text: /*##############################################################################
  #    HPCC SYSTEMS software Copyright (C) 2012 HPCC Systems®.
  #
  #    Licensed under the Apache License, Version 2.0 (the "License");
  #    you may not use this file except in compliance with the License.
  #    You may obtain a copy of the License at
  #
  #       http://www.apache.org/licenses/LICENSE-2.0
  #
  #    Unless required by applicable law or agreed to in writing, software
  #    distributed under the License is distributed on an "AS IS" BASIS,
  #    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  #    See the License for the specific language governing permissions and
  #    limitations under the License.
  ############################################################################## */
  
  var BASE64_enc = "ABCDEFGHIJKLMNOP" +
              "QRSTUVWXYZabcdef" +
              "ghijklmnopqrstuv" +
              "wxyz0123456789+/" +
              "=";
  
  function base64_encode(str) 
  {
      var result = "";
      var c1, c2, c3 = "";
      var e1, e2, e3, e4 = "";
      var i = 0;
  
      while(i < str.length) 
      {
          c1 = str.charCodeAt(i++);
          c2 = str.charCodeAt(i++);
          c3 = str.charCodeAt(i++);
  
          e1 = c1 >> 2;
          e2 = ((c1 & 3) << 4) | (c2 >> 4);
          e3 = ((c2 & 15) << 2) | (c3 >> 6);
          e4 = c3 & 63;
  
          if (isNaN(c2)) 
          {
              e3 = 64;
              e4 = 64;
          } 
          else if (isNaN(c3)) 
          {
              e4 = 64;
          }
  
          result = result + BASE64_enc.charAt(e1) + BASE64_enc.charAt(e2) + 
                  BASE64_enc.charAt(e3) + BASE64_enc.charAt(e4);
          c1 = c2 = c3 = "";
          e1 = e2 = e3 = e4 = "";
      } 
  
      return result;
  }
  