$.ajax({
type: "POST",
url: "ajax.php",
data:{'item_id01':item_id01},
dataType:json,
success: function(data){
$('#tht_02').html(data);
}
});
echo json_encode($array_of_your_needs);
$result = array(
'name' => 'foo',
'type' => 'bar');
echo json_encode($result );
function(data){
var name = data.name;
var type= data.type
}
;