Scroll with javascript

Hi,

I need to scroll a div to the bottom with javascript.
I'm doing it calling the method I created:

``` javascript
function scroll_to_bottom(elem){
    $(elem).each(function( index ) {
        $(this).scrollTop($(this)[0].scrollHeight)
    });
}
```

Unfortunately, it doesn't work, though it works fine when I'm not using lionbars.
