diff --git a/htroot/IndexMonitor.html b/htroot/IndexMonitor.html
index 012a785ac..0858c3f64 100644
--- a/htroot/IndexMonitor.html
+++ b/htroot/IndexMonitor.html
@@ -36,7 +36,7 @@ so you need to log-in with your administration password.</p>
 <p>Case (6) is a monitor of the local receipt-generator, the opposed case of (1). It contains also an indexing result monitor but is not considered private
 since it shows crawl requests from other peers.
 </p>
-<p><img src="/env/grafics/indexmonitor.gif"></p>
+<p><img src="/env/grafics/indexmonitor.png"></p>
 <p>The image above illustrates the data flow initiated by web index acquisition.
 Some processes occur double to document the complex index migration structure.
 </p>
diff --git a/htroot/Network.html b/htroot/Network.html
index 580c22b21..b662694eb 100644
--- a/htroot/Network.html
+++ b/htroot/Network.html
@@ -110,7 +110,7 @@ Progress towards the next peer: #[percent]#%.<br />
  At current PPM you will reach him #(timemessage)#in an unknown time::in #[time]#::never, because he is faster than you#(/timemessage)#.<br />
 <!--#{percent}#<img src="/env/grafics/green-block.png">#{/percent}##{percent2}#<img src="/env/grafics/red-block.png">#{/percent2}#-->
 <div height="20" style="border-style:solid; border-width:1px; border-color:#CAD5E3">
-	<img src="env/grafics/green_bar.gif" width="#[percent]#%" height="20" alt=""><img src="env/grafics/red_bar.gif" width="#[percent2]#%" height="20" alt="">
+	<img src="env/grafics/green_bar.gif" width="#[percent]#%" height="20" alt=""><img src="env/grafics/red_bar.png" width="#[percent2]#%" height="20" alt="">
 </div>
 #(/progressbar)#
 ::
diff --git a/htroot/QuickCrawlLink_p.html b/htroot/QuickCrawlLink_p.html
index 473877cba..759201594 100644
--- a/htroot/QuickCrawlLink_p.html
+++ b/htroot/QuickCrawlLink_p.html
@@ -35,7 +35,7 @@ If you click on it while browsing, the currently viewed website will be inserted
 </td>
 </tr>
 <tr>
-	<td><a href="javascript:w = window.open('http://#[host]#:#[port]#/QuickCrawlLink_p.html?localIndexing=on&amp;crawlingQ=on&amp;xdstopw=on&amp;title='+escape(document.title)+'&amp;url='+escape(location.href),'_blank','height=150,width=500,resizable=yes,scrollbar=no,directory=no,menubar=no,location=no');w.focus();"><img src="/env/grafics/addlink.gif" border="0">&nbsp;Crawl with YaCy</a></td>
+	<td><a href="javascript:w = window.open('http://#[host]#:#[port]#/QuickCrawlLink_p.html?localIndexing=on&amp;crawlingQ=on&amp;xdstopw=on&amp;title='+escape(document.title)+'&amp;url='+escape(location.href),'_blank','height=150,width=500,resizable=yes,scrollbar=no,directory=no,menubar=no,location=no');w.focus();"><img src="/env/grafics/addlink.png" border="0">&nbsp;Crawl with YaCy</a></td>
 </tr>
 </table>
 
diff --git a/htroot/env/grafics/addlink.gif b/htroot/env/grafics/addlink.gif
deleted file mode 100644
index ef9c2db40..000000000
Binary files a/htroot/env/grafics/addlink.gif and /dev/null differ
diff --git a/htroot/env/grafics/addlink.png b/htroot/env/grafics/addlink.png
new file mode 100644
index 000000000..5a3da688c
Binary files /dev/null and b/htroot/env/grafics/addlink.png differ
diff --git a/htroot/env/grafics/buttonImage.gif b/htroot/env/grafics/buttonImage.gif
deleted file mode 100644
index 426a4b5c7..000000000
Binary files a/htroot/env/grafics/buttonImage.gif and /dev/null differ
diff --git a/htroot/env/grafics/buttonImage.png b/htroot/env/grafics/buttonImage.png
new file mode 100644
index 000000000..f473fe8b2
Binary files /dev/null and b/htroot/env/grafics/buttonImage.png differ
diff --git a/htroot/env/grafics/failed.png b/htroot/env/grafics/failed.png
index 375d8d9c3..ac9fbcb2a 100644
Binary files a/htroot/env/grafics/failed.png and b/htroot/env/grafics/failed.png differ
diff --git a/htroot/env/grafics/indexmonitor.gif b/htroot/env/grafics/indexmonitor.gif
deleted file mode 100644
index a6548d5bb..000000000
Binary files a/htroot/env/grafics/indexmonitor.gif and /dev/null differ
diff --git a/htroot/env/grafics/indexmonitor.gif.bak b/htroot/env/grafics/indexmonitor.gif.bak
deleted file mode 100644
index 48cb01ba5..000000000
Binary files a/htroot/env/grafics/indexmonitor.gif.bak and /dev/null differ
diff --git a/htroot/env/grafics/indexmonitor.png b/htroot/env/grafics/indexmonitor.png
new file mode 100644
index 000000000..88fd90736
Binary files /dev/null and b/htroot/env/grafics/indexmonitor.png differ
diff --git a/htroot/env/grafics/kaskelix.png b/htroot/env/grafics/kaskelix.png
index 96c7e2a49..e22f945d0 100644
Binary files a/htroot/env/grafics/kaskelix.png and b/htroot/env/grafics/kaskelix.png differ
diff --git a/htroot/env/grafics/ok.png b/htroot/env/grafics/ok.png
index b1b7f2a15..c6c2280e7 100644
Binary files a/htroot/env/grafics/ok.png and b/htroot/env/grafics/ok.png differ
diff --git a/htroot/env/grafics/red_bar.gif b/htroot/env/grafics/red_bar.gif
deleted file mode 100644
index 21fceb891..000000000
Binary files a/htroot/env/grafics/red_bar.gif and /dev/null differ
diff --git a/htroot/env/grafics/red_bar.png b/htroot/env/grafics/red_bar.png
new file mode 100644
index 000000000..a467966d6
Binary files /dev/null and b/htroot/env/grafics/red_bar.png differ
diff --git a/htroot/index.html b/htroot/index.html
index 5ec917d94..cf26b7ea7 100644
--- a/htroot/index.html
+++ b/htroot/index.html
@@ -23,7 +23,7 @@ picPlus.src = "/env/grafics/plus.gif";
   </SCRIPT>
 
   <br>
-  <center><span style="font-size=12pt; font-family:Helvetica, Arial; color:#212942"><img src="/env/grafics/kaskelix.png" align="middle" alt="YaCy logo Kaskelix"><br>P2P WEB SEARCH</span></center><br>
+  <center><span style="font-size=12pt; font-family:Helvetica, Arial; color:#212942"><img src="/env/grafics/kaskelix.png" align="middle" alt="Kaskelix - the YaCy logo"><br>P2P WEB SEARCH</span></center><br>
   <center>#[promoteSearchPageGreeting]#</center><br>
 
   <form action="index.html" method="get">