diff --git a/about.php b/about.php
index 7b5ba3c..e9198b0 100644
--- a/about.php
+++ b/about.php
@@ -24,6 +24,8 @@
   <script>
     $(document).ready(function(){
 
+      setInterval(changeGargoyle,10000);
+
       getMyAdressInfos();
 
       $('#myNavbar').on('show.bs.collapse', function () {
@@ -63,12 +65,20 @@
           if (pos < winTop + 600) {
             $(this).addClass("slide");
           }
-          d = new Date();
-          $("#gargoyle").attr("src", "images/logo.php?ts="+d.getTime());         
         });
       });
     });
 
+    /*
+     * Faire varier l'image de la gargouille
+     *
+     */
+    function changeGargoyle()
+    {
+        d = new Date();
+        $("#gargoyle").attr("src", "images/logo.php?ts="+d.getTime());         
+    }
+
     /*
      * Récupéer les taux de change actuels
      *    https://blockchain.info/ticker?cors=true
@@ -136,7 +146,9 @@
       <p class="text-justify">I like <b>surfing</b> and sailing on the ocean. But during longs winter nights, computing is fun. I'm interested into <b>cryptocurrencies</b>, computationnal art, datavisualisation. I know that <b>42</b> is the answer to <b>the Life, Universe and Everything Else</b>. As <b>Eto Demerzel</b> said to me, the <b>Seldon's Plan</b> will save the Galaxy. My favorites books are the <b>House of leaves</b>, the <b>Necronomicron</b> and the <b>DarkHold</b>. I also know that <b>great power comes with great responsibility</b>. I'm still in <b>the search of Captain Zero</b>, because <b>the Truth is out there</b>.</p>
     </div>
     <div class="col-sm-4">
-      <img id="gargoyle" src="images/logo.php" alt="avatar dragon gargoyle" width="100%; height: auto"></img>
+      <div style="background-image:url(images/topisto_vert_tr.png);background-repeat: no-repeat;background-position:center top;background-size: 100% auto;">
+        <img id="gargoyle" src="images/logo.php" alt="avatar dragon gargoyle" width="100%; height: auto" style="opacity:0.4"></img>
+      </div>
     </div>
   </div>
 </div>
diff --git a/images/logo.php b/images/logo.php
index ac00d2a..8f26353 100644
--- a/images/logo.php
+++ b/images/logo.php
@@ -2,9 +2,9 @@
 
 $alea=rand(0,100);
 
-$logo='topisto_vert.png';
+$logo='topisto_vert_tr.png';
 
-if ($alea > 30)
+if ($alea > 5)
 {
   $files = glob('logo/medium/*/topisto_vert.png');
   usort($files, function($a, $b) {
diff --git a/images/logo/medium/transparent.png b/images/logo/medium/transparent.png
new file mode 100644
index 0000000..111ea4c
Binary files /dev/null and b/images/logo/medium/transparent.png differ
diff --git a/images/logo/medium/transparent.sh b/images/logo/medium/transparent.sh
new file mode 100644
index 0000000..d004963
--- /dev/null
+++ b/images/logo/medium/transparent.sh
@@ -0,0 +1,8 @@
+convert                              \
+  topisto_vert.png                   \
+    -channel rgba                    \ 
+    -matte                           \
+    -fuzz 40%                        \
+    -fill "rgba(255,255,255,0.5)"    \
+    -opaque "rgb(255,255,255)"       \
+       semi_transparent.png  
diff --git a/images/topisto_vert_tr.png b/images/topisto_vert_tr.png
new file mode 100644
index 0000000..111ea4c
Binary files /dev/null and b/images/topisto_vert_tr.png differ
diff --git a/js/lastblock.js b/js/lastblock.js
index 1e6145f..0bd2d65 100644
--- a/js/lastblock.js
+++ b/js/lastblock.js
@@ -37,8 +37,6 @@ blockchainListener = function(){
         } 
       }
     }, "json" );
-
-    setTimeout(_lastBlockTrigger, 30000);
   };
 
   function _addBlockHook(addBlockHook){
@@ -56,7 +54,7 @@ blockchainListener = function(){
 
   function _init(){
     _addBlockHook(_logBlockHash);
-    _lastBlockTrigger();
+    setTimeout(_lastBlockTrigger, 30000);
   };
 
   return {init: _init, addBlockHook: _addBlockHook};