diff --git a/book.php b/book.php
index 5fd8367..275abdd 100644
--- a/book.php
+++ b/book.php
@@ -94,15 +94,18 @@ class Book extends Base {
     }
     
     public function getUri () {
-        return "?page=".parent::PAGE_BOOK_DETAIL."&id=$this->id";
+        return "?page=".parent::PAGE_BOOK_DETAIL."&id=$this->id";
     }
     
-    public function getDetailUrl () {
+    public function getDetailUrl ($permalink = false) {
         global $config;
-        if ($config['cops_use_fancyapps'] == 0) { 
-            return 'index.php' . $this->getUri (); 
+        $urlParam = $this->getUri ();
+        if (!is_null (GetUrlParam (DB))) $urlParam = addURLParameter ($urlParam, DB, GetUrlParam (DB));
+        $urlParam = str_replace ("&", "&", $urlParam);
+        if ($permalink || $config['cops_use_fancyapps'] == 0) { 
+            return 'index.php' . $urlParam; 
         } else { 
-            return 'bookdetail.php?id=' . $this->id; 
+            return 'bookdetail.php' . $urlParam;
         }
     }
     
diff --git a/bookdetail.php b/bookdetail.php
index 27343b5..d52747b 100644
--- a/bookdetail.php
+++ b/bookdetail.php
@@ -50,7 +50,7 @@ $book->getLinkArray ();
             }
 ?>
         </div>
-        <div class="entryTitle"><a rel="bookmark" href="<?php echo 'index.php' . $book->getUri () ?>"><img src="<?php echo getUrlWithVersion("images/Link.png") ?>" alt="permalink" /></a><?php echo htmlspecialchars ($book->title) ?></div>
+        <div class="entryTitle"><a rel="bookmark" href="<?php echo $book->getDetailUrl (true) ?>"><img src="<?php echo getUrlWithVersion("images/Link.png") ?>" alt="permalink" /></a><?php echo htmlspecialchars ($book->title) ?></div>
         <div class="entrySection">
             <span><?php echo localize("authors.title") ?></span>
             <div class="buttonEffect pad6">