[jQuery] scrollTop on jQuery object

[Arrviasto]

Hi!
I have to use scrollTop and scrollHeight properties, but on jQuery
object it returns `undefined`. Is there any method to get this
property from jq object?

It doesn't matter, but my object looks like this:

var $win = $(this) // div on my page
var $msgs = $win.find('.msgs');


$msgs.scrollHeight returns 'undefined'

Thanks,
Arrviasto (Poland)