diff --git a/jstest.php b/jstest.php
index 70f5551..104eaa2 100644
--- a/jstest.php
+++ b/jstest.php
@@ -1,89 +1,57 @@
 <?php
 /**
- * Plugin Name: test
- * Description: Rewrites the book-wrapper block using output buffering for Supapress pages.
+ * Plugin Name: the_content
+ * Description: test to see if the_content works 
  * Version: 1.0
  * Author: Kian
  */
 
 
 
+add_filter('the_content', 'test_replace_tabs_on_book_wrapper', 30);
 
+function test_replace_tabs_on_book_wrapper($content) {
 
-
-
-add_action('wp_enqueue_scripts','ava_test_init');
-
-function ava_test_init() {
-    wp_enqueue_script( 'ava-test-js', plugins_url( '/js/ava_test_.js', __FILE__ ));
-}
-
-
-
-
-add_action('template_redirect', function() {
-    if (is_singular()) { 
-        ob_start('br_replace_book_wrapper');
-    }
-});
-
-function br_replace_book_wrapper($html) {
-    if (strpos($html, 'product-details') === false) {
-        return $html;
+    if (strpos($content, 'book-wrapper') === false) {
+        return $content;
     }
 
-    preg_match('/<div class="book-wrapper">(.*?)<\/div>\s*<\/div>/s', $html, $match);
+    libxml_use_internal_errors(true);
+    $dom = new DOMDocument('1.0', 'UTF-8');
+    $dom->loadHTML('<?xml encoding="utf-8" ?>' . $content);
+    $xpath = new DOMXPath($dom);
 
-    // if (!isset($match[0])) return $html;
+    $panels = $xpath->query(
+        "//*[contains(@class,'wp-block-ub-tabbed-content-tab-content-wrap')]"
+    );
 
-    $book_block = $match[0];
+    if ($panels->length === 0) {
+        return $content;
+    }
 
-    $cover      = extract_attr($book_block, '/<img[^>]*src="([^"]+)"/');
-    $title      = extract_text($book_block, '/<div class="title-wrapper">\s*<h1>(.*?)<\/h1>/');
-    $author     = extract_text($book_block, '/<p class="sp__the-author">(.*?)<\/p>/');
-    $publisher  = extract_text($book_block, '/<p class="sp__the-publisher">(.*?)<\/p>/');
-    $imprint    = extract_text($book_block, '/<p class="sp__the-imprint">(.*?)<\/p>/');
-    $series     = extract_text($book_block, '/<p class="sp__the-series">(.*?)<\/p>/');
-    $isbn13     = extract_text($book_block, '/<p class="sp__the-isbn13">(.*?)<\/p>/');
-    $price      = extract_text($book_block, '/<p class="sp__the-price">(.*?)<\/p>/');
-    $format     = extract_text($book_block, '/<p class="sp__the-format">(.*?)<\/p>/');
-    $pubdate    = extract_text($book_block, '/<p class="sp__the-publication-date">(.*?)<\/p>/');
-    $pages      = extract_text($book_block, '/<p class="sp__the-pages">(.*?)<\/p>/');
-    $summary    = extract_html($book_block, '/<div class="sp__the-summary">(.*?)<\/div>/s');
-    $description= extract_html($book_block, '/<div class="sp__the-description">(.*?)<\/div>/s');
-    $reviews    = extract_html($book_block, '/<div class="sp__the-reviews">(.*?)<\/div>/s');
+    if ($panels->item(0)) {
+        replace_panel_html($dom, $panels->item(0), '<p>TEST AUTHOR CONTENT</p>');
+    }
 
+    if ($panels->item(1)) {
+        replace_panel_html($dom, $panels->item(1), '<p>TEST SUMMARY CONTENT</p>');
+    }
 
-    
+    if ($panels->item(2)) {
+        replace_panel_html($dom, $panels->item(2), '<p>TEST REVIEWS CONTENT</p>');
+    }
 
-  
-
-  
-    return str_replace($book_block, $new_block, $html);
-}
-
-function extract_text($html, $pattern) {
-    preg_match($pattern, $html, $m);
-    return $m[1] ?? '';
-}
-
-function extract_attr($html, $pattern) {
-    preg_match($pattern, $html, $m);
-    return $m[1] ?? '';
-}
-
-function extract_html($html, $pattern) {
-    preg_match($pattern, $html, $m);
-    return $m[1] ?? '';
+    return $dom->saveHTML();
 }
 
 
-?>
-
-
-  <script type="text/javascript">
-var js_variable  = '<?php echo $title;?>';
-<script>
-
 
+function replace_panel_html($dom, $panel, $html) {
+    while ($panel->firstChild) {
+        $panel->removeChild($panel->firstChild);
+    }
 
+    $fragment = $dom->createDocumentFragment();
+    $fragment->appendXML($html);
+    $panel->appendChild($fragment);
+}