100 den geri sayan js örneği

 <script type="text/javascript">

    var sayac=100;

    degisken=setInterval(say, 1000);

    function say()

    {

        document.getElementById("kutu1").innerHTML=sayac;

        sayac--;

    }

    </script>

    <div id="kutu1" style="float: left;"></div>

    <div style="float: left; margin-left: 5px;">saniye</div>

    </div>