diff --git a/test/output/03fb25137cdb797acfbe13e927ce41ce.html b/test/output/03fb25137cdb797acfbe13e927ce41ce.html
index 4099fbb..ae7ddb5 100755
--- a/test/output/03fb25137cdb797acfbe13e927ce41ce.html
+++ b/test/output/03fb25137cdb797acfbe13e927ce41ce.html
@@ -88,8 +88,10 @@ color: red;
 <script type="text/javascript" src="http://code.jquery.com/jquery-1.5.1.min.js"></script> 
 <script type="text/javascript" ><!--
 // Javascript progressive enhancement for bibtexbrowser
-$('a.biburl').each(function(item) { // for each url "[bib]"
+$('a.biburl').each(function() { // for each url "[bib]"
   var biburl = $(this);
+  if (biburl.attr('bibtexbrowser') === undefined)
+  {
   biburl.click(function(ev) { // we change the click semantics
     ev.preventDefault(); // no open url
     if (biburl.nextAll('pre').length == 0) { // we don't have yet the bibtex data
@@ -105,6 +107,10 @@ $('a.biburl').each(function(item) { // for each url "[bib]"
       }, error: function() {window.location.href = biburl.attr('href');}});
     } else {biburl.nextAll('pre').toggle();}  // we toggle the view    
   });
+  biburl.attr('bibtexbrowser','done');
+  } // end if biburl.bibtexbrowser;
 });
+
+
 --></script></body>
 </html>
diff --git a/test/output/16162487c2271877973423daff5222d6.html b/test/output/16162487c2271877973423daff5222d6.html
index fea1144..7b7edce 100755
--- a/test/output/16162487c2271877973423daff5222d6.html
+++ b/test/output/16162487c2271877973423daff5222d6.html
@@ -37,8 +37,10 @@ color: red;
 <script type="text/javascript" src="http://code.jquery.com/jquery-1.5.1.min.js"></script> 
 <script type="text/javascript" ><!--
 // Javascript progressive enhancement for bibtexbrowser
-$('a.biburl').each(function(item) { // for each url "[bib]"
+$('a.biburl').each(function() { // for each url "[bib]"
   var biburl = $(this);
+  if (biburl.attr('bibtexbrowser') === undefined)
+  {
   biburl.click(function(ev) { // we change the click semantics
     ev.preventDefault(); // no open url
     if (biburl.nextAll('pre').length == 0) { // we don't have yet the bibtex data
@@ -54,6 +56,10 @@ $('a.biburl').each(function(item) { // for each url "[bib]"
       }, error: function() {window.location.href = biburl.attr('href');}});
     } else {biburl.nextAll('pre').toggle();}  // we toggle the view    
   });
+  biburl.attr('bibtexbrowser','done');
+  } // end if biburl.bibtexbrowser;
 });
+
+
 --></script></body>
 </html>
diff --git a/test/output/31721507999c0fb567513d8d51d99c31.html b/test/output/31721507999c0fb567513d8d51d99c31.html
index c12faff..8f4c17b 100755
--- a/test/output/31721507999c0fb567513d8d51d99c31.html
+++ b/test/output/31721507999c0fb567513d8d51d99c31.html
@@ -37,8 +37,10 @@ color: red;
 <script type="text/javascript" src="http://code.jquery.com/jquery-1.5.1.min.js"></script> 
 <script type="text/javascript" ><!--
 // Javascript progressive enhancement for bibtexbrowser
-$('a.biburl').each(function(item) { // for each url "[bib]"
+$('a.biburl').each(function() { // for each url "[bib]"
   var biburl = $(this);
+  if (biburl.attr('bibtexbrowser') === undefined)
+  {
   biburl.click(function(ev) { // we change the click semantics
     ev.preventDefault(); // no open url
     if (biburl.nextAll('pre').length == 0) { // we don't have yet the bibtex data
@@ -54,6 +56,10 @@ $('a.biburl').each(function(item) { // for each url "[bib]"
       }, error: function() {window.location.href = biburl.attr('href');}});
     } else {biburl.nextAll('pre').toggle();}  // we toggle the view    
   });
+  biburl.attr('bibtexbrowser','done');
+  } // end if biburl.bibtexbrowser;
 });
+
+
 --></script></body>
 </html>
diff --git a/test/output/357e491edfc8fde4daae7117d9164366.html b/test/output/357e491edfc8fde4daae7117d9164366.html
index 93e9294..b9d81dd 100755
--- a/test/output/357e491edfc8fde4daae7117d9164366.html
+++ b/test/output/357e491edfc8fde4daae7117d9164366.html
@@ -23,8 +23,10 @@ color: red;
 <script type="text/javascript" src="http://code.jquery.com/jquery-1.5.1.min.js"></script> 
 <script type="text/javascript" ><!--
 // Javascript progressive enhancement for bibtexbrowser
-$('a.biburl').each(function(item) { // for each url "[bib]"
+$('a.biburl').each(function() { // for each url "[bib]"
   var biburl = $(this);
+  if (biburl.attr('bibtexbrowser') === undefined)
+  {
   biburl.click(function(ev) { // we change the click semantics
     ev.preventDefault(); // no open url
     if (biburl.nextAll('pre').length == 0) { // we don't have yet the bibtex data
@@ -40,6 +42,10 @@ $('a.biburl').each(function(item) { // for each url "[bib]"
       }, error: function() {window.location.href = biburl.attr('href');}});
     } else {biburl.nextAll('pre').toggle();}  // we toggle the view    
   });
+  biburl.attr('bibtexbrowser','done');
+  } // end if biburl.bibtexbrowser;
 });
+
+
 --></script></body>
 </html>
diff --git a/test/output/36916793e4585f7a22196db21e2724fb.html b/test/output/36916793e4585f7a22196db21e2724fb.html
index ac4c6f4..fe85342 100755
--- a/test/output/36916793e4585f7a22196db21e2724fb.html
+++ b/test/output/36916793e4585f7a22196db21e2724fb.html
@@ -38,8 +38,10 @@ color: red;
 <script type="text/javascript" src="http://code.jquery.com/jquery-1.5.1.min.js"></script> 
 <script type="text/javascript" ><!--
 // Javascript progressive enhancement for bibtexbrowser
-$('a.biburl').each(function(item) { // for each url "[bib]"
+$('a.biburl').each(function() { // for each url "[bib]"
   var biburl = $(this);
+  if (biburl.attr('bibtexbrowser') === undefined)
+  {
   biburl.click(function(ev) { // we change the click semantics
     ev.preventDefault(); // no open url
     if (biburl.nextAll('pre').length == 0) { // we don't have yet the bibtex data
@@ -55,6 +57,10 @@ $('a.biburl').each(function(item) { // for each url "[bib]"
       }, error: function() {window.location.href = biburl.attr('href');}});
     } else {biburl.nextAll('pre').toggle();}  // we toggle the view    
   });
+  biburl.attr('bibtexbrowser','done');
+  } // end if biburl.bibtexbrowser;
 });
+
+
 --></script></body>
 </html>
diff --git a/test/output/4cd4dec945a0966623128fe8dfe9b10e.html b/test/output/4cd4dec945a0966623128fe8dfe9b10e.html
index a10d947..78dd88f 100755
--- a/test/output/4cd4dec945a0966623128fe8dfe9b10e.html
+++ b/test/output/4cd4dec945a0966623128fe8dfe9b10e.html
@@ -80,8 +80,10 @@ color: red;
 <script type="text/javascript" src="http://code.jquery.com/jquery-1.5.1.min.js"></script> 
 <script type="text/javascript" ><!--
 // Javascript progressive enhancement for bibtexbrowser
-$('a.biburl').each(function(item) { // for each url "[bib]"
+$('a.biburl').each(function() { // for each url "[bib]"
   var biburl = $(this);
+  if (biburl.attr('bibtexbrowser') === undefined)
+  {
   biburl.click(function(ev) { // we change the click semantics
     ev.preventDefault(); // no open url
     if (biburl.nextAll('pre').length == 0) { // we don't have yet the bibtex data
@@ -97,6 +99,10 @@ $('a.biburl').each(function(item) { // for each url "[bib]"
       }, error: function() {window.location.href = biburl.attr('href');}});
     } else {biburl.nextAll('pre').toggle();}  // we toggle the view    
   });
+  biburl.attr('bibtexbrowser','done');
+  } // end if biburl.bibtexbrowser;
 });
+
+
 --></script></body>
 </html>
diff --git a/test/output/57379f4d9506be7cd75de2f83219e84f.html b/test/output/57379f4d9506be7cd75de2f83219e84f.html
index abae0f9..73983f3 100755
--- a/test/output/57379f4d9506be7cd75de2f83219e84f.html
+++ b/test/output/57379f4d9506be7cd75de2f83219e84f.html
@@ -35,8 +35,10 @@ color: red;
 <script type="text/javascript" src="http://code.jquery.com/jquery-1.5.1.min.js"></script> 
 <script type="text/javascript" ><!--
 // Javascript progressive enhancement for bibtexbrowser
-$('a.biburl').each(function(item) { // for each url "[bib]"
+$('a.biburl').each(function() { // for each url "[bib]"
   var biburl = $(this);
+  if (biburl.attr('bibtexbrowser') === undefined)
+  {
   biburl.click(function(ev) { // we change the click semantics
     ev.preventDefault(); // no open url
     if (biburl.nextAll('pre').length == 0) { // we don't have yet the bibtex data
@@ -52,6 +54,10 @@ $('a.biburl').each(function(item) { // for each url "[bib]"
       }, error: function() {window.location.href = biburl.attr('href');}});
     } else {biburl.nextAll('pre').toggle();}  // we toggle the view    
   });
+  biburl.attr('bibtexbrowser','done');
+  } // end if biburl.bibtexbrowser;
 });
+
+
 --></script></body>
 </html>
diff --git a/test/output/632abba2651d0c76144a55419914682d.html b/test/output/632abba2651d0c76144a55419914682d.html
index 447d811..6d503ed 100755
--- a/test/output/632abba2651d0c76144a55419914682d.html
+++ b/test/output/632abba2651d0c76144a55419914682d.html
@@ -38,8 +38,10 @@ color: red;
 <script type="text/javascript" src="http://code.jquery.com/jquery-1.5.1.min.js"></script> 
 <script type="text/javascript" ><!--
 // Javascript progressive enhancement for bibtexbrowser
-$('a.biburl').each(function(item) { // for each url "[bib]"
+$('a.biburl').each(function() { // for each url "[bib]"
   var biburl = $(this);
+  if (biburl.attr('bibtexbrowser') === undefined)
+  {
   biburl.click(function(ev) { // we change the click semantics
     ev.preventDefault(); // no open url
     if (biburl.nextAll('pre').length == 0) { // we don't have yet the bibtex data
@@ -55,6 +57,10 @@ $('a.biburl').each(function(item) { // for each url "[bib]"
       }, error: function() {window.location.href = biburl.attr('href');}});
     } else {biburl.nextAll('pre').toggle();}  // we toggle the view    
   });
+  biburl.attr('bibtexbrowser','done');
+  } // end if biburl.bibtexbrowser;
 });
+
+
 --></script></body>
 </html>
diff --git a/test/output/6d99d602a3271c529e8dd56e0e39fdfc.html b/test/output/6d99d602a3271c529e8dd56e0e39fdfc.html
index 3a9c5ea..f77f4f2 100755
--- a/test/output/6d99d602a3271c529e8dd56e0e39fdfc.html
+++ b/test/output/6d99d602a3271c529e8dd56e0e39fdfc.html
@@ -336,8 +336,10 @@ color: red;
 <script type="text/javascript" src="http://code.jquery.com/jquery-1.5.1.min.js"></script> 
 <script type="text/javascript" ><!--
 // Javascript progressive enhancement for bibtexbrowser
-$('a.biburl').each(function(item) { // for each url "[bib]"
+$('a.biburl').each(function() { // for each url "[bib]"
   var biburl = $(this);
+  if (biburl.attr('bibtexbrowser') === undefined)
+  {
   biburl.click(function(ev) { // we change the click semantics
     ev.preventDefault(); // no open url
     if (biburl.nextAll('pre').length == 0) { // we don't have yet the bibtex data
@@ -353,6 +355,10 @@ $('a.biburl').each(function(item) { // for each url "[bib]"
       }, error: function() {window.location.href = biburl.attr('href');}});
     } else {biburl.nextAll('pre').toggle();}  // we toggle the view    
   });
+  biburl.attr('bibtexbrowser','done');
+  } // end if biburl.bibtexbrowser;
 });
+
+
 --></script></body>
 </html>
diff --git a/test/output/982dbdb9aaff28b153228d3d6b01a406.html b/test/output/982dbdb9aaff28b153228d3d6b01a406.html
index abed106..27b3f7d 100755
--- a/test/output/982dbdb9aaff28b153228d3d6b01a406.html
+++ b/test/output/982dbdb9aaff28b153228d3d6b01a406.html
@@ -23,8 +23,10 @@ color: red;
 <script type="text/javascript" src="http://code.jquery.com/jquery-1.5.1.min.js"></script> 
 <script type="text/javascript" ><!--
 // Javascript progressive enhancement for bibtexbrowser
-$('a.biburl').each(function(item) { // for each url "[bib]"
+$('a.biburl').each(function() { // for each url "[bib]"
   var biburl = $(this);
+  if (biburl.attr('bibtexbrowser') === undefined)
+  {
   biburl.click(function(ev) { // we change the click semantics
     ev.preventDefault(); // no open url
     if (biburl.nextAll('pre').length == 0) { // we don't have yet the bibtex data
@@ -40,6 +42,10 @@ $('a.biburl').each(function(item) { // for each url "[bib]"
       }, error: function() {window.location.href = biburl.attr('href');}});
     } else {biburl.nextAll('pre').toggle();}  // we toggle the view    
   });
+  biburl.attr('bibtexbrowser','done');
+  } // end if biburl.bibtexbrowser;
 });
+
+
 --></script></body>
 </html>
diff --git a/test/output/b4155fdd8a001ff84fed76fdff701bff.html b/test/output/b4155fdd8a001ff84fed76fdff701bff.html
index 06de5ad..6e2f2e5 100755
--- a/test/output/b4155fdd8a001ff84fed76fdff701bff.html
+++ b/test/output/b4155fdd8a001ff84fed76fdff701bff.html
@@ -29,8 +29,10 @@ color: red;
 <script type="text/javascript" src="http://code.jquery.com/jquery-1.5.1.min.js"></script> 
 <script type="text/javascript" ><!--
 // Javascript progressive enhancement for bibtexbrowser
-$('a.biburl').each(function(item) { // for each url "[bib]"
+$('a.biburl').each(function() { // for each url "[bib]"
   var biburl = $(this);
+  if (biburl.attr('bibtexbrowser') === undefined)
+  {
   biburl.click(function(ev) { // we change the click semantics
     ev.preventDefault(); // no open url
     if (biburl.nextAll('pre').length == 0) { // we don't have yet the bibtex data
@@ -46,6 +48,10 @@ $('a.biburl').each(function(item) { // for each url "[bib]"
       }, error: function() {window.location.href = biburl.attr('href');}});
     } else {biburl.nextAll('pre').toggle();}  // we toggle the view    
   });
+  biburl.attr('bibtexbrowser','done');
+  } // end if biburl.bibtexbrowser;
 });
+
+
 --></script></body>
 </html>
diff --git a/test/output/edeaf42415d65bf6708bafa6396c7824.html b/test/output/edeaf42415d65bf6708bafa6396c7824.html
index 772be92..9a46231 100755
--- a/test/output/edeaf42415d65bf6708bafa6396c7824.html
+++ b/test/output/edeaf42415d65bf6708bafa6396c7824.html
@@ -37,8 +37,10 @@ color: red;
 <script type="text/javascript" src="http://code.jquery.com/jquery-1.5.1.min.js"></script> 
 <script type="text/javascript" ><!--
 // Javascript progressive enhancement for bibtexbrowser
-$('a.biburl').each(function(item) { // for each url "[bib]"
+$('a.biburl').each(function() { // for each url "[bib]"
   var biburl = $(this);
+  if (biburl.attr('bibtexbrowser') === undefined)
+  {
   biburl.click(function(ev) { // we change the click semantics
     ev.preventDefault(); // no open url
     if (biburl.nextAll('pre').length == 0) { // we don't have yet the bibtex data
@@ -54,6 +56,10 @@ $('a.biburl').each(function(item) { // for each url "[bib]"
       }, error: function() {window.location.href = biburl.attr('href');}});
     } else {biburl.nextAll('pre').toggle();}  // we toggle the view    
   });
+  biburl.attr('bibtexbrowser','done');
+  } // end if biburl.bibtexbrowser;
 });
+
+
 --></script></body>
 </html>