is there a moo-expression for the jquery .is()

[Hamburger]

Hello,
one more beginner question please.
Is there a moo-expression for the jquery .is()

Here the jquery code:
    if ($(e.target).is('.avgrund-overlay, .avgrund-close')) { deactivate(); }

thx for any hint

[Arian Stolwijk]

What does it do? It looks like it's the same as .match() - http://mootools.net/docs/core/Element/Element#Element:match

[Hamburger]

Thanks Arian,
is works with el:match
I could'nt find it in the docs ;(