document.observe('dom:loaded', function () { 
   randomimage();

});

window.onload = function () { 
$('head').setStyle({display: 'none'});
Effect.Fade('overlay', { duration: 0.3, afterFinish: function() {Effect.SlideDown('head');}});

//window.scrollBy(227,0);

window.scrollBy(-20000,0);

skrolli = $('container').getWidth() - document.viewport.getWidth();
skrolli = skrolli / 2;
window.scrollBy(skrolli,0);


}


function randomimage() {
    
    kuvat = 6;
    
    rand = Math.ceil(Math.random()*kuvat);
   // alert(rand);
    $('header').setStyle({backgroundImage: 'url("/images/ylakuvat/'+rand+'.jpg")'});

}