ANKI Hiragana to Katakana

<span id="Reading">{{Reading}}</span>
<script>
    // Function to convert Hiragana to Katakana by subtracting 96
    // from the Unicode character codes. Quick and dirty hack :D
    function HtoK(id) {
      hString = document.getElementById(id).innerHTML;
      kString = "";

      for (var i = 0, len = hString.length; i < len; i++) {
        theChar = hString.charCodeAt(i);

        // If character is Hiragana, add 96 to get its katakana equivalent
        if (theChar >= 12353 && theChar <= 12453) {
          theChar += 96;
        }

        kString = kString + String.fromCharCode(theChar);
      }

      document.getElementById(id).innerHTML = kString;
      return (0);
    }
    HtoK("Reading");
</script>