// JavaScript Document
uvod = new Image();
uvod.src = "images/layout/blue.png";

o_me = new Image();
o_me.src = "images/layout/orange.png";

nabidka = new Image();
nabidka.src = "images/layout/green.png";

reference = new Image();
reference.src = "images/layout/yellow.png";

kontakt = new Image();
kontakt.src = "images/layout/purple.png";

function zobrazSkryj(idecko){
el=document.getElementById(idecko).style;
el.display=(el.display == 'block')?'none':'block';
}