http = getHTTPObject();

function getstates(documentid)
{        
    var Code = documentid;
     vUrl='kmeda_ajax/getstates.php?Code='+Code;
    //alert(vUrl);
    var isWorking = false;
    if(!isWorking)
    {
        http.open("POST", vUrl , true);
        isWorking = true;
        http.onreadystatechange = handleresponse_getstates;
        http.send(null);
    }
    
}
function handleresponse_getstates()
{                         
    if(http.readyState== 4)
    {
        isWorking = false;
        var valResponse_getstate="";
        valResponse_getstate= http.responseText;
       
        if(valResponse_getstate!= '')
        {
            document.getElementById('getstateselect').innerHTML = valResponse_getstate;
            document.getElementById('getstateselect').focus(); 
        }
        else 
            document.getElementById('getstateselect').innerHTML = '';
  }
}