JQuery :: Expanding DIV In Specific Direction

I have a div, and a container div. This div is my footer. I want to beable to slide items up out of the footer. However, when I use the toggle() and use marginTop/marginBottom it slides perfectly, but only expands the div downwards thus causing scrollbars to appear. Is it possible to define which way you would like a div to expand?

So just to be clear here is my code:<style>
#footer-container{
overflow:hidden;
z-index:100;
position:relative;
border:1px solid #f00;
width:1000px;
margin:auto;
}#footer{
width:1000px;
margin:auto;
height:32px !important;
background: url('../../img/footer/footer_bg.png') repeat-x;
font-family:Arial, Helvetica, sans-serif;
font-size:10px;
color:#555;
margin-bottom:0;
bottom:0;
padding:0;
}
<div id="footer-container">
<div id="footer">
some contend links etc..
</div></div>

As you can see from above there is an overflow of hidden set to the container div. The footer div has a height of 32px and bg image. The only way I can get this to work is if I put a postion:fixed on the #footer. This is not what I want, because it then remains on top/in position when scrolling the page. Is it possible to set a div's expansion direction in jQuery? The above expands the div downwards. I would like to expand it upwards.