var httpRequest_dotaz = null;

function poslatDotaz(id){
  var fid = 'form_dotaz_' + id;
  var eid = 'echo_dotaz_' + id;

  //init z formulare
  mail = document.forms[fid].email.value;
  jmeno = document.forms[fid].jmeno.value;
  dotaz = document.forms[fid].dotaz.value;
  nid = document.forms[fid].nid.value;

  if(window.ActiveXObject){
    httpRequest_dotaz = new ActiveXObject("Microsoft.XMLHTTP");
  }else{
    httpRequest_dotaz = new XMLHttpRequest();
  }

  httpRequest_dotaz.open("GET", "poslat-dotaz.php?m=" + mail + "&j=" + jmeno + "&d=" + dotaz + "&nid=" + nid, true);
  setEchoDotaz(eid, "Dotaz se odesílá ...");
  httpRequest_dotaz.onreadystatechange= function () {processRequest_dotaz(id); } ;
  httpRequest_dotaz.send(null);

  return;
}

function processRequest_dotaz(id){
  var eid = 'echo_dotaz_' + id;
  //alert(httpRequest_dotaz.responseText);
  if(httpRequest_dotaz.readyState == 4){
    if(httpRequest_dotaz.status == 200){
      if(httpRequest_dotaz.responseText == "-1"){
        
        setEchoDotaz(eid, "Dotaz nelze odeslat.");
      }else{
        setEchoDotaz(eid, "Dotaz byl odeslán.");
      }
    }else{
      setEchoDotaz(eid, "Dotaz nelze odeslat.");
    }
  }

  return;
}

function setEchoDotaz(echoID, str){
  var elem = document.getElementById(echoID);
  if(elem) elem.innerHTML = str;
  return;
}