diff --git a/bibtexbrowser-style-default.php b/bibtexbrowser-style-default.php
index 8f1a09c..cecdbd4 100755
--- a/bibtexbrowser-style-default.php
+++ b/bibtexbrowser-style-default.php
@@ -23,7 +23,7 @@ function DefaultBibliographyStyle(&$bibentry) {
   // title
   // usually in bold: .bibtitle { font-weight:bold; }
   $title = '<span class="bibtitle">'.$title.'</span>';
-  if ($bibentry->hasField('url')) $title = ' <a href="'.$bibentry->getField("url").'">'.$title.'</a>';
+  if ($bibentry->hasField('url')) $title = ' <a'.(BIBTEXBROWSER_BIB_IN_NEW_WINDOW?' target="_blank" ':'').' href="'.$bibentry->getField("url").'">'.$title.'</a>';
   
 
   // author
diff --git a/bibtexbrowser-style-janos.php b/bibtexbrowser-style-janos.php
index 9cff186..48317a3 100755
--- a/bibtexbrowser-style-janos.php
+++ b/bibtexbrowser-style-janos.php
@@ -1,4 +1,4 @@
-<?php /** Bibtexbrowser style contributed by János Tapolcai
+<?php /** Bibtexbrowser style contributed by Janos Tapolcai
 see: [[http://www.monperrus.net/martin/bibtexbrowser]]
 
 It looks like the IEEE transaction style.
@@ -25,7 +25,7 @@ function JanosBibliographyStyle(&$bibentry) {
 
   // title
   $title = '"'.$title.'"';
-  if ($bibentry->hasField('url')) $title = ' <a href="'.$bibentry->getField("url").'">'.$title.'</a>';
+  if ($bibentry->hasField('url')) $title = ' <a'.(BIBTEXBROWSER_BIB_IN_NEW_WINDOW?' target="_blank" ':'').' href="'.$bibentry->getField("url").'">'.$title.'</a>';
   $entry[] = $title;
 
 
diff --git a/bibtexbrowser.php b/bibtexbrowser.php
index 5482130..8d7b3cc 100755
--- a/bibtexbrowser.php
+++ b/bibtexbrowser.php
@@ -981,7 +981,7 @@ class BibEntry {
 
   /** returns a "[pdf]" link if relevant */
   function getUrlLink() {
-    if ($this->hasField('url')) return ' <a href="'.$this->getField('url').'">[pdf]</a>';
+    if ($this->hasField('url')) return ' <a'.(BIBTEXBROWSER_BIB_IN_NEW_WINDOW?' target="_blank" ':'').' href="'.$this->getField('url').'">[pdf]</a>';
     return '';
   }