<script type="text/javascript">


        function hide(){
            document.getElementById('dropdown').style.top = "35" + "px";
        }
        function show(){
            var s = 35;

                for(var i = 35; i < 238; i++){

                setTimeout(function(){document.getElementById('dropdown').style.top = s + "px"; s++;console.log(s); }, i*2);
                }



        }

    </script>