Convert bytes to human readble format

convert_bytes.js

var convert_bytes = function(bytes, force_unit) {
  var return_val = "";
  $.each(['bytes','KB','MB','GB'], function(index, unit) {
    if (force_unit == unit) {
      new_size = Math.round(bytes*100)/100;
      return [new_size, unit];
    }
    if (bytes < 1024.0 && force_unit != "TB") {
      return_val = [Math.round(bytes*100)/100, unit];
    }
    bytes /= 1024.0;
  })
  if (!return_val) {
    new_size = Math.round(bytes*100)/100;
    return_val = [new_size, "TB"];
  }
  return return_val
}