var data=new Date()
var year=data.getYear()
if (year < 1000)
year+=1900
var day=data.getDay()
var daym=data.getDate()
var month=data.getMonth()

var dayarray=new Array("Sonntag","Montag","Dienstag","Mittwoch","Donnerstag","Freitag","Samstag")
var montharray=new Array("Januar","Februar","März","April","Mai","Juni","Juli","August","September","Oktober","November","Dezember")

document.write("Heute ist "+dayarray[day]+", der  "+daym+"  "+montharray[month]+" - "+year);