Image slider in frontpage is not working

this is the website that I am trying to fix "https://dsllc.com/". In the homepage the image slider is only loading continuously but showing nothing. I don’t have web development programming knowledge. I have attached the header.php file below. If I delete the following lines
"

”

from the header.php the the total slider is gone from the homepage but I need the slider and I don’t know which line is doing the trick and how to add an image link there. I can delete these lines and add smart slider 3 php code inside the code and get a fix but I want to know how to fix the existing code. Thanks a lot.

$default_colorscheme) $colorSchemePath = strtolower($colorScheme) . ‘/’; ?>

>

; charset=” />

” type=”text/css” media=”screen” />
RSS Feed” href=”” />
Atom Feed” href=”” />
” />
” type=”text/css” media=”screen” />
RSS Feed” href=”” />
Atom Feed” href=”” />
” />

/css/ie6style.css” />
/js/DD_belatedPNG_0.0.8a-min.js”>
DD_belatedPNG.fix(‘img#logo, #cat-nav-left, #cat-nav-right, #search-form, #cat-nav-content, div.top-overlay, .slide .description, div.overlay, a#prevlink, a#nextlink, .slide a.readmore, .slide a.readmore span, .recent-cat .entry .title, #recent-posts .entry p.date, .footer-widget ul li, #tabbed-area ul#tab_controls li span’);

/css/ie7style.css” />

/css/ie8style.css” />

document.documentElement.className = ‘js’;

function disableThreeLinks(){
var servicesMenu = document.getElementById(“menu-item-364”);
var projectsMenu = document.getElementById(“menu-item-363”);
var modelingToolsMenu = document.getElementById(“menu-item-362″);

servicesMenu.firstChild.onclick = function(){ return false; };
projectsMenu.firstChild.onclick = function(){ return false; };
modelingToolsMenu.firstChild.onclick = function(){ return false; };
}

//’);
//]]>

onload=”disableThreeLinks()” >
document.location.href = “../’.$newUrl.'” ‘);
}
?>

<div id="header-top" class="clearfix">
    <div class="container clearfix">
        <!-- Start Logo -->
        <?php  $colorFolder = '';
        if ( $colorScheme == 'Light' || $colorScheme == 'Red' || $colorScheme == 'Blue') $colorFolder = $colorSchemePath; ?>

        <h1 style="position: absolute; top: -9999px; left: -9999px;">Dynamic Solutions</h1>
        <a href="<?php bloginfo('url'); ?>">
            <?php $logo = (get_option('thesource_logo') <> '') ? get_option('thesource_logo') : get_bloginfo('template_directory').'/images/'.$colorFolder.'logo.png'; ?>
            <img src="<?php echo esc_url($logo); ?>" alt="<?php echo esc_attr(get_bloginfo('name')); ?>" id="logo"/>
        </a>

        <p id="slogan"><?php bloginfo('description'); ?></p>
        <!-- End Logo -->

        <!-- Start Page-menu -->
        <div id="page-menu">
            <div id="p-menu-left"> </div>
            <div id="p-menu-content">

                <?php $menuClass = 'nav clearfix';
                $primaryNav = '';

                if (function_exists('wp_nav_menu')) $primaryNav = wp_nav_menu( array( 'theme_location' => 'primary-menu', 'container' => '', 'fallback_cb' => '', 'menu_class' => $menuClass, 'echo' => false ) );
                if ($primaryNav == '') show_page_menu($menuClass);
                else echo($primaryNav); ?>

            </div>
            <div id="p-menu-right"> </div>
        </div>  <!-- end #page-menu --> <div class="clear"></div>
        <!-- End Page-menu -->

        <div id="cat-nav" class="clearfix">
            <div id="cat-nav-left"> </div>
            <div id="cat-nav-content">

                <?php $menuClass = 'superfish nav clearfix';
                $secondaryNav = '';

                if (function_exists('wp_nav_menu')) $secondaryNav = wp_nav_menu( array( 'theme_location' => 'secondary-menu', 'container' => '', 'fallback_cb' => '', 'menu_class' => $menuClass, 'echo' => false ) );
                if ($secondaryNav == '') show_categories_menu($menuClass);
                else echo($secondaryNav); ?>

                <!-- Start Searchbox -->
                <div id="search-form">
                    <form method="get" id="searchform1" action="<?php echo home_url( '/' ); ?>?page_id=401">
                        <input type="text" value="<?php esc_attr_e('search...','TheSource'); ?>" name="s" id="searchinput" />

                        <input type="image" src="<?php bloginfo('template_directory'); ?>/images/<?php echo esc_attr($colorSchemePath); ?>search_btn.png" id="searchsubmit" />
                    </form>
                </div>
            <!-- End Searchbox -->
            </div> <!-- end #cat-nav-content -->
            <div id="cat-nav-right"> </div>
        </div>  <!-- end #cat-nav -->
    </div>  <!-- end .container -->
</div>  <!-- end #header-top -->


<?php if ( (is_home() || is_front_page()) && get_option('thesource_featured') == 'on' ) get_template_part('includes/featured'); ?>

<div id="content">
    <?php if (!is_home()) { ?>
        <div id="content-top-shadow"></div>
    <?php }; ?>
    <div class="container">