WhiteAcid

Rot13 = {    map: null,    convert: function(a) {        Rot13.init();        var s = "";        for (i=0; i < a.length; i++) {            var b = a.charAt(i);            s += ((b>='A' && b<='Z') || (b>='a' && b<='z') ? Rot13.map[b] : b);        }        return s;    },    init: function() {        if (Rot13.map != null)            return;                      var map = new Array();        var s   = "abcdefghijklmnopqrstuvwxyz";        for (i=0; i<s.length; i++)            map[s.charAt(i)] = s.charAt((i+13)%26);        for (i=0; i<s.length; i++)            map[s.charAt(i).toUpperCase()] = s.charAt((i+13)%26).toUpperCase();        Rot13.map = map;    },    write: function(a) {        document.write(Rot13.convert(a));    }}