fix invisible icon not found

htroot/HostBrowser.html

@@ -87,7 +87,7 @@ function updatepage(str) {
      <fieldset><legend>Host List</legend>
       #{list}#
       <div style="float:left; padding:1px 5px 1px 5px;">
-        <div style="width:180px; text-align:left; float: left; white-space:nowrap; overflow:hidden;"><div id="info"><img src="/env/grafics/#(type)#invisible.gif::burn-e.gif::construction.gif#(/type)#" align="left" width="12" height="8">&nbsp;<a href="/HostBrowser.html?path=#[host]#&facetcount=#[count]#">#[host]#</a></div></div>
+        <div style="width:180px; text-align:left; float: left; white-space:nowrap; overflow:hidden;"><div id="info"><img src="/env/grafics/#(type)#invisible.png::burn-e.gif::construction.gif#(/type)#" align="left" width="12" height="8">&nbsp;<a href="/HostBrowser.html?path=#[host]#&facetcount=#[count]#">#[host]#</a></div></div>
         <div style="width:120px; text-align:right; float: left; white-space:nowrap; overflow:hidden;"><span class="commit">#[count]#</span>#(crawler)#::/<span class="pending">#[pending]#</span>#(/crawler)##(errors)#::/<span class="error">#[exclcount]#/#[failcount]#</span>#(/errors)# URLs</div>
       </div>
       #{/list}#