IE 11 bouncing of the fixed div when using the mouse scroll wheel

[vandanagopal]

Hi,
Great plugin, thanks. I faced an issue where in IE, the div that I have fixed bounces when I scroll using my mouse scroll wheel. It only bounces when I scroll first from the top of the page down, but after that is fine. After I return to the top of the page and try to scroll again, it bounces.
I debugged your code and came up with a modified fix. I have attached it here.
I modified the _onscroll function to detect if the scrollTop=0 and if the user is scrolling down.
Also, saw that removing this line from the _start function
$(window).bind('scroll', this._proxied_onscroll(false));
it worked just as well without it.
fixto.zip