<!--


function CheckForNull (theForm) {

  if ((theForm.Firma.value == "") ||
     (theForm.Kontakt.value == "") ||
     (theForm.Ulice.value == "") ||
     (theForm.Mesto.value == "") ||
     (theForm.PSC.value == "") ||
     (theForm.Telefon.value == ""))
  {
    alert("Prosím, vyplňte údaje označené hvězdičkou.");
    theForm.Firma.focus();
    return false;
  }
  return true; 
}

function OW_openBrWindow(theUrl, winName, features){
secondWindow=window.open(theUrl, winName, features);
}

function change_image(obr,nazev) 
{ 
obr.src= nazev + ".jpg"; 
return false;
}

function change_image2(obr,nazev) 
{ 
obr.src= nazev + ".gif"; 
return false;
}




//-->