Combobox reload problem !!!

[MFS]

Hello.
I have two combobox.
All si fine but one problem I cant fix at all.
After I check value in first combobox, next combobox did not do reload.
Value in second combobox is ok, but I need reload.
My code of combobox is:

Code:

<input id="cc" class="easyui-combobox" name="TipOdsustva" 
data-options="	
valueField: 'TipOdsustva',													
textField: 'TipOdsustva',
url: 'LookTipOdsustva.php',
onSelect: function(rec){
var url = 'LookTipOdsustvaDetail.php?id='+rec.TipOdsustva;
$('#cc1').combobox('reload', url);}"
style="width:70px">

<input id="cc1" class="easyui-combobox" name="TipOdsustvaNaziv" 
data-options="
valueField:'TipOdsustva',
textField:'Naziv'" 
style="width:191px">

My PHP code for firs combo:

Code:

<?php
	include 'Konekcija/Konekcija.php';
	
	$query = "
			SELECT SO.SOdsustvo AS TipOdsustva,
			WEB.fnPrilagodiTekst(SO.Naziv) AS Naziv
			FROM dbo.SOdsustvo AS SO
			";		
	$rs = sqlsrv_query($konekcija, $query);
	$items = array();
	while($row = sqlsrv_fetch_object($rs))
	{
      array_push($items, $row);
	}
    echo json_encode($items);
	sqlsrv_free_stmt( $query);

?>

My PHP for second combo:

Code:

<?php
$SOdsustvoSifra = htmlspecialchars($_REQUEST['id']);

	include 'Konekcija/Konekcija.php';
	
	$query = "
			SELECT SO.SOdsustvo AS TipOdsustva,
			web.fnPrilagodiTekst(SO.Naziv) AS Naziv
			FROM dbo.SOdsustvo AS SO WHERE SO.SOdsustvo =".$SOdsustvoSifra;	
	$rs = sqlsrv_query($konekcija, $query);
	$items = array();
	while($row = sqlsrv_fetch_object($rs))
	{
      array_push($items, $row);
	}
    echo json_encode($items);
	sqlsrv_free_stmt( $query);
?>

All is ok but still dit not make reload second combobox onSelect first combobox.
Do you have any idea?
Thanks.

[stworthy]

Please refer to this example http://jsfiddle.net/soq0t4p0/. The 'reload' method works fine.