Character Counter using javascript

 Max 25 Chars only<br>

<textarea id = "counts"></textarea><br><br>

<div id = "show">0</div>

<script>

    var c = document.getElementById("counts");

    c.oninput = function(){

        var st = c.value;

         if(st.length>=25){

            document.getElementById("show").innerHTML = "Please stop you reached at maximum limit.";

            return false;

        }

        else{

            document.getElementById("show").innerHTML = st.length;

        }

    }

</script>