I had a recurring error in IE "Invalid Argument" that was only resolved when I removed this piece of code...

if(set)

elem[name] = value;

return elem[name];

Code used to initialize functions below...

<script src="js/jquery1.3.2.js" type="text/javascript"></script>

<script src="js/common.js" type="text/javascript"></script>

<script type="text/javascript">

mylib.image_hover.init();

mylib.showreel.init();

</script>

Files are attached.