js/util.js

   1 $(document).ready(function(){
   2         // count character on keyup
   3         function counter(){
   4             var maxLength     = 140;
   5             var currentLength = $("#status_textarea").val().length;
   6             var remaining = 140 - currentLength;
   7             var counter = $("#counter");
   8             counter.text(remaining);
   9
  10             if(remaining <= 0) {
  11                 counter.attr("class", "toomuch");
  12                 } else {
  13                 counter.attr("class", "");
  14                 }
  15         }
  16
  17         if ($("#status_textarea").length) {
  18             $("#status_textarea").bind("keyup", counter);
  19             // run once in case there's something in there
  20                         counter();
  21         }
  22 });
  23