$(document).ready(function(){
   encrypted = ''
   $(".encrypted").html(rot47($(".encrypted").html()));
 });

function rot47(data) {
  var res = "";
  for(var i = 0; i < data.length; i++) {
      var ch = data.charCodeAt(i);
      res += (ch + 47 >= 126) ? String.fromCharCode(" ".charCodeAt(0) + (ch + 47) % 126) : String.fromCharCode(ch + 47);
  }
  return res;
}