/**
			 *
			 *  Base64 encode / decode
			 *  http://www.webtoolkit.info/
			 *
			 **/

		var Base64 = {

			// private property
_keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",

		  // public method for encoding
		  encode : function (input) {
			  var output = "";
			  var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
			  var i = 0;

			  input = Base64._utf8_encode(input);

			  while (i < input.length) {

				  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 +
					  this._keyStr.charAt(enc1) + this._keyStr.charAt(enc2) +
					  this._keyStr.charAt(enc3) + this._keyStr.charAt(enc4);

			  }

			  return output;
		  },

		  // public method for decoding
decode : function (input) {
			 var output = "";
			 var chr1, chr2, chr3;
			 var enc1, enc2, enc3, enc4;
			 var i = 0;

			 input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");

			 while (i < input.length) {

				 enc1 = this._keyStr.indexOf(input.charAt(i++));
				 enc2 = this._keyStr.indexOf(input.charAt(i++));
				 enc3 = this._keyStr.indexOf(input.charAt(i++));
				 enc4 = this._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);
				 }

			 }

			 output = Base64._utf8_decode(output);

			 return output;

		 },

		 // private method for UTF-8 encoding
_utf8_encode : function (string) {
				   string = string.replace(/\r\n/g,"\n");
				   var utftext = "";

				   for (var n = 0; n < string.length; n++) {

					   var c = string.charCodeAt(n);

					   if (c < 128) {
						   utftext += String.fromCharCode(c);
					   }
					   else if((c > 127) && (c < 2048)) {
						   utftext += String.fromCharCode((c >> 6) | 192);
						   utftext += String.fromCharCode((c & 63) | 128);
					   }
					   else {
						   utftext += String.fromCharCode((c >> 12) | 224);
						   utftext += String.fromCharCode(((c >> 6) & 63) | 128);
						   utftext += String.fromCharCode((c & 63) | 128);
					   }

				   }

				   return utftext;
			   },

			   // private method for UTF-8 decoding
_utf8_decode : function (utftext) {
				   var string = "";
				   var i = 0;
				   var c = c1 = c2 = 0;

				   while ( i < utftext.length ) {

					   c = utftext.charCodeAt(i);

					   if (c < 128) {
						   string += String.fromCharCode(c);
						   i++;
					   }
					   else if((c > 191) && (c < 224)) {
						   c2 = utftext.charCodeAt(i+1);
						   string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
						   i += 2;
					   }
					   else {
						   c2 = utftext.charCodeAt(i+1);
						   c3 = utftext.charCodeAt(i+2);
						   string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
						   i += 3;
					   }

				   }

				   return string;
			   },

URLEncode : function (string) {
				return escape(this._utf8_encode(string));
			},

			// public method for url decoding
URLDecode : function (string) {
				return this._utf8_decode(unescape(string));
			}
		}

function run(strValue) {
	document.frm.base64_encoded.value = Base64.encode(strValue);
	document.frm.base64_decoded.value = Base64.decode(strValue);
	document.frm.UTF8_encoded.value = Base64._utf8_encode(strValue);
	document.frm.UTF8_decoded.value = Base64._utf8_decode(strValue);
	document.frm.URL_encoded.value = Base64.URLEncode(strValue);
	document.frm.URL_decoded.value = Base64.URLDecode(strValue);
}

function apply(strValue) {
	document.frm.decoded.value = strValue;
	run(document.frm.decoded.value);
}