exports.jsEncode = function(s,k) {
	//http://www.henryalgus.com/creating-basic-javascript-encryption-between-frontend-and-backend/
	var enc = "";
	var str = "";
	str = s.toString();
	for (var i = 0; i < s.length; i++) {
		var a = s.charCodeAt(i);
		var b = a ^ k;
		enc = enc + String.fromCharCode(b);
	}
	return enc;
}