急急急，一个关于setTimeout的问题??

Question

<script>
function Move(action,value) {
    if (action==1) {document.write(action+"<br>");}
    if (action==2) {document.write(action+"<br>");}
    if (action==3) {document.write(action+"<br>");}
    if (action==4) {document.write(action+"<br>");}
    action++;
    timeid=setTimeout("Move("+action+","+value+")",500);
    if (action==99) clearTimeout(timeid)
}
</script>

Answer 1

timeid=setTimeout("Move("+action+","+value+")",500);

Answer 2

timeid=setTimeout("Move("+action+","+value+")",500);