gistfile1.txt

$(".encrypted-content").show()

$(".encrypted-content").html(function(index, oldtext){
  new_string = ""
  /*handle special html characters  */
  oldtext = oldtext.replace(/>/g,">");
  oldtext = oldtext.replace(/&lt;/g,"<");
  oldtext = oldtext.replace(/&amp;/g,"&");


  for ( var i = 0; i < oldtext.length; i++ )
    {
      code = oldtext.charCodeAt(i);
      letter = oldtext.charAt(i);

      if(code == 32){  /*skip spaces " " == 32  */
        new_string += letter
      }
      else if (code >79){
        new_string += String.fromCharCode(code - 47)
      }
      else{
        new_string += String.fromCharCode(code + 47)
      }
    }
  return new_string
})