It is very easy. First include the jQuery library then include the s3Slider javascript in the head of the page(s) where you want to use s3Slider.

<script src="js/jquery.js" type="text/javascript"></script>
<script src="js/s3Slider.js" type="text/javascript"></script> 

Important: For the script to work properly there is a set of rules that must be followed.

HTML

<div id="s3slider">
   <ul id="s3sliderContent">
      <li class="s3sliderImage">
          <img src="#" />
          <span>Your text comes here</span>
      </li>
      <li class="s3sliderImage">
          <img src="#" />
          <span>Your text comes here</span>
      </li>
      <div class="clear s3sliderImage"></div>
   </ul>
</div> 

Explanation

If you set that main div id is s3slider as we did here, that is the name that must be prefix for all other classes and id`s for that specific gallery (slide show). For example, if you set an id for main div as your_name, the inner id must be your_nameContent and the class .your_nameImage like in example above.

The second thing is that every .your_nameImage element in it self must have span. Also, the last div with class clear must also have an class of image holder in this case .your_nameImage. if you dont put that, the last image will NOT be shown in the slide show.

CSS

#s3slider {
   width: 400px; /* important to be same as image width */
   height: 300px; /* important to be same as image height */
   position: relative; /* important */
   overflow: hidden; /* important */
}

#s3sliderContent {
   width: 400px; /* important to be same as image width or wider */
   position: absolute; /* important */
   top: 0; /* important */
   margin-left: 0; /* important */
}

.s3sliderImage {
   float: left; /* important */
   position: relative; /* important */
   display: none; /* important */
}

.s3sliderImage span {
   position: absolute; /* important */
   left: 0;
   font: 10px/15px Arial, Helvetica, sans-serif;
   padding: 10px 13px;
   width: 374px;
   background-color: #000;
   filter: alpha(opacity=70); /* here you can set the opacity of box with text */
   -moz-opacity: 0.7; /* here you can set the opacity of box with text */
   -khtml-opacity: 0.7; /* here you can set the opacity of box with text */
   opacity: 0.7; /* here you can set the opacity of box with text */
   color: #fff;
   display: none; /* important */
   top: 0;

   /*
       if you put
       top: 0; -> the box with text will be shown at the top of the image
       if you put
       bottom: 0; -> the box with text will be shown at the bottom of the image
   */
}

.clear {
   clear: both;
} 

Then you need to initalize s3Slider and set the duration of how long will one picture be shown on the page (value is in miliseconds).

JS

$(document).ready(function() {
   $('#s3slider').s3Slider({
      timeOut: 4000
   });
});