function so(x) {
var x;
document.all[x].className = 'go';
//document.all[x].style.visibility = 'visible';
}

function ho(x) {
var x;
document.all[x].className = 'pop';
//document.all[x].style.visibility = 'hidden';
}

function lo(x) {
var x;
document.all[x].src='vybir_files/'+x+'1.jpg';
}
function ulo(x) {
var x;
document.all[x].src='vybir_files/'+x+'.jpg';
}

function slo(x,y) {
var x;
var y;
document.all[x].className = 'go';
document.all[y].style.backgroundColor='#999999';
}

function hulo(x,y) {
var x;
var y;
document.all[x].className = 'pop';
document.all[y].style.backgroundColor='#DDDDDD';
}