ConvertOfHexAcsii.js

function hex2ascii(hex) {
  var str = '';
  for (var i = 0; i < hex.length; i += 2)
    str += String.fromCharCode(parseInt(hex.substr(i, 2), 16));
  return str;

};

function ascii2hex(ascii) {
  var tempstr = '';
  for (a = 0; a < ascii.length; a = a + 1) {
    var tmpChar = ascii.charCodeAt(a).toString(16);
    if (tmpChar.length < 2) {
      tempstr = tempstr + "0" + tmpChar;
    } else {
      tempstr = tempstr + tmpChar;
    }
  }
  return tempstr;
};