I'm currently using the following code so that when I hover over my navigation images it fades then in when hovered over.

Code:
<script type="text/javascript">$(function() {$(".fade-in").css("opacity","0");$(".fade-in").hover(function () {$(this).stop().animate({opacity: 1.0}, "220");},function () {$(this).stop().animate({opacity: 0}, "2000");});});</script>
It works fine but when I have any other javascripts, such as a lightbox or image swapper, only one of them works. I want a lightbox script on the page so I need to figure out how to get both scripts working together. Note I'm not java developer, I just copied and pasted the code for my website so it's entirely possible, and probable, that I'm making a fundamental error here.

Thanks for any help.