/**
 * 'Tis2Unicode' function - by Jakob Kruse <kruse@kruse-net.dk>
 * Converts TIS-620 encoded Thai characters to Unicode
 *
 * Based on:
 *
 *   The Tis2Utf8 encoding converter at
 *   http://www.fedu.uec.ac.jp/ZzzThai/service/tis2utf8.html
 *
 * $Id: Tis2Unicode.js,v 1.1 2006/02/23 20:09:27 Jakob Kruse Exp $
 */

function tis2unicode(tis) {
  var unicode = "";
  for (i = 0; i < tis.length; i++) {
    var val = tis.charCodeAt(i);
    if (val < 0x80) {
      unicode += tis.charAt(i);
    } else if ((0xA1 <= val && val <= 0xDA) || (0xDF <= val && val <= 0xFB)) {
      unicode += String.fromCharCode(0x0E00 + val - 0xA0);
    }
  }
  return unicode;
}