function frm_onSubmitEditTopicForm() {
	if (
		(XPS_elem('categoryid', true) && !XPS_elem('categoryid').value) ||
		!XPS_elem('topic').value ||
		!XPS_elem('frmmessage').value
	) {
		alert('All fields are required...');
		return;
	}
	
	XPS_submit('topic_edit_form');
}