window.onload = menuIdz;

function menuIdz() {
  document.getElementById("m1").onclick = strGlowna;
  document.getElementById("m2").onclick = strOmnie;
  document.getElementById("m3").onclick = strSklep;
  document.getElementById("m4").onclick = strKontakt;
}

function strGlowna() {
  window.location = "index.html";
  return false;
}

function strOmnie() {
  window.location = "ogalerii.html";
  return false;
}

function strSklep() {
  window.location = "sklep/";
  return false;
}

function strKontakt() {
  window.location = "kontakt.html";
  return false;
}