var glsetyp = glselid = "";

function GetXmlHttpObject(){
  var xmlHttp=null;

  try{
    // Firefox, Opera 8.0+, Safari
    xmlHttp=new XMLHttpRequest();
  }
  catch(e){
    // Internet Explorer
    try{
      xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
    catch(e){
      xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
  return xmlHttp;
}

function stateChanged(){
  if(xmlHttp.readyState == 4 || xmlHttp.readyState == "complete"){ 
    var retext = xmlHttp.responseText;

    var poletext = retext.split("|");

    document.getElementById('doprava').innerHTML = poletext[0];
    document.getElementById('tabulka').innerHTML = poletext[1];

	if(document.getElementById('seldopr').options[document.getElementById('seldopr').selectedIndex].value){zobr_doprplat(document.getElementById('seldopr').options[document.getElementById('seldopr').selectedIndex].value,poletext[2],poletext[3],poletext[4],poletext[5]);}
  }
}

function predej_url(url){
  if(url){
    xmlHttp = GetXmlHttpObject();
    if(xmlHttp==null){
      window.alert("Vaš prohlížeč nepodporuje HTTP požadavky!");
      return
    } 
    xmlHttp.onreadystatechange = stateChanged;
    xmlHttp.open("GET",url,true);
    xmlHttp.send(null);
	
  }
}

function objednavka(did,stat,doprava){
    if(did){

	  var url = "/ajax/objednavka.php?did="+did+"&doprava="+doprava+"&stat="+stat;
      predej_url(url);
    }
    else{
      document.getElementById('doprava').innerHTML = "";
      document.getElementById('tabulka').innerHTML = "";
    }

}