JQuery / CSS - add color to un ordered list items

can someone help me create the following effect using JQuery?:

I have several un-ordered lists on a web page:

<ul><li>01</li><li>02</li><li>03</li><li>04</li><li>05</li><li>06</li><li>07</li><li>08</li></ul><ul><li>01</li><li>02</li><li>03</li><li>04</li><li>05</li><li>06</li><li>07</li><li>08</li></ul>

I want to apply CSS classes using JQuery to create the following:

<ul><li>01</li><li class="color">02</li><li class="color">03</li><li>04</li><li>05</li><li class="color">06</li><li class="color">07</li><li>08</li></ul><ul><li>01</li><li class="color">02</li><li class="color">03</li><li>04</li><li>05</li><li cl开发者_JAVA技巧ass="color">06</li><li class="color">07</li><li>08</li></ul>

(Thank you very much - in advance) - Jhollywood

$("ul li").each(function(i) {
if(i % 3 == 0) $(this).addClass("color");
});

Adjust the mod operation as necessary, your example is kinda misleading.

Try this:

$("ul > li").filter(":nth-child(4n-2), :nth-child(4n-1)").each(function() {
    $(this).addClass("color");
});