function OnPostback()
{
# get object
$this->o_category = $this->o_edit->GetDataObject();
# save data if valid
if ($this->IsValid()) {
$i_id = $this->o_category_manager->Save($this->o_category);
$this->o_category->SetId($i_id);
# Update category cache with changes
$this->o_category_manager->UpdateHierarchyData($this, 'GetCategoryNavigateUrl');
$this->SetCategories($this->GetAllCategories());
$this->OnCreateSiteContext();
$this->Redirect("/yesnosorry/categorylist.php");
}
}