//html
<div class="" >
<a href="#myTabContent0" id="js_active0" title="1" class="tab-select nav-tab nav-tab-active">1</a>
<a href="#myTabContent1" id="js_active1" title="2" class="tab-select nav-tab">2</a>
<a href="#myTabContent2" id="js_active2" title="3" class="tab-select nav-tab">3</a>
<a href="#myTabContent3" id="js_active3" title="4" class="tab-select nav-tab">4</a>
</div>
$('.tab-select').click(function() {
var $this = $(this);
var $id = $this.attr('href');
$('.nav-tab-wrapper a').removeClass('nav-tab-active');
$this.addClass('nav-tab-active');
})