var jmd0=new Array(0,30,59,88,117,147,0,176,206,235,265,294,324);var jmd1=new Array(0,30,59,89,118,148,0,177,207,236,266,295,325);var jmd2=new Array(0,30,60,90,119,149,0,178,208,237,267,296,326);var jmd3=new Array(0,30,59,88,117,147,177,206,236,265,295,324,354);var jmd4=new Array(0,30,59,89,118,148,178,207,237,266,296,325,355);var jmd5=new Array(0,30,60,90,119,149,179,208,238,267,297,326,356);var jewish_month_days=new Array(jmd0,jmd1,jmd2,jmd3,jmd4,jmd5);var jewish_month=new Array("Tishri","Kheshvan","Kislev","Tevet","Shevat","Adar","Adar II","Nisan","Iyyar","Sivan","Tammuz","Av","Elul");var gregorian_month=new Array(0,"January","February","March","April","May","June","July","August","September","October","November","December");var sp=" ";var pt=" ";function common_year(year){var rem=year%19;var result=((rem!=0)&&(rem!=3)&&(rem!=6)&&(rem!=8)&&(rem!=11)&&(rem!=14)&&(rem!=17));return result;}
function year_after_leap_year(year){var rem=year%19;var result=((rem==1)||(rem==4)||(rem==7)||(rem==9)||(rem==12)||(rem==15)||(rem==18));return result;}
function division(zaehler,nenner){var quotient=zaehler/nenner;var rest=zaehler%nenner;var result=Math.round(quotient-(rest/nenner));return result;}
function index_from_length(l){var result=3*(division(l-300,80))+1*(l%10)-3;return result;}
function dhp_add(dhp1,dhp2){var d=dhp1[0]+dhp2[0];var h=dhp1[1]+dhp2[1];var p=dhp1[2]+dhp2[2];dhp1[2]=p%1080;h=h+division(p,1080);dhp1[1]=h%24;dhp1[0]=d+division(h,24);return dhp1;}
function dhp_mult(n,dhp){var d=n*dhp[0];var h=n*dhp[1];var p=n*dhp[2];dhp[2]=p%1080;h=h+division(p,1080);dhp[1]=h%24;dhp[0]=d+division(h,24);return dhp;}
function elapsed_time19(year){var t=new Array(29,12,793);var n19=year%19;var moladot=division((n19*12.36+0.77),1);var result=dhp_mult(moladot,t);return result;}
function elapsed_time235(year){var t=new Array(6939,16,595);var moladot=division(year,19);var result=dhp_mult(moladot,t);return result;}
function molad(year){var t0=new Array(118,7,695);var t1=elapsed_time235(year);var t2=elapsed_time19(year);var t3=dhp_add(t1,t2);var result=dhp_add(t0,t3);result[0]=result[0]-500;return result;}
function new_year(year){var molad_tishri_dhp=molad(year);var result=molad_tishri_dhp[0];if(molad_tishri_dhp[1]>=18){result++};var dow=result%7;if((dow==1)||(dow==4)||(dow==6)){result++};var time_hp=molad_tishri_dhp[1]*10000+1*molad_tishri_dhp[2];var dow2=molad_tishri_dhp[0]%7;if((common_year(year))&&(dow2==3)&&(time_hp>=90204)&&(time_hp<180000)){result=1*molad_tishri_dhp[0]+2};if((year_after_leap_year(year))&&(dow2==2)&&(time_hp>=150589)&&(time_hp<180000)){result=1*molad_tishri_dhp[0]+1};result=1*result+347996;return result;}
function adjusted_month_from_month(m){var result=((1*m+9)%12)+3;return result;}
function adjusted_year_from_year(y,m){var result=y-1+division((1*m+7),10);return result}
function year_from_adjusted_year(j_strich,m_strich){var result=j_strich+division(m_strich,13);return result;}
function month_from_adjusted_month(m_strich){var result=((m_strich+11)%12)+1;return result;}
function jewish_dmy_from_jd(jd){var approx_year=division((jd-347998),365.25);approx_year+=2;while(new_year(approx_year)>jd){approx_year--};var year_length=new_year(approx_year*1+1)-new_year(approx_year);var d=jd-new_year(approx_year);d++;var ix=index_from_length(year_length);var m=0;while((jewish_month_days[ix][m])<d){m++};m--;if((jewish_month_days[ix][m]==0)&&(m>0)){m--};var result=new Array(d-jewish_month_days[ix][m],m,approx_year);return result;}
function jd_from_jewish(d,m,y){if((common_year(y))&&(m==6)){m=5};var ny0=new_year(y);y++;var ny1=new_year(y);var ix=index_from_length(ny1-ny0);var jd=ny0*1+jewish_month_days[ix][m]*1+d*1-1;return jd;}
function greg_dmy_from_jd(jd){var a=1*jd+32044;var b=division(a,146097);var c=a%146097;var d=Math.min(3,division(c,36524));var e=c-36524*d;var f=division(e,1461);var g=e%1461;var h=Math.min(3,division(g,365));var k=g-365*h;var l=division((111*k+41),3395);var t=k-30*l-division((7*l+7),12)+1;var m_strich=l+3;var j_strich=400*b+100*d+4*f+1*h-4800;var m=month_from_adjusted_month(m_strich);var j=year_from_adjusted_year(j_strich,m_strich);var result=Array(t,m,j);return result;}
function jd_from_greg(d,m_strich,y_strich){var y4800=y_strich+4800;var a=division(y4800,100);var b=y4800%100;var result=146097*division(a,4)+36524*(a%4)+1461*division(b,4)+365*(b%4)+division((7*(m_strich-2)),12)+30*m_strich+1*d+1721029-1753164;return result;}
function jd_from_greg_dmy(dmy){return jd_from_greg(Math.abs(dmy[0]),adjusted_month_from_month(dmy[1]),adjusted_year_from_year(Math.abs(dmy[2]),dmy[1]));}
function jewish_dmy_from_greg_dmy(greg_day,greg_month,greg_year){var jd=jd_from_greg(Math.abs(greg_day),adjusted_month_from_month(greg_month),adjusted_year_from_year(Math.abs(greg_year),greg_month));var jewish_dmy=jewish_dmy_from_jd(jd);return jewish_dmy;}
function jewish_str(dmy){var str=dmy[0]+" ";if(!common_year(dmy[2])){str+=jewish_month[dmy[1]];if(dmy[1]==5)str+=" I";}
else{if(dmy[1]==6){str+=jewish_month[5];}
else{str+=jewish_month[dmy[1]];}}
str+=" "+dmy[2];return str;}
function greg_str(dmy){return dmy[0]+" "+gregorian_month[dmy[1]]+" "+dmy[2];}
function get_yahrzeits_table(jd,count){var count=count||10;jew_dmy=jewish_dmy_from_jd(jd);greg_dmy=greg_dmy_from_jd(jd);var html='<table><tr><th width="130px">Jewish date</th><th>Gregorian date</th></tr>';for(i=0;i<count;i++){html+='<tr><td>'+jewish_str(jew_dmy)+'</td><td>'+greg_str(greg_dmy)+'</td></tr>';jew_dmy[2]++;greg_dmy=greg_dmy_from_jd(jd_from_jewish(jew_dmy[0],jew_dmy[1],jew_dmy[2]));}
html+='</table>';return html;}
function calculate_yahrzeit(el,dest_id){var jew_dmy;var frm=el.form;var greg_dmy=new Array();var dest=document.getElementById(dest_id);greg_dmy[0]=frm.greg_day.options[frm.greg_day.selectedIndex].value;greg_dmy[1]=frm.greg_month.options[frm.greg_month.selectedIndex].value;greg_dmy[2]=frm.greg_year.options[frm.greg_year.selectedIndex].value;var jd=jd_from_greg_dmy(greg_dmy);if(frm.after_sunset.checked){jd++;}
dest.innerHTML=get_yahrzeits_table(jd,20);}
function generate_year_options(from,to){var html="";for(i=from;i<to;i++){html+='<option value="'+i+'">'+i+'</option>';}
html+='<option value="'+to+'" selected>'+to+'</option>';return html;}
function generate_month_options(){var html="";var date=new Date();var month=date.getMonth()+1;for(i=1;i<=12;i++){html+='<option value="'+i+'"';if(i==month){html+=" selected";}
html+='>'+gregorian_month[i]+'</option>';}
return html;}
function generate_day_options(){var html="";var date=new Date();var day=date.getDay()+1;for(i=1;i<=31;i++){html+='<option value="'+i+'"';if(i==day){html+=" selected";}
html+='>'+i+'</option>';}
return html;}