some fixes; asynchronous message decryption to keep browser responsive

nodejs/views/index.ejs

@@ -46,6 +46,7 @@
     
     <div id="main">
 
+      <!--                                                            Register New User -->
       <div id="newuser" style="display: none">
         <h2>Register User</h2>
         <p>All you need to start is a username and a password:</p>
@@ -99,6 +100,7 @@
         up your keys.</p>
       </div>
 
+      <!--                                                               Enter Password -->
       <div id="getpwd" style="display: none">
         <form>
           <input placeholder="please enter password" id="pwd" oninput="setpw(this.value)"
@@ -106,10 +108,12 @@
         </form>
       </div>
 
+      <!--                                                                  Chat Screen -->
       <div id="chat" style="display: none">
         <div id="message">
           <form id="chat" autocomplete="off" onsubmit="sendmessage(this.elements['recv'].value, this.elements['msg'].value)">
-            <input placeholder="receiver" autocomplete="off" type="text" id="recv" oninput="checkpartner(this.value)" />
+            <input placeholder="receiver" autocomplete="off" type="text" list="allusers" id="recv" oninput="checkpartner(this.value)" />
+            <datalist id="allusers"></datalist>
             <input placeholder="message" autocomplete="off" type="text" id="msg"/>
             <div class="buttongroup">
               <span class="toolbutton">
@@ -149,6 +153,7 @@
         </script>
       </div>
 
+      <!--                                                           Password Forgotten -->
       <div id="forgotpassword" style="display: none">
         <h2>Password Forgotten</h2>
         <div class="warning"><strong>Warning!</strong>
@@ -174,6 +179,7 @@
         </div>
       </div>
 
+      <!--                                                    Error: Missing JavaScript -->
       <noscript>
         <h2>JavasScript Required!</h2>
         <p>This is a secure and encryptet chat application, that runs
@@ -184,15 +190,18 @@
         <p><a href="<%= projecturl %>" target="_blank">more information</a></p>
       </noscript>
 
+      <!--                                                  Error: Missing LocalStorage -->
       <div id="nolocalstorage" style="display: none">
         <p>No access to local storage. Please allow access to local
           storage, i.e. do not block cookies.<p>
       </div>
 
+      <!--                                                       Notice: Setup Messages -->
       <div id="allmessages" style="display: none">
         <p>Setting up all previous messages, please wait …</p>
       </div>
 
+      <!--                                                              Notice: Startup -->
       <div id="startup">
         <p>Starting up …</p>
       </div>