Alternate three and three rows in a table with jQuery
<p>I want to set the alternate background color for rows in a table - but the twist is that I don't want every other row to be colored, I want to treat them in blocks of three rows.</p>

<p>So for a table with eight rows I want the first three to be white, then the next three to have a background color, and the last two are back to white again.</p>

<p>How can I do this using jQuery?</p>
