How to output image from RSS feed (Wordpress)

[category] => VALUE
    [guid] => URL
    [description] => POST DESCRIPTION
    [content] => Array
        (
            [encoded] => <p><a class="..." href="POST URL" title="..."><img class="..." src="POST THUMBNAIL" width="..." height="..." alt="IMG ALT TXT" /></a>
</p>
<p>THE POST CONTENT</p>...

var getFeed = function(feed) {
	var url = feed;
	url += "&callback=parse_res"
	var scripttag = document.createElement("script");
	scripttag.setAttribute("type","text/javascript");
	scripttag.setAttribute("charset","utf-8");
	scripttag.setAttribute("src",url);
	document.getElementsByTagName("body")[0].appendChild(scripttag);
}

var parse_res = function(data) {
	var entries = data.responseData.feed.entries;
	var container = document.getElementById("rssFeed");
	var list = document.createElement("ul");
	while (container.hasChildNodes()) {
		container.removeChild(container.lastChild);
		}
	 for (var i=0; i<entries.length; i++){
		 var listItem = document.createElement("li");
				var title = entries[i].title;	
				 // create the headline link
				 var link = document.createElement("a");
				 link.setAttribute("href", entries[i].link);
				 link.setAttribute("target","_blank");
				 var text = document.createTextNode(title);
				 link.appendChild(text);
				 // insert the markup
				 listItem.appendChild(link);
				 list.appendChild(listItem);
				 container.appendChild(list);
			}
}

<?php
    define('WP_USE_THEMES', false);
    require('blog/wp-blog-header.php');
?>



<?php 
    query_posts('showposts=2&cat=-112'); if (have_posts()) : ?>  
    <?php while (have_posts()) : the_post(); ?>  
    
        <?php
            $count++;
            $image_thumb = '';
                                        
            if(has_post_thumbnail(get_the_ID(), 'blog_ft'))
            {
                $image_id = get_post_thumbnail_id(get_the_ID());
                $image_thumb = wp_get_attachment_image_src($image_id, 'blog_ft', true);
            }
        ?>
        <dt>
            <?php
                if(!empty($image_thumb))
                {
            ?>
                <img class="blogimg" src="<?php echo $image_thumb[0]; ?>" alt="" />
            <?php
                } else {
            ?>
                <img class="blogimg" src="www.wesleypicotte.com/blog/blog.png" alt="" />                 
            <?php } ?>
            <br />
            <a href="<?php the_permalink() ?>" title="<?php the_title(); ?>"><?php the_title(); ?></a>
        </dt>
        <dd>
            <?php
                $content = get_the_content();
                $content = strip_tags($content);
                echo substr($content, 0, 100);
            ?>
            <br />
            <br />
            <a href="<?php the_permalink() ?>" title="<?php the_title(); ?>"  style="font-size: 12px;">Read Article </a> 
        </dd>
    <?php endwhile; ?>  
<?php else : ?>  
    Sorry, no posts were found.
<?php endif; ?> 


<?php endif; wp_reset_query(); ?>