IE error with slider

[zeaks]

I have nivo slider installed into my wordpress theme. I'm getting an error with IE8 line 29 char 1 which is

jQuery(window).load(function() {

Any ideas on how to get rid of it?
This is the site I get the error on http://test.zeaks.org/uncategorized/demo-post-11/

It doesn't show an error on the main page for some reason, only when I'm on the post page
This is the code I have in my header.php

	wp_head();
?>

<script type="text/javascript">
jQuery(window).load(function() {
    jQuery('#slider').nivoSlider({
        effect:'random', //Specify sets like: 'fold,fade,sliceDown'
        slices:15,
        animSpeed:500, //Slide transition speed
        pauseTime:5000,

    });
});
</script>
</head>

Thanks for any help