =  AH;
   if (form.nmoishijir.value == 1) {
      form.nmoishijir.value = "Mouharram"}
   if (form.nmoishijir.value == 2) {
      form.nmoishijir.value = "Safar"}
   if (form.nmoishijir.value == 3) {
      form.nmoishijir.value = "Rabi'ou Al-Awwal"}
   if (form.nmoishijir.value == 4) {
      form.nmoishijir.value = "Rabi'ou Al-Thani"}
   if (form.nmoishijir.value == 5) {
      form.nmoishijir.value = "Joumada Al-Awwal"}
   if (form.nmoishijir.value == 6) {
      form.nmoishijir.value = "Joumada Al-Thani"}
   if (form.nmoishijir.value == 7) {
      form.nmoishijir.value = "Rajab"}
   if (form.nmoishijir.value == 8) {
      form.nmoishijir.value = "Ch'ban"}
   if (form.nmoishijir.value == 9) {
      form.nmoishijir.value = "Ramadan"}
   if (form.nmoishijir.value == 10) {
      form.nmoishijir.value = "Chawwal"}
   if (form.nmoishijir.value == 11) {
      form.nmoishijir.value = "Dhou Al-Qi'da"}
   if (form.nmoishijir.value == 12) {
      form.nmoishijir.value = "Dhou Al-Hijja"}
   if (form.nmoishijir2.value == 1) {
      form.nmoishijir2.value = "محرم"}
   if (form.nmoishijir2.value == 2) {
      form.nmoishijir2.value = "صفر"}
   if (form.nmoishijir2.value == 3) {
      form.nmoishijir2.value = "ربيع الأول"}
   if (form.nmoishijir2.value == 4) {
      form.nmoishijir2.value = "ربيع الثاني"}
   if (form.nmoishijir2.value == 5) {
      form.nmoishijir2.value = "جمادى الأول"}
   if (form.nmoishijir2.value == 6) {
      form.nmoishijir2.value = "جمادى الثاني"}
   if (form.nmoishijir2.value == 7) {
      form.nmoishijir2.value = "رجب"}
   if (form.nmoishijir2.value == 8) {
      form.nmoishijir2.value = "شعبان"}
   if (form.nmoishijir2.value == 9) {
      form.nmoishijir2.value = "رمضان"}
   if (form.nmoishijir2.value == 10) {
      form.nmoishijir2.value = "شوال"}
   if (form.nmoishijir2.value == 11) {
      form.nmoishijir2.value = "ذو القعدة"}
   if (form.nmoishijir2.value == 12) {
      form.nmoishijir2.value = "ذو الحجة"}
}
function conversiondatehijirjourjulien(form) {
    MMH=(form.nmoish.value=="")? "0" : eval(form.nmoish.value);
    DDH=(form.njourh.value=="")? "0": eval(form.njourh.value);
    YYH=(form.nanneeh.value=="") ? "0" :eval(form.nanneeh.value);
   if (((form.nmoish.value == 2) || (form.nmoish.value == 4) || (form.nmoish.value == 6) || (form.nmoish.value == 8) || (form.nmoish.value == 10)) && (form.njourh.value > 29)) {
      form.nmoish.value = "Invalid"}
   if (((form.nmoish.value == 2) || (form.nmoish.value == 4) || (form.nmoish.value == 6) || (form.nmoish.value == 8) || (form.nmoish.value == 10)) && (form.njourh.value > 29)) {
      form.njourh.value = "Invalid"}
   if (((form.nanneeh.value == 2) || (form.nmoish.value == 4) || (form.nmoish.value == 6) || (form.nmoish.value == 8) || (form.nmoish.value == 10)) && (form.njourh.value > 29)) {
      form.njourh.value = "Invalid"}
   if (form.nmoish.value > 12) {
      form.nmoish.value = "Invalid"}
   if (form.nmoish.value < 1) {
      form.nmoish.value = "Invalid"}
   if (form.njourh.value < 1) {
      form.njourh.value = "Invalid"}
   if (form.njourh.value > 30) {
      form.njourh.value = "Invalid"}
   if (form.njourh.value == "") {
      form.njourh.value = "Invalid"}
   if (form.nmoish.value == "") {
      form.nmoish.value = "Invalid"}
   if (form.nanneeh.value == "") {
      form.nanneeh.value = "Invalid"}
    with (Math) {  
      KH1 = floor((YYH * 10631 + 58442583)/30);
      KH2 = floor((MMH * 325 - 320)/11);
      KH3 = DDH - 1;
	  JDH = KH1 + KH2 + KH3;
	  KHS1 = (JDH + 1.5);
	  KHS2 = (KHS1/7);
	  KHS3 = KHS2 - floor(KHS2);
	  JSH = round(KHS3*7 + 0.000000000317) - 1;
	  }  
	  form.jsemaineh.value = JSH 
	  form.jsemaineharabe.value = JSH 
	  form.jsemaineharabe2.value = JSH 
   if (form.jsemaineh.value == 0) {
      form.jsemaineh.value = "Dimanche"} else
   if (form.jsemaineh.value == 1) {
      form.jsemaineh.value = "Lundi"} else
   if (form.jsemaineh.value == 2) {
      form.jsemaineh.value = "Mardi"} else
   if (form.jsemaineh.value == 3) {
      form.jsemaineh.value = "Mercredi"} else
   if (form.jsemaineh.value == 4) {
      form.jsemaineh.value = "Jeudi"} else
   if (form.jsemaineh.value == 5) {
      form.jsemaineh.value = "Vendredi"} else
   if (form.jsemaineh.value == 6) {
      form.jsemaineh.value = "Samedi"}
   if (form.jsemaineharabe.value == 0) {
      form.jsemaineharabe.value = "Al-Ah^ad"} else
   if (form.jsemaineharabe.value == 1) {
      form.jsemaineharabe.value = "Al-ithna-yn"} else
   if (form.jsemaineharabe.value == 2) {
      form.jsemaineharabe.value = "Al-ThalathA*"} else
   if (form.jsemaineharabe.value == 3) {
      form.jsemaineharabe.value = "Al-Arbi'A*"} else
   if (form.jsemaineharabe.value == 4) {
      form.jsemaineharabe.value = "Al-Khamis"} else
   if (form.jsemaineharabe.value == 5) {
      form.jsemaineharabe.value = "Al-Joumou'a"} else
   if (form.jsemaineharabe.value == 6) {
      form.jsemaineharabe.value = "Al-Sabt"}
   if (form.jsemaineharabe2.value == 0) {
      form.jsemaineharabe2.value = "الأحد"} else
   if (form.jsemaineharabe2.value == 1) {
      form.jsemaineharabe2.value = "الإثنين"} else
   if (form.jsemaineharabe2.value == 2) {
      form.jsemaineharabe2.value = "الثلاثاء"} else
   if (form.jsemaineharabe2.value == 3) {
      form.jsemaineharabe2.value = "الأربعاء"} else
   if (form.jsemaineharabe2.value == 4) {
      form.jsemaineharabe.value = "الخميس"} else
   if (form.jsemaineharabe2.value == 5) {
      form.jsemaineharabe2.value = "الجمعة"} else
   if (form.jsemaineharabe2.value == 6) {
      form.jsemaineharabe2.value = "السبت"}
}
function conversionjourjuliendategregojulienne(form) {
   JDH== ""
   with (Math) {  
   Z = floor(JDH+0.5);
   F = JDH+0.5 - Z;
   if (Z < 2299161) {
      A = Z
	} else
      {I = floor((Z - 1867216.25)/36524.25);
      A = Z + 1 + I - floor(I/4);
    }
   B = A + 1524;
   C = floor((B - 122.1)/365.25);
   D = floor(365.25 * C);
   T = floor((B - D)/ 30.6001);
   RJ = B - D - floor(30.6001 * T) + F;
   JJ = floor(RJ);
   if (T < 13.5) {
      MM = T - 1
   } else
   { if (T > 13.5)  MM = T - 13 
   } 
   if (MM > 2.5) {
      AA = C - 4716 } else
   { if (MM < 2.5) AA = C - 4715
   }
   }
    form.nmoisgregojulien.value =  MM;
    form.nmoisgregojulien2.value =  MM;
    form.njourgregojulien.value   =  JJ;
    form.nanneegregojulien.value  =  AA;
   if (form.nmoisgregojulien.value == 1) {
      form.nmoisgregojulien.value = "Janvier"}
   if (form.nmoisgregojulien.value == 2) {
      form.nmoisgregojulien.value = "Février"}
   if (form.nmoisgregojulien.value == 3) {
      form.nmoisgregojulien.value = "Mars"}
   if (form.nmoisgregojulien.value == 4) {
      form.nmoisgregojulien.value = "Avril"}
   if (form.nmoisgregojulien.value == 5) {
      form.nmoisgregojulien.value = "Mai"}
   if (form.nmoisgregojulien.value == 6) {
      form.nmoisgregojulien.value = "Juin"}
   if (form.nmoisgregojulien.value == 7) {
      form.nmoisgregojulien.value = "Juillet"}
   if (form.nmoisgregojulien.value == 8) {
      form.nmoisgregojulien.value = "Août"}
   if (form.nmoisgregojulien.value == 9) {
      form.nmoisgregojulien.value = "Septembre"}
   if (form.nmoisgregojulien.value == 10) {
      form.nmoisgregojulien.value = "Octobre"}
   if (form.nmoisgregojulien.value == 11) {
      form.nmoisgregojulien.value = "Novembre"}
   if (form.nmoisgregojulien.value == 12) {
      form.nmoisgregojulien.value = "Décembre"}
   if (form.nmoisgregojulien2.value == 1) {
      form.nmoisgregojulien2.value = "كانون الثاني"}
   if (form.nmoisgregojulien2.value == 2) {
      form.nmoisgregojulien2.value = "شباط"}
   if (form.nmoisgregojulien2.value == 3) {
      form.nmoisgregojulien2.value = "آذار"}
   if (form.nmoisgregojulien2.value == 4) {
      form.nmoisgregojulien2.value = "نيسان"}
   if (form.nmoisgregojulien2.value == 5) {
      form.nmoisgregojulien2.value = "أيار"}
   if (form.nmoisgregojulien2.value == 6) {
      form.nmoisgregojulien2.value = "حزيران"}
   if (form.nmoisgregojulien2.value == 7) {
      form.nmoisgregojulien2.value = "تموز"}
   if (form.nmoisgregojulien2.value == 8) {
      form.nmoisgregojulien2.value = "آب"}
   if (form.nmoisgregojulien2.value == 9) {
      form.nmoisgregojulien2.value = "أيلول"}
   if (form.nmoisgregojulien2.value == 10) {
      form.nmoisgregojulien2.value = "تشرين الأول"}
   if (form.nmoisgregojulien2.value == 11) {
      form.nmoisgregojulien2.value = "تشرين الثاني"}
   if (form.nmoisgregojulien2.value == 12) {
      form.nmoisgregojulien2.value = "كانون الأول"}
}
function Newdate(form) {
	form.nmois.value = "";
	form.njour.value = "";
	form.nannee.value = "";
    form.jsemaine.value = "";
	form.nmoishijir.value = "";
	form.njourhijir.value = "";
	form.nanneehijir.value = "";
	form.njour.focus();
}	
function Newdate2(form) {
	form.nmoish.value = "";
	form.njourh.value = "";
	form.nanneeh.value = "";
	form.jsemaineh.value = "";
	form.nmoisgregojulien.value = "";
	form.njourgregojulien.value = "";
	form.nanneegregojulien.value = "";
}	
 <!-- Calendrier de grossesse créé par Dr Aly Abbara, http://www.aly-abbara.com -->
 <!-- le fonctionnement du calendrier est assuré par les calculs du jour julien et ses conversions selon des formules extraites des publications de la société astronomique de France -->