function changeCenterBanner(id,url)
{
	$('#top_center_banner a img').attr('src','/user_data/packages/default/images/top/center_banner'+id+'.jpg');
	$('#top_center_banner a').attr('href',url);
}


$('div.side_column div a').mouseover(function(event){

	url = $(this).attr('href');
	id = $(this).attr('id').substring(12,13);
	changeCenterBanner(id , url);

})