//<!--
 var wm_keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";

function wm_encode64(input) {
  var output = "";
  var chr1, chr2, chr3;
  var enc1, enc2, enc3, enc4;
  var i = 0;
  do {
     chr1 = input.charCodeAt(i++);
     chr2 = input.charCodeAt(i++);
     chr3 = input.charCodeAt(i++);

     enc1 = chr1 >> 2;
     enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
     enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
     enc4 = chr3 & 63;

     if (isNaN(chr2)) {
        enc3 = enc4 = 64;
     } else if (isNaN(chr3)) {
        enc4 = 64;
     }

     output = output + wm_keyStr.charAt(enc1) + wm_keyStr.charAt(enc2) +         wm_keyStr.charAt(enc3) + wm_keyStr.charAt(enc4);
  } while (i < input.length);
    return output;
}

function wm_decode64(input) {
  var output = "";
  var chr1, chr2, chr3;
  var enc1, enc2, enc3, enc4;
  var i = 0;

  // remove all characters that are not A-Z, a-z, 0-9, +, /, or =
  input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");

  do {
     enc1 = wm_keyStr.indexOf(input.charAt(i++));
     enc2 = wm_keyStr.indexOf(input.charAt(i++));
     enc3 = wm_keyStr.indexOf(input.charAt(i++));
     enc4 = wm_keyStr.indexOf(input.charAt(i++));

     chr1 = (enc1 << 2) | (enc2 >> 4);
     chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
     chr3 = ((enc3 & 3) << 6) | enc4;

     output = output + String.fromCharCode(chr1);

     if (enc3 != 64) {
        output = output + String.fromCharCode(chr2);
     }
     if (enc4 != 64) {
        output = output + String.fromCharCode(chr3);
     }
  } while (i < input.length);

  return output;
}

 
 //-->