Auf den Tag genau das Alter herausfinden

[Gugel]

Hallo,

vieleicht kannst du was damit anfangen!

  
<script language="JavaScript">  
<!--  
function MakeArray(n) {  
this.length = n;  
for (var i = 1; i <=n; i++) {  
this[i] = 0;  
   }  
}  
days = new MakeArray(7);  
days[0] = "Samstag"  
days[1] = "Sonntag"  
days[2] = "Montag"  
days[3] = "Dienstag"  
days[4] = "Mittwoch"  
days[5] = "Donnerstag"  
days[6] = "Freitag"  
months = new MakeArray(12);  
months[1] = "Januar"  
months[2] = "Februar"  
months[3] = "März"  
months[4] = "April"  
months[5] = "Mai"  
months[6] = "Juni"  
months[7] = "Juli"  
months[8] = "August"  
months[9] = "September"  
months[10] = "October"  
months[11] = "November"  
months[12] = "Dezember"  
function compute(form) {  
var val1 = parseInt(form.day.value, 10)  
if ((val1 < 0) || (val1 > 31)) {  
alert("Day is out of computable range.")  
}  
var val2 = parseInt(form.month.value, 10)  
if ((val2 < 0) || (val2 > 12)) {  
alert("Month is out of computable range.")  
}  
var val2x = parseInt(form.month.value, 10)  
var val3 = parseInt(form.year.value, 10)  
if (val3 < 1900) {  
alert("Wie alt sind Sie?")  
}  
if (val2 == 1) {  
val2x = 13;  
val3 = val3-1  
}  
if (val2 == 2) {  
val2x = 14;  
val3 = val3-1  
}  
var val4 = parseInt(((val2x+1)*3)/5, 10)  
var val5 = parseInt(val3/4, 10)  
var val6 = parseInt(val3/100, 10)  
var val7 = parseInt(val3/400, 10)  
var val8 = val1+(val2x*2)+val4+val3+val5-val6+val7+2  
var val9 = parseInt(val8/7, 10)  
var val0 = val8-(val9*7)  
form.result1.value =form.day.value+". "+months[val2]+" "+form.year.value  
form.result2.value = days[val0]  
}  
// -->  
</script>  
<FONT class="stn"><b>Wann haben Sie Geburtstag ?</b><br>  
<form>  
<FONT class="stn">Monat (in Zahlen) (1-12):</font><input type="text" name="month" value="12" size=2><br>  
<FONT class="stn">Tag (1-31):</font><input type="text" name="day" value="09" size=2><br>  
<FONT class="stn">Jahr (z.B. 1980):</font><input type="text" name="year" value="1973" size=4><p>  
  
<input type="button" value="Starten" onclick="compute(this.form)">  
<input type="reset" value="Löschen"><br><FONT class="stn">Geburtsdatum:</font>  
<input type="text" name="result1" size=18><br><FONT class="stn">Wochentag:</font>  
<input type="text" name="result2" size=18></form><br></font>