var stelle1 = 0;
var speed1 = 10;

function nachrichten1(text){
var txt = text;
txt +=""+txt;
this.document.Form.Zeile.value = txt.substring(stelle1,stelle1+41);
if (stelle1++==text.length){stelle1 =0;}
setTimeout("nachrichten1('"+text+"')",1000/speed1);
}