Javascript fade in fade out without Jquery and CSS3

Question

I am really squeezing my head to make the simple fade in and fade out of the background image work only with javascript without JQuery and CSS3. I know how easy is to call a

Answer 1

If you do not care about IE7 - IE9, you can use very useful CSS3 transitions, something like this:

    .element {
        -webkit-transition: opacity 0.3s ease;
    }
    .element[faded=true] {
        opacity: 0;
    }

You will get very fast, native fade out effect without jQuery.

UPDATE: Sorry, i hadn't read quiestion title thoroughly.