window.addEvent('domready', function(){
    $$('#mainmenu a').each(function(e,i){
        var image;
        if(/^http:\/\/www\.bellcorporate\.pl/.test(e.href))
            image = "/img/roll/szkolenia-dla-firm.jpg";
        else
            image = "/img/roll/"+e.href.replace(window.location.href.split("?")[0],"")+".jpg";
        new Asset.images(image);
        e.addEvent('mouseover',function(e){
            $('content').setStyle('background','url('+image+') no-repeat top right');
            $$('#contentApla .rollover').setStyle('display','none');
            $$('#contentApla .rollover')[i].setStyle('display','block');
        })
        $$('#mainmenu a')[0].fireEvent('mouseover');
    });
})