var X_now = new Date();
var X_days = new Array('Søndag','Mandag','Tirsdag','Onsdag','Torsdag','Fredag','Lørdag');
var X_months = new Array('Januar','Februar','Marts','April','Mai','Juni','Juli','August','September','October','November','December');
var X_date = ((X_now.getDate()<10) ? "0" : "")+ X_now.getDate();

function fourdigits(number)    {
   return (number < 1000) ? number + 1900 : number;
                               }

X_today =  X_days[X_now.getDay()] + ", " +
              X_date + ". " +
               X_months[X_now.getMonth()] + " " +
                (fourdigits(X_now.getYear())) ;

document.write(X_today);