Membuat Tulisan Terbalik

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Membuat Tulisan Terbalik</title>
<style type="text/css">
textarea { font-family: "Arial Unicode MS", terbalik }
</style>
<script language="JavaScript">
function flip() {
var result = flipString(document.f.original.value.toLowerCase());
document.f.flipped.value = result;
}
function flipString(aString) {
var last = aString.length - 1;
var result = new Array(aString.length)
for (var i = last; i >= 0; --i) {
var c = aString.charAt(i)
var r = flipTable[c]
result[last - i] = r != undefined ? r : c
}
return result.join('')
}
var flipTable = {
a : '\u0250',
b : 'q',
c : '\u0254',
d : 'p',
e : '\u01DD',
f : '\u025F',
g : '\u0183',
h : '\u0265',
i : '\u0131',
j : '\u027E',
k : '\u029E',
//l : '\u0283',
m : '\u026F',
n : 'u',
r : '\u0279',
t : '\u0287',
v : '\u028C',
w : '\u028D',
y : '\u028E',
'.' : '\u02D9',
'[' : ']',
'(' : ')',
'{' : '}',
'?' : '\u00BF',
'!' : '\u00A1',
"\'" : ',',
'<' : '>',
'_' : '\u203E',
'\\' : '/',
';' : '\u061B',
'\u203F' : '\u2040',
'\u2045' : '\u2046',
'\u2234' : '\u2235'
}
for (i in flipTable) {
flipTable[flipTable[i]] = i
}
</script>
</head>
<body linkifytime="0" linkified="0" linkifying="false">
<h1>Membuat Tulisan Terbalik</h1>
<form name="f">
Tulisan Asli: <br>
<textarea rows="6" cols="50" name="original" onkeyup="flip()"></textarea>
<br>
Tulisan Terbalik: <br>
<textarea rows="6" cols="50" name="flipped"></textarea>
</form>
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</body>
</html>