function validateFormOnSubmit(theForm) {
var reason = "";

reason += validateEmpty(theForm.cegnev);
reason += validateEmpty(theForm.cegutonev);
reason += validateEmpty(theForm.rovnev);
reason += validateEmpty(theForm.szekhely);
reason += validateEmpty(theForm.kozpont);
reason += validateEmpty(theForm.cegmail);
reason += validateEmpty(theForm.fotev);

reason += validateEmpty(theForm.tag1);
reason += validateEmpty(theForm.an1);
reason += validateEmpty(theForm.cim1);
reason += validateEmpty(theForm.szhely1);
reason += validateEmpty(theForm.szdatum1);
reason += validateEmpty(theForm.adojel1);

reason += validateEmpty(theForm.jegyt);
reason += validateEmpty(theForm.tag1toke);
reason += validateEmpty(theForm.alairdate);
reason += validateEmpty(theForm.nev);
reason += validateEmpty(theForm.email);
reason += validateEmpty(theForm.mobil);

      
  if (reason != "") {
    alert("Hiba az adatlapon!\n\n A csillaggal jelölt mezők kitöltése kötelező!!!" + reason);
    return false;
  }

  return true;
}
function validateEmpty(fld) {
    var error = "";
 
    if (fld.value.length == 0) {
        fld.style.background = '#D5FC7F'; 
        error = " "
    } else {
        fld.style.background = 'White';
    }
    return error;  
}