jquery的滑动和渐变

<html>
<head><script language="javascript" src="jquery-1.2.6.js"></script>
<script language="javascript">
$(function(){
    $("#aa").click(function(){
        $("#aaa").animate(
        {left:"100px",top:"300px",opacity:"hide"}
        ,5000);
        });
});
</script>
<body>
<input type="button" id="aa" value="test"  />
<div id="aaa" style="position:absolute;top:10px;left:100px;background-color:Red">
aaaa
</div>
</body>
</html>