[jQuery] : Selecting value from html

[jQuery] : Selecting value from html

<div class="gmail_quote">Hello!
I've got some question:
I've got variable 'tr' which contains html or text from table row.
How I can read text from second <td> tag. This tag contains _colid=2
attribute.
I was trying to do something like that:
$(tr ':'td:(eq(2))').text(); but it's not working.
Cheers
Radek</div>