//Code Javascript
<script src="http://data.fandung.com/js/jquery-1.3.1.min.js" type="text/javascript"></script>
<script type="text/javascript">

$(document).ready(function() {


//Get all the LI from the #tabMenu UL
$('#tabMenu > li').click(function(){

//remove the selected class from all LI
$('#tabMenu > li').removeClass('selected');

//Reassign the LI
$(this).addClass('selected');

//Hide all the DIV in .boxBody
$('.boxBody div').slideUp('1500');

//Look for the right DIV in boxBody according to the Navigation UL index, therefore, the arrangement is very important.
$('.boxBody div:eq(' + $('#tabMenu > li').index(this) + ')').slideDown('1500');

}).mouseover(function() {

//Add and remove class, Personally I dont think this is the right way to do it, anyone please suggest
$(this).addClass('mouseover');
$(this).removeClass('mouseout');

}).mouseout(function() {

//Add and remove class
$(this).addClass('mouseout');
$(this).removeClass('mouseover');

});

//Mouseover with animate Effect for Category menu list
$('.boxBody #category li').mouseover(function() {

//Change background color and animate the padding
$(this).css('backgroundColor','#888');
$(this).children().animate({paddingLeft:"20px"}, {queue:false, duration:300});
}).mouseout(function() {

//Change background color and animate the padding
$(this).css('backgroundColor','');
$(this).children().animate({paddingLeft:"0"}, {queue:false, duration:300});
});

//Mouseover effect for Posts, Comments, Famous Posts and Random Posts menu list.
$('.boxBody li').click(function(){
window.location = $(this).find("a").attr("href");
}).mouseover(function() {
$(this).css('backgroundColor','#888');
}).mouseout(function() {
$(this).css('backgroundColor','');
});

});

</script>

// Code CSS
<style>

#tabMenu {margin:0;padding:0 0 0 15px;list-style:none;}
#tabMenu li {float:left;height:32px;width:39px;cursor:pointer;cursor:hand}

li.comments {background:url(images/tabComment.gif) no-repeat 0 -32px;}
li.posts {background:url(images/tabStar.gif) no-repeat 0 -32px;}
li.category {background:url(images/tabFolder.gif) no-repeat 0 -32px;}
li.famous {background:url(images/tabHeart.gif) no-repeat 0 -32px;}
li.random {background:url(images/tabRandom.gif) no-repeat 0 -32px;}

li.mouseover {background-position:0 0;}
li.mouseout {background-position:0 -32px;}
li.selected {background-position:0 0;}

.box {width:227px}
.boxTop {background:url(images/boxTop.gif) no-repeat;height:11px;clear:both}
*html .boxTop {margin-bottom:-2px;}
.boxBody {background-color:#282828;}
.boxBottom {background:url(images/boxBottom.gif) no-repeat;height:11px;}

.boxBody div {display:none;}
.boxBody div.show {display:block;}
.boxBody #category a {display:block;}

.boxBody div ul {margin:0 10px 0 25px;padding:0;width:190px;list-style-image:url(images/arrow.gif)}
*html .boxBody div ul {margin-left:10px;padding-left:15px;}
.boxBody div li {border-bottom:1px dotted #8e8e8e; padding:4px 0;cursor:hand;cursor:pointer;}
.boxBody div ul li.last {border-bottom:none}
.boxBody div li span {font-size:8px;font-style:italic; color:#888;}
</style>

// Code HTML
<div class="box">

<ul id="tabMenu">
<li class="posts selected"></li>
<li class="comments"></li>
<li class="category"></li>
<li class="famous"></li>
<li class="random"></li>
</ul>

<div class="boxTop"></div>

<div class="boxBody">

<div id="posts" class="show">
<ul>
<li>Post 1.</li>
<li>Post 2.</li>
<li>Post 3.</li>
<li class="last">Post 4.</li>
</ul>
</div>

<div id="comments">
<ul>
<li><a>Commet 1. <span> - Author 1</span></a></li>
<li><a>Commet 2. <span> - Author 2</span></a></li>
<li><a>Commet 3. <span> - Author 3</span></a></li>
<li class="last"><a>Commet 4. <span> - Author 4</span></a></li>
</ul>
</div>

<div id="category">
<ul>
<li><a href="#">css-html</a></li>
<li><a href="#">javascript</a></li>
<li><a href="#">logo</a></li>
<li class="last"><a href="#">Blogger</a></li>
</ul>
</div>

<div id="famous">
<ul>
<li>List famous 1.</li>
<li>List famous 2.</li>
<li>List famous 3.</li>
<li class="last">List famous 4.</li>
</ul>
</div>

<div id="random">
<ul>
<li>Random post 1.</li>
<li>Random post 2.</li>
<li>Random post 3.</li>
<li class="last">Random post 4.</li>
</ul>
</div>

</div>

<div class="boxBottom"></div>

</div>