function odkaz(index)
  {
    if(index==1) { location.href='index.htm'; };
    if(index==2) { location.href='o_nas.htm'; };
    if(index==3) { location.href='sortiment.htm'; };
    if(index==4) { location.href='iso_cert.htm'; };
    if(index==5) { location.href='kontakt.htm'; };
  };

function omOver(index)
  {
    var obj = document.getElementById(index+'ah');
    obj.style.color = "#044C85";
  };

function omOut(index)
  {
    var obj = document.getElementById(index+'ah');
    obj.style.color = "#525252";
  };