try this code.....
<script type="text/javascript">
if ($.browser.msie) {
// Put your Activebar calling code in here
$(function() {
// Everything inside this function will be automatically executed
// after the page has been loaded and the DOM is complete
$('<div></div>').html('Internet Explorer. This information bar is loaded with this page and can contain useful information for users.').activebar();
});
} else {
$(function() {
// Everything inside this function will be automatically executed
// after the page has been loaded and the DOM is complete
$('<div></div>').html('This information bar is loaded with this page and can contain useful information for users.').activebar();
});
}
</script>