Package anim.js is composed of Animation.js and StyleTransition.js
anim.js:
    Animation
            |
            + StyleTransition
    Animation is purely a timing mechanism. To achieve CSS transition effects, 
    use StyleTransition.
First create an element in the HTML.
<div id="testNode" style="color: #9f7; background-color: #010;">change me</div>
    (The styles do not need to be in an inline style attribute.)
Next, create a StyleTransition:
<script type='text/javascript>
var newStyle = { 
    color: "#600",
    backgroundColor: "#f53"
};
var anim = new APE.anim.StyleTransition(
    "testNode",
    newStyle,
    2, 
    APE.anim.Transitions["accel"]);
</script>