window.onscroll function overriding and breaking other plugins/themes

Hi,

Your window.onscroll function defined in custom.js line 104 is overriding the function defined in my theme and is breaking some functionality there.

SFSI("#sfsi_floater"), window.onscroll = e;

So I wanted to suggest changing that to window.addEventListener to avoid conflicts with other themes/plugins in general.

SFSI("#sfsi_floater"), window.addEventListener("scroll", e);

I already reached out to the theme developers to have them change their code to window.addEventListener as well.

Thanks,
Brian