<script type="text/javascript">
var satir = 3;
var sutun = 4;
var temp = '<table cellpadding="3" cellspacing="3">';
var sayi = 0;
for (a = 0; a < satir; a++) {
    temp += "<tr>";
    for (i = 0; i < sutun; i++) {
        sayi++;
        temp += "<td>" + sayi + "</td>";
    }
    temp += "</tr>";
}
temp += "</table>";
document.write(temp);
</script>