is this cloaking

and can search engiens read it?

[nippi]

putting key words in your title but adding javactript such as this

<script language="JavaScript">
document.title = "My web site name";
</script>

[bhartzer]

No, that's not cloaking.

[volatilegx]

It might help disguise title text to human viewers, though.

I guess you could call it a form of client-side cloaking. Very easy to break, though.

[nippi]

my issue is, will search engine penalise for doing this.

[MonkeeSage]

If you set your title to one thing (e.g., fill of keyword unrelated to your site content), then afterwards set it using JS, I would say that would be cloaking (and spamming) on the assumption that the SEs don't interpret JS currently.

Jordan

[nippi]

If a search engine can't read it.

How can they penalise?

[MonkeeSage]

By a human looking at your site, or a competitor filling out a spam report.

Jordan

[volatilegx]

Also, remember that just because search engines don't execute JavaScript, it doesn't mean they can't read it. For instance, certain SEs are known to penalize for JavaScript redirects... they don't execute the redirect, but they sure as heck know it's there.