How to build simple tabs with jQuery?

I am guessing your website is having problems with href, i presume that when user clicks a href, website automatically eradicating itself.

Here is new solution’s jsFiddle.

I have a new solution for you:

updated jQuery:

$('#tabs li a').click(function(){
  var t = $(this).attr('id');

  if($(this).hasClass('inactive')){ //this is the start of our condition 
    $('#tabs li a').addClass('inactive');           
    $(this).removeClass('inactive');

    $('.container').hide();
    $('#'+ t + 'C').fadeIn('slow');
 }
});

---

new html markup:

<ul id="tabs">

      <li><a id="tab1">test1</a></li>
      <li><a id="tab2">test2</a></li>
      <li><a id="tab3">test3</a></li>
      <li><a id="tab4">test4</a></li>

</ul>
<div class="container" id="tab1C">1Some content</div>
<div class="container" id="tab2C">2Some content</div>
<div class="container" id="tab3C">3Some content</div>
<div class="container" id="tab4C">4Some content</div>