[jQuery] Trouble selecting a P inside a repeating DIV

[Tobias]

Hello - My basic code is something like

<div class="insidepost">
<p>paragraph 1</p>
<p>paragraph 2</p>
<p>paragraph 3</p>
</div>

<div class="insidepost">
<p>paragraph 1</p>
<p>paragraph 2</p>
<p>paragraph 3</p>
</div>

I was hoping to use

                $(".insidepost p:eq(1)").addClass("cambottomline");

                $(".insidepost p:eq(2)").addClass("cambuy");

Only works on the first div though.  Any suggestions for selecting the
same certain P in each div?

Thank you,
Tobias