function showcredit()



{

var credit

credit=   "Script programmed by Jens T.Saetre   21042002"

credit+="\n21042002 Script to find weeknumber and weekdaynumber from date"

credit+="\n08122002 Changed layout"

window.alert(credit);

}







function manual_input(){

var Day,Month,Year,Hour,Minute,Second,today,d,Y_m,M_m,K,MJD_Now,MJD_Epoch,MJD_End,JD,Str_Var,WD,WN,W,WY

today = new Date();



today = new Date();

Hour= today.getUTCHours();

Minute=today.getUTCMinutes();

Second=today.getUTCSeconds();

Month= today.getUTCMonth()+1;

Day= today.getUTCDate();

Year= today.getUTCFullYear();





//alert("Hour="+Hour);

//alert("Year="+Year);





Day=1*document.Today.Day.value;

Month=1*document.Today.Month.value;

Year=1*document.Today.Year.value;

Hour=1*document.Today.Hour.value;

Minute=1*document.Today.Minute.value;

Second=1*document.Today.Second.value;





MJD_Now=ModifiedJulianDay(Year,Month,Day);

W = Math.floor ( (MJD_Now / 7) - 2144.64 );

WD=((MJD_Now+2)%7)+1;

WY = Math.floor( (W * 28/1461) - 0.0079);

WN = W - Math.floor( (WY * 1461/28) + 0.41);

document.Today.Weekday.value=WD;

document.Today.Weeknumber.value=WN;

document.Today.MJD.value=MJD_Now;

document.Today.JD.value=((MJD_Now-51543.0)+2451543.5);



//document.WC2002.Time.value=Year+"/"+Month+"/"+Day;

}









function main(){

var Day,Month,Year,Hour,Minute,Second,today,d,Y_m,M_m,K,MJD_Now,MJD_Epoch,MJD_End,JD,Str_Var,WD,WN,W,WY

today = new Date();





today = new Date();

Hour= today.getUTCHours();

Minute=today.getUTCMinutes();

Second=today.getUTCSeconds();

Month= today.getUTCMonth()+1;

Day= today.getUTCDate();

Year= today.getUTCFullYear();





//alert("Hour="+Hour);

//alert("Year="+Year);





document.Today.Day.value=Day;

document.Today.Month.value=Month;

document.Today.Year.value=Year;

document.Today.Hour.value=Hour;

document.Today.Minute.value=Minute;

document.Today.Second.value=Second;





MJD_Now=ModifiedJulianDay(Year,Month,Day);

W = Math.floor ( (MJD_Now / 7) - 2144.64 );

WD=((MJD_Now+2)%7)+1;

WY = Math.floor( (W * 28/1461) - 0.0079);

WN = W - Math.floor( (WY * 1461/28) + 0.41);

document.Today.Weekday.value=WD;

document.Today.Weeknumber.value=WN;

document.Today.MJD.value=MJD_Now;

document.Today.JD.value=((MJD_Now-51543.0)+2451543.5);



//document.WC2002.Time.value=Year+"/"+Month+"/"+Day;

}





function ModifiedJulianDay(Year,Month,Day){

var today,d,Y_m,M_m,K,MJD,JD,decimal_time

d=367*Year - Div(  (7*(Year+(Div((Month+9),12)))),4 ) + Div((275*Month),9) + Day - 730530 ;

//alert(decimal_time);

MJD=d+51543.0; // OK

return ( MJD)

}





function Days_and_time_left(MJDDateTime,MJDEpochTimeDate){

var today,d,Y_m,M_m,K,MJD,JD,decimal_time,Days,remainder,Hours,Minutes,Seconds,ReturnValue



Days=Math.floor(MJDEpochTimeDate)-Math.floor(MJDDateTime);

remainder=(MJDEpochTimeDate-MJDDateTime)-Days;

Hours=Math.floor(remainder*24);

remainder=remainder*24-Hours;

Minutes=Math.floor(remainder*60);

remainder=remainder*60-Minutes;

Seconds=Math.floor(remainder*60)

Hours=Math.abs(Hours);







return (Days+" days"+" "+Hours+" hours "+Minutes+" minutes and "+Seconds+ " seconds" )





}













function Div(a,b)

{

return((a-a%b)/b)  //OK

}







function formatvalue(input, rsize) // Desimal avrunding

  {

   var invalid = "**************************";

   var nines = "999999999999999999999999";

   var strin = "" + input;

   var fltin = parseFloat(strin);

   if (strin.length <= rsize) return strin;

   if (strin.indexOf("e") != -1 ||

       fltin > parseFloat(nines.substring(0,rsize)+".4"))

      return invalid.substring(0, rsize);

   var rounded = "" + (fltin + (fltin - parseFloat(strin.substring(0, rsize))));

   return rounded.substring(0, rsize);

}