function odkaz(id) {
var main_div = document.getElementById("ramecek");
main_div.className = 'ramecek ramecek'+id;

var inner_div1 = document.getElementById("ram1");
var inner_div2 = document.getElementById("ram2");
var inner_div3 = document.getElementById("ram3");

var odkaz1 = document.getElementById("odkaz1");
var odkaz2 = document.getElementById("odkaz2");
var odkaz3 = document.getElementById("odkaz3");

var main_odkaz = document.getElementById("odkaz"+id);

odkaz1.className = "";
odkaz2.className = "";
odkaz3.className = "";
main_odkaz.className = "hover";

var main_inner_div = document.getElementById("ram"+id);
inner_div1.style.display = "none";
inner_div2.style.display = "none";
inner_div3.style.display = "none";
main_inner_div.style.display = "block";

}