What do you think about this email encoder script?

[kublai]

I found this javascript wich claims to hide an email address from spambots.
Is it good in your opinion? I'm not a programmer and I'd like to know your opinions.

<script language="JavaScript" type="text/javascript">
// Example of usage with email address: [email]my-email-address@my-domain-name.com[/email]
///////////////////////////////////////////////////////////////
// Encoded variables - do not modify 
var asciiend=(';'); // ascii code for ; - don't change it
var a1=('ma&#1')+('05'); // ascii code for mai - don't change it
var a2=('lto&#')+('58'); // ascii code for lto: - don't change it
var a4=('&#')+('46'); // ascii code for . (dot) - don't change it
var a5=('&#')+('64'); // ascii code for @ (at) - don't change it
var a6=('?')+('su&#098'); // ascii code for ?sub - don't change it
var a7=('ject')+('&#61'); // ascii code for ject= - don't 
change it
///////////////////////////////////////////////////////////////
// Link text or image - link title - email subject -  modify to your liking
var text=('Click here'); // link text - change it to your liking or use an image: 
<img src="image_path.gif">
var titl=('Send email to:'); // link title - change it to your liking
var subj=('Enter an email subject here'); // email subject - change it to what 
you prefer
///////////////////////////////////////////////////////////////
// Beginning of email variables - modify to match your email address
var part1=('my-email-address'); // first part of address (before @) - change it 
to match your address
var part2=('my-domain-name'); // second part of address (after @) - change it to 
match your address
var part3=('com'); // last part of address (.com .net .org - etc.) - change it 
to match your address
// End of email variables
///////////////////////////////////////////////////////////////
// encode and put parts of address together
var em=(encodeURIComponent(('<')+('a ')+('hr')+('ef')+('=')+('"'))+(''+ a1 +'')+
(''+ asciiend +''));
var ai=(encodeURIComponent((''+ a2 +'')+(''+ asciiend +'')+(''+ part1 +'')+
(''+ a5 +'')));
var l=(''+ part2 +'');
var ad=(''+ a4 +'');
var dr=(''+ part3 +'');
var es=(encodeURIComponent(''+ a6 +'')+(''+ asciiend +''));
var s=(encodeURIComponent((''+ a7 +'')+(''+ asciiend +'')+(''+ subj +'')+('"')+
(' ')+('ti')+('tle')+('=')+('"')+(''+ titl +'')+(' ')+('' + part1 +'')+
(''+ a5 +'')+(''+ asciiend +'')+(''+ part2 +'')+(''+ a4 +'')+(''+ asciiend +'')+
(''+ part3 + '')+('">')+(''+ text +'')+('</')+('a>')));
var address=(escape((decodeURIComponent(''+ em +''))+(decodeURIComponent
(''+ ai +''))+(''+ l +'')+(''+ ad +'')+(''+ dr +'')+(decodeURIComponent
(''+ es +''))+(decodeURIComponent(''+ s +''))));
// decode and write address
document.write(unescape(''+ address +''));
</script>

[hexburner]

I wouldn't use any JS at all to do something as small as that.
I'd make an image for the e-mail address to protect it from spam.

[kublai]

That's perfectly true, but I want something to be clickable. Images are not practical, in my opinion.

[markbrown4]

No, javascript isn't a good technology to use for this. A server side language process to obfuscate the email address is the best thing I know of to hide email addresses. Nothing is fool proof though - just get a good anti-spam filter that will not stop the spammers - but it will stop you from having to look at the email.

For example my name obfuscated is the following(without the spaces).

& #109;& #097;& #114;& #107;

mark