Obscure data - not a safe way to encrypt data, but useful when you want to bring less attention to the data you're storing.

1.obscure.js

/**
 * 1. Reverse string
 * 2. Encode (base36) each character
 * 3. Reverse encoding of character (e.g. 2f becomes f2)
 * 4. Join each encoded character into a string delimited by "."
 * 5. Reverse string
 */
var obscure = function (str) {
	if (typeof str !== 'string') return str;
	var strEncoded = '', i;
	console.log('1',str);
	str = str.split('').reverse().join('');
	console.log('2',str);
	for(i = 0; i < str.length; i++) {
		strEncoded += '.' + parseInt(str.charCodeAt(i)).toString(36).split('').reverse().join('');
	}
	console.log('3',strEncoded);
	strEncoded = strEncoded.split('.').reverse().join('.');
	console.log('4',strEncoded);
	return strEncoded;
};

2.clarify.js

/**
 * 1. Split string by "."
 * 2. Reverse array
 * 3. Reverse each element
 * 4. Decode (base36) each element
 * 5. Join each element into a string
 * 6. Reverse string
 */
var clarify = function (str) {
	if (typeof str !== 'string') return str;
	var encodedList, strDecoded = '', i;
	console.log('1',str);
	encodedList = str.split('.').reverse();//.join('.'); //not joining because we need to decode each
	console.log('2',encodedList.join('.'));
	for(i = 0; i < encodedList.length; i++) {
		strDecoded += String.fromCharCode(parseInt(encodedList[i].split('').reverse().join(''),36));
	}
	console.log('3',strDecoded);
	str = strDecoded.split('').reverse().join('');
	console.log('4',str);
	return str;
};