loader - 如何在选项卡单击上添加加载程序

Question

谁能帮我添加这个来导航扔标签。我希望它有某种装载机只是为了外观。

http://jsfiddle.net/3KAnM/33/装载机

选项卡示例：

            <ul class="nav nav-tabs" role="tablist">
                <li role="presentation" class="active"><a href="#north-america" aria-controls="home" role="tab" data-toggle="tab"><i class="fa fa-globe"></i>  <span>NORTH AMERICA</span></a></li>
                <li role="presentation"><a href="#europe" aria-controls="profile" role="tab" data-toggle="tab"><i class="fa fa-globe"></i>  <span>EUROPE</span></a></li>
                <li role="presentation" class="unverifiedna"><a href="#unverifiedna" aria-controls="profile" role="tab" data-toggle="tab"><i class="fa fa-globe"></i>  <span>NA UNVERIFIED</span></a></li>
                <li role="presentation" class="unverifiedeuw"><a href="#unverifiedeuw" aria-controls="profile" role="tab" data-toggle="tab"><i class="fa fa-globe"></i>  <span>EUW UNVERIFIED</span></a></li>
                <li role="presentation" class="pbe"><a href="#pbe" aria-controls="profile" role="tab" data-toggle="tab"><i class="fa fa-globe"></i>  <span>PBE</span></a></li>