I have 4 tabs in a web page . I want to set default focus on first control while navigating to each tabs

I have 4 tabs in a web page . I want to set default focus on first control while navigating to each tabs 
<ul class="nav nav-pills nav-justified steps">                                 <li><a href="#tab1" data-toggle="tab" class="step"><span class="number">1 </span><span class="desc hidden-1024">View Service Request </span><span class="chevron-right"></span></a></li>                                 <li><a href="#tab2" data-toggle="tab" class="step"><span class="number&quo ...