pulsing menu items

I have a menu setup with the below css:

a.menu:active
    {
        color: #000000;

    }

    a.menu:hover
    {
        color: #FFFFFF;
        background-color:#000000;
        text-decoration: none;
    }

I am looking for a way to make the background color of certain items pulse in and out.

Slow fade from one color to another. Or fade between classes continu开发者_运维问答ously.

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http://jqueryui.com/demos/effect/

Look at pulsate

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Look in to adopting a javascript framework such as jQuery.

You will find the $(selector).animate() function very useful for this type of thing.