Editing Custom Homepage from another developer

Hi Everyone,

I’m new here, as well as fairly new to wordpress. I’ve done a fair amount of PHP and various other web scripting languages, but I’m no expert. My boss has asked me to take a wordpress site (small — about 2 – 3 pages) and recreate it with different colors and images ~ 10 times.

I’ve been digging through this code trying to figure out a slideshow on the home page of these websites. The code for this slideshow is located in a file called template-homepage.php. This design only appears on the homepage and is generating these slide show images dynamically. The problem is that I can’t find where the array containing image and link URLs is being populated. Could this be a plugin? If so, I’m unable to find the plugin from the dashboard. Here is the code:

<div id="slider" style="width:<?php get_option_tree('homepage_slider_width', '', true); ?>px; height:<?php get_option_tree('homepage_slider_height', '', true); ?>px">

                    <?php
                    $slides = get_option_tree('homepage_slider', '', false, true, -1);
                    $i=0;
                    $string_resize = '';
                    if(get_option_tree('homepage_slider_autoresize', '', false)=='on')
                        $string_resize = ' width="' .  get_option_tree('homepage_slider_width', '', false) . '" height="' .  get_option_tree('homepage_slider_height', '', false) . '"';

                    for($i=0;$i<count($slides);$i++){
                        echo '<a href="' . $slides[$i]['link'] . '" class="' . $slides[$i]['class'] . '"><img src="' . $slides[$i]['image'] . '" alt="' . $slides[$i]['title'] . '"' . $string_resize . ' /></a>
    ';

                    }
                    ?>
                </div><!-- End SLIDES -->

I can post more if need be. I’ve tried to figure out what this get_option_tree() function is all about but the information I’ve found so far has been of little use. I would really appreciate at least a push in the right direction. Thanks in advance!