// JavaScript Document
function openWindow(src)
{
	window.open(src);
	return false
}

function zobraz(obj) {
  document.getElementById(obj).style.display = "";
}

function skryj(obj) {
  document.getElementById(obj).style.display = "none";
}

function changeColor(obj) {
  document.getElementById(obj).style.color = "red";
}