Meta tag language attribute

[ASchmitt]

What about the usage of the attribute lang="nl" in the meta-tags?

When you use this attribute f.i.

<meta name="description" lang="nl" content="Mijn website">
<meta name="description" lang="fr" content="Mon site">
<meta name="description" lang="en" content="My website">

(these tags are on one page)

Is it so that the spider will register each language version of this description and show the proper language to the surfer in the SERPS? So if I would use Google Dutch I would see "Mijn website", Google French "Mon site" and Google English "My website".

Is this attribute also usable for the title tag? <title lang="nl">Mijn site</title>

Grtz,
A