diff --git a/bibtexbrowser-test.php b/bibtexbrowser-test.php
index 446fc8e..8ec90fb 100755
--- a/bibtexbrowser-test.php
+++ b/bibtexbrowser-test.php
@@ -81,6 +81,12 @@ class BTBTest extends PHPUnit_Framework_TestCase {
     // Vancouver style
     bibtexbrowser_configure('BIBLIOGRAPHYSTYLE','VancouverBibliographyStyle');
     $this->assertEquals("Foo Bar and Jane Doe. An Article. New Results. 2009;5:1-2.\n [bibtex]",strip_tags($first_entry->toHTML()));
+    
+    // changing the target
+    bibtexbrowser_configure('BIBLIOGRAPHYSTYLE','DefaultBibliographyStyle');
+    bibtexbrowser_configure('BIBTEXBROWSER_LINKS_TARGET','_top');
+    $this->assertEquals('<span itemscope="" itemtype="http://schema.org/ScholarlyArticle"><span class="bibtitle"  itemprop="name">An Article</span> (<span class="bibauthor"><span itemprop="author" itemtype="http://schema.org/Person">Foo Bar</span> and <span itemprop="author" itemtype="http://schema.org/Person">Jane Doe</span></span>), <span class="bibbooktitle">In <span itemprop="isPartOf">New Results</span></span>, volume 5, <span itemprop="datePublished">2009</span>.<span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.atitle=An+Article&amp;rft.jtitle=New+Results&amp;rft.volume=5&amp;rft.issue=&amp;rft.pub=&amp;rfr_id=info%3Asid%2F%3A&amp;rft.date=2009&amp;rft.au=Foo+Bar&amp;rft.au=Jane+Doe"></span></span> <span class="bibmenu"><a target="_top" class="biburl" title="aKeyA" href="bibtexbrowser.php?key=aKeyA&amp;bib=inline">[bibtex]</a></span>',$first_entry->toHTML());
+    
   }
 
   function testMultiSearch() {
diff --git a/bibtexbrowser.php b/bibtexbrowser.php
index f657a92..ce2bfcf 100755
--- a/bibtexbrowser.php
+++ b/bibtexbrowser.php
@@ -68,10 +68,6 @@ if (defined('ENCODING')) {
 // if you don't like it, you can be disable it by adding in bibtexbrowser.local.php
 // @define('BIBTEXBROWSER_USE_PROGRESSIVE_ENHANCEMENT',false);
 @define('BIBTEXBROWSER_USE_PROGRESSIVE_ENHANCEMENT',true);
-// if you disable the Javascript progressive enhancement,
-// you may want the links to be open in a new window/tab
-// if yes, add in bibtexbrowser.local.php  define('BIBTEXBROWSER_BIB_IN_NEW_WINDOW',true);
-@define('BIBTEXBROWSER_BIB_IN_NEW_WINDOW',false);
 @define('BIBLIOGRAPHYSTYLE','DefaultBibliographyStyle');// this is the name of a function
 @define('BIBLIOGRAPHYSECTIONS','DefaultBibliographySections');// this is the name of a function
 @define('BIBLIOGRAPHYTITLE','DefaultBibliographyTitle');// this is the name of a function
@@ -134,7 +130,7 @@ if (defined('ENCODING')) {
 @define('BIBTEXBROWSER_GSID_LINKS',true);
 
 // should pdf, doi, url, gsid links be opened in a new window?
-@define('BIBTEXBROWSER_LINKS_IN_NEW_WINDOW',false);
+@define('BIBTEXBROWSER_LINKS_TARGET','_self');// can be _blank (new window), _top (with frames)
 
 // should authors be linked to [none/homepage/resultpage]
 // none: nothing
@@ -291,6 +287,14 @@ function default_message() {
   echo "</div>";
 }
 
+/** returns the target of links */
+function get_target() {
+  if (c('BIBTEXBROWSER_LINKS_TARGET')!='_self') {
+    return " target=\"".c('BIBTEXBROWSER_LINKS_TARGET')."\"";
+  }
+  else return "";
+}
+
 /** @nodoc */
 function _zetDB($bibtex_filenames) {
 
@@ -1285,7 +1289,7 @@ class BibEntry {
     if ($altlabel==NULL) { $altlabel=$bibfield; }
     $str = $this->getIconOrTxt($altlabel,$iconurl);
     if ($this->hasField($bibfield)) {
-       return '<a'.(BIBTEXBROWSER_LINKS_IN_NEW_WINDOW?' target="_blank" ':'').' href="'.$this->getField($bibfield).'">'.$str.'</a>';
+       return '<a'.get_target().' href="'.$this->getField($bibfield).'">'.$str.'</a>';
     }
     return '';
   }
@@ -1296,7 +1300,7 @@ class BibEntry {
     $href = 'href="'.$this->getURL().'"';
     // we add biburl and title to be able to retrieve this important information
     // using Xpath expressions on the XHTML source
-    $link = "<a".(BIBTEXBROWSER_BIB_IN_NEW_WINDOW?' target="_blank" ':'')." class=\"biburl\" title=\"".$this->getKey()."\" {$href}>$bibstr</a>";
+    $link = '<a'.get_target()." class=\"biburl\" title=\"".$this->getKey()."\" {$href}>$bibstr</a>";
     return $link;
   }
 
@@ -1329,7 +1333,7 @@ class BibEntry {
   function getDoiLink($iconurl=NULL) {
     $str = $this->getIconOrTxt('doi',$iconurl);
     if ($this->hasField('doi')) {
-        return '<a'.(BIBTEXBROWSER_LINKS_IN_NEW_WINDOW?' target="_blank" ':'').' href="http://dx.doi.org/'.$this->getField('doi').'">'.$str.'</a>';
+        return '<a'.get_target().' href="http://dx.doi.org/'.$this->getField('doi').'">'.$str.'</a>';
     }
     return '';
   }
@@ -1338,7 +1342,7 @@ class BibEntry {
   function getGSLink($iconurl=NULL) {
     $str = $this->getIconOrTxt('cites',$iconurl);
     if ($this->hasField('gsid')) {
-        return ' <a'.(BIBTEXBROWSER_LINKS_IN_NEW_WINDOW?' target="_blank" ':'').' href="http://scholar.google.com/scholar?cites='.$this->getField("gsid").'">'.$str.'</a>';
+        return ' <a'.get_target().' href="http://scholar.google.com/scholar?cites='.$this->getField("gsid").'">'.$str.'</a>';
     }
     return '';
   }
@@ -1908,7 +1912,7 @@ class BibEntry {
     foreach ($vals as $field => $href) {
       if ($this->hasField($field)) {
         // this is not a parsing but a simple replacement
-        $entry = str_replace('___'.$field.'___', '<a'.(BIBTEXBROWSER_LINKS_IN_NEW_WINDOW?' target="_blank" ':'').' href="'.$href.'">'.$this->getField($field).'</a>', $entry);
+        $entry = str_replace('___'.$field.'___', '<a'.get_target().' href="'.$href.'">'.$this->getField($field).'</a>', $entry);
       }
     }
 
@@ -2248,7 +2252,7 @@ function DefaultBibliographyStyle(&$bibentry) {
   // title
   // usually in bold: .bibtitle { font-weight:bold; }
   $title = '<span class="bibtitle"  itemprop="name">'.$title.'</span>';
-  if ($bibentry->hasField('url')) $title = ' <a'.(BIBTEXBROWSER_BIB_IN_NEW_WINDOW?' target="_blank" ':'').' href="'.$bibentry->getField('url').'">'.$title.'</a>';
+  if ($bibentry->hasField('url')) $title = ' <a'.get_target().' href="'.$bibentry->getField('url').'">'.$title.'</a>';
 
 
   $coreInfo = $title;
@@ -2366,7 +2370,7 @@ function JanosBibliographyStyle(&$bibentry) {
 
   // title
   $title = '"'.$title.'"';
-  if ($bibentry->hasField('url')) $title = ' <a'.(BIBTEXBROWSER_BIB_IN_NEW_WINDOW?' target="_blank" ':'').' href="'.$bibentry->getField('url').'">'.$title.'</a>';
+  if ($bibentry->hasField('url')) $title = ' <a'.get_target().' href="'.$bibentry->getField('url').'">'.$title.'</a>';
   $entry[] = $title;
 
 
@@ -2481,7 +2485,7 @@ function VancouverBibliographyStyle(&$bibentry) {
     $title = $title . '. ';
   }
   if ($bibentry->hasField('url')) {
-    $title = ' <a'.(BIBTEXBROWSER_BIB_IN_NEW_WINDOW?' target="_blank" ':'').' href="'.$bibentry->getField('url').'">'.$title.'</a>';
+    $title = ' <a'.get_target().' href="'.$bibentry->getField('url').'">'.$title.'</a>';
   }
 
   $entry[] = $title;