<script src="pjax.js"></script>

<script type="text/javascript">
    $(function(){
        $('a').pjax({
            dataType:'json',
            success:function(response){//参考ajax
                
            },
            error:function(response){//参考ajax
                
            },
            before:function(){
                
            },
            complete:function(){//参考ajax
                
            }
        });
    });
</script>

<script type="text/javascript">
    $(document).on('click','.breadcrumb a',function(e){
			$(this).pjax({
				url:this.href,//需要跳转的地址
				event:e,//事件
				dataType:'json',
				success:function(response){
					
				},
				error:function(response){
					
				},
				before:function(){
					
				},
				complete:function(){
					
				}
			});
		});
</script>

function is_pjax(){
    return array_key_exists('HTTP_X_PJAX', $_SERVER) && $_SERVER['HTTP_X_PJAX'];
}

$id = $this->_get('id', 'intval');
$info = $mod->find($id);
$this->assign('info', $info);
if (is_pjax()) {
    $response = $this->fetch();
    $this->display('response');
} else {
    $this->display();
}