var xmlHttp

function showModul(str)
{ 
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }
var url="../../../modul/spray/get_obec_cast.php"
url=url+"?id_obec="+str
url=url+"&sid="+Math.random()


xmlHttp.onreadystatechange=function() { 
        if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
                stateChanged(xmlHttp);
    }

xmlHttp.open("GET",url,true)
xmlHttp.send(null)

}

function stateChanged(req)
{ 
document.getElementById("zobraz_casti_obec").innerHTML=req.responseText 
}

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;
}