var images = new Array();

function preload(imageSrc)
{
    var image = new Image();
    image.src = imageSrc;            
    images[images.length] = image;            
}

function zobrazitVelkyObrazek(link)
{
    var re = /.maly/g;
    var novyObrazek = link.childNodes[0].src.replace(re, "");
    velkyObrazek.src = novyObrazek;
}