Moin !
function richtig() {
while (next < 4) {
if(parent.aufgabe[next] == 0) {
parent.frames[1].document.location.href=+next+".html";
^
zuviel ...
else
}
next=next+1;
}
parent.frames[1].document.location.href="loesung.html";
}
Ciao,
Harry