diff --git a/home.html b/home.html
index 43dbec3..c41d092 100644
--- a/home.html
+++ b/home.html
@@ -132,8 +132,8 @@
                 <input type="file" id="fileInputAttach" style="font-size: 10px; width: 135px;"/>
               </span>
               <span class="post-area-remaining">140</span>
-              <button class="undo-unicode disabled" disabled="disabled">undo</button>
-              <button class="post-submit disabled" disabled="disabled">post</button>
+              <button class="undo-unicode disabled" disabled>undo</button>
+              <button class="post-submit disabled" disabled>post</button>
             </div>
           </form>
         </div>
@@ -174,8 +174,8 @@
                 <input type="file" id="fileInputAttach" style="font-size: 10px;"/>
              </span>
              <span class="post-area-remaining">140</span>
-                <button class="undo-unicode disabled" disabled="disabled">undo</button>
-                <button class="post-submit disabled" disabled="disabled">post</button>
+                <button class="undo-unicode disabled" disabled>undo</button>
+                <button class="post-submit disabled" disabled>post</button>
             </div>
           </form>
         </div>
@@ -382,8 +382,8 @@
                         <textarea placeholder="Reply..."></textarea>
                         <div class="post-area-extras">
                             <span class="post-area-remaining">140</span>
-                            <button class="undo-unicode disabled" disabled="disabled">undo</button>
-                            <button class="post-submit disabled" disabled="disabled">post</button>
+                            <button class="undo-unicode disabled" disabled>undo</button>
+                            <button class="post-submit disabled" disabled>post</button>
                         </div>
                     </form>
                 </div>
@@ -491,8 +491,8 @@
                 <div class="availability"></div>
             </div>
             <div>
-                <button class="check" disabled="disabled">Check availability</button>
-                <button class="create" disabled="disabled">Create this nickname</button>
+                <button class="check" disabled>Check availability</button>
+                <button class="create" disabled>Create this nickname</button>
             </div>
         </div>
         <div class="module import-account">
@@ -505,7 +505,7 @@
                 <input class="alias" type="textbox" placeholder="Type nickname here"></input>
             </div>
             <div>
-                <button class="import" disabled="disabled">Import key</button>
+                <button class="import" disabled>Import key</button>
             </div>
         </div>
     </div>
@@ -516,8 +516,8 @@
           <textarea placeholder="New Post..."></textarea>
           <div class="post-area-extras">
             <span class="post-area-remaining">140</span>
-            <button class="undo-unicode disabled" disabled="disabled">undo</button>
-            <button class="post-submit disabled" disabled="disabled">post</button>
+            <button class="undo-unicode disabled" disabled>undo</button>
+            <button class="post-submit disabled" disabled>post</button>
           </div>
           <div class="modal-buttons">
             <span class="switch-mode">Switch to Reply</span>
@@ -534,8 +534,8 @@
           <div class="post-area-extras">
             <span class="switch-mode">Switch to Retransmit</span>
             <span class="post-area-remaining">140</span>
-            <button class="undo-unicode disabled" disabled="disabled">undo</button>
-            <button class="post-submit disabled" disabled="disabled">post</button>
+            <button class="undo-unicode disabled" disabled>undo</button>
+            <button class="post-submit disabled" disabled>post</button>
           </div>
         </form>
       </div>
@@ -590,8 +590,8 @@
         <textarea placeholder="New direct message..."></textarea>
         <div class="post-area-extras">
           <span class="post-area-remaining">140</span>
-          <button class="undo-unicode disabled" disabled="disabled">undo</button>
-          <button title="Direct messages are encrypted, only you and receiver can read them" style="margin-right:7.5%;" class="dm-submit disabled" disabled="disabled">send</button>
+          <button class="undo-unicode disabled" disabled>undo</button>
+          <button title="Direct messages are encrypted, only you and receiver can read them" style="margin-right:7.5%;" class="dm-submit disabled" disabled>send</button>
         </div>
       </form>
     </div>
@@ -610,7 +610,7 @@
             <button class="invite">Invite peers</button>
             <button class="leave">Leave group</button>
             <div class="invite-form">
-                <textarea placeholder="@peer1 @peer2 …"></textarea><button disabled="disabled">Invite</button>
+                <textarea placeholder="@peer1 @peer2 …"></textarea><button disabled>Invite</button>
             </div>
         </div>
     </div>
@@ -620,17 +620,17 @@
             <div class="profile-card-main">
                 <div class="profile-bio">
                     <input class="group-description"></input>
-                    <button class="save a-button" disabled="disabled">Save</button>
+                    <button class="save a-button" disabled>Save</button>
                     <button class="cancel a-button">Cancel</button>
                 </div>
             </div>
             <div class="profile-card-buttons group-messages-control b-buttons">
-                <button class="direct-messages-with-user" disabled="disabled">Messages</button>
-                <button class="invite" disabled="disabled">Invite peers</button>
-                <button class="show-secret-key" disabled="disabled">Secret Key</button>
-                <button class="leave" disabled="disabled">Leave group</button>
+                <button class="direct-messages-with-user" disabled>Messages</button>
+                <button class="invite" disabled>Invite peers</button>
+                <button class="show-secret-key" disabled>Secret Key</button>
+                <button class="leave" disabled>Leave group</button>
                 <div class="invite-form">
-                    <textarea placeholder="@peer1 @peer2 …"></textarea><button disabled="disabled">Invite</button>
+                    <textarea placeholder="@peer1 @peer2 …"></textarea><button disabled>Invite</button>
                 </div>
                 <div class="secret-key"></div>
             </div>
@@ -666,7 +666,7 @@
                 <textarea class="invite" placeholder="Invite somebody"></textarea>
             </div>
             <div>
-                <button class="create" disabled="disabled">Create</button>
+                <button class="create" disabled>Create</button>
             </div>
         </div>
     </div>
@@ -678,7 +678,7 @@
                 <ul class="groups-list"></ul>
             </div>
             <div>
-                <button class="join" disabled="disabled">Join</button>
+                <button class="join" disabled>Join</button>
             </div>
         </div>
         <div class="module">
@@ -687,7 +687,7 @@
                 <input class="secret-key-import" type="textbox" placeholder="52-characters secret" size="52" rows="1"></input>
             </div>
             <div>
-                <button class="import-secret-key" disabled="disabled">Import key</button>
+                <button class="import-secret-key" disabled>Import key</button>
             </div>
         </div>
     </div>
diff --git a/network.html b/network.html
index cb4904b..1e37079 100644
--- a/network.html
+++ b/network.html
@@ -113,12 +113,12 @@
           <li>
               <label>Force connection to peer:</label>
               <input class="new-peer-addr" type="textbox" placeholder="peer address" size="20"/>
-              <button class="add-peer disabled" disable="true">Add peer</button>
+              <button class="add-peer disabled" disabled>Add peer</button>
           </li>
           <li>
               <label>DNS to obtain list of peers:</label>
               <input class="new-dns-addr" type="textbox" placeholder="dns address" size="20"/>
-              <button class="add-dns disabled" disable="true">Add DNS</button>
+              <button class="add-dns disabled" disabled>Add DNS</button>
           </li>
         </ul>
 
@@ -216,8 +216,8 @@
                 <textarea class="spam-msg" placeholder="Type message here"></textarea>
                 <div class="post-area-extras">
                   <span class="post-area-remaining">140</span>
-                  <button class="undo-unicode disabled" disabled="true">undo</button>
-                  <button class="post-submit update-spam-msg disabled" disabled="true">Update</button>
+                  <button class="undo-unicode disabled" disabled>undo</button>
+                  <button class="post-submit update-spam-msg disabled" disabled>Update</button>
                 </div>
               </form>
             </div>
diff --git a/options.html b/options.html
index 2ece69a..f9dcd8f 100644
--- a/options.html
+++ b/options.html
@@ -45,7 +45,7 @@
   <div class="wrapper">
     <div class="options">
 
-      <input id="tab_language" name="option_tab" type="radio" checked="checked" class="selectable_theme theme_nin"/>
+      <input id="tab_language" name="option_tab" type="radio" checked class="selectable_theme theme_nin"/>
       <label for="tab_language" class="tabs selectable_theme theme_nin">Language</label>
       <input id="t-2" name="option_tab" type="radio"  class="selectable_theme theme_nin"/>
       <label for="t-2" class="tabs selectable_theme theme_nin">Theme</label>
diff --git a/tmobile.html b/tmobile.html
index 7ae99a9..cd6f288 100644
--- a/tmobile.html
+++ b/tmobile.html
@@ -333,7 +333,7 @@
           <textarea placeholder="New Post..." style="height:85px; width:270px;"></textarea>
           <div class="post-area-extras">
             <span class="post-area-remaining">140</span>
-            <button class="post-submit disabled" disabled="disabled"
+            <button class="post-submit disabled" disabled
                     style="float:right; height:44px; font-weight: bold; font-size: 115%%; margin-bottom: 5px; margin-right: 5px;">
               Send</button>
           </div>
@@ -530,12 +530,12 @@
           <li>
               <label>Force connection to peer:</label>
               <input class="new-peer-addr" type="textbox" placeholder="peer address" size="20"/>
-              <button class="add-peer disabled" disabled="disabled">Add peer</button>
+              <button class="add-peer disabled" disabled>Add peer</button>
           </li>
           <li>
               <label>DNS to obtain list of peers:</label>
               <input class="new-dns-addr" type="textbox" placeholder="dns address" size="20"/>
-              <button class="add-dns disabled" disabled="disabled">Add DNS</button>
+              <button class="add-dns disabled" disabled>Add DNS</button>
           </li>
         </ul>
 
@@ -626,7 +626,7 @@
         <textarea placeholder="New direct message..."></textarea>
         <div class="post-area-extras">
           <span class="post-area-remaining">140</span>
-          <button class="dm-submit disabled" disabled="disabled">send</button>
+          <button class="dm-submit disabled" disabled>send</button>
         </div>
       </form>
     </div>
@@ -905,8 +905,8 @@
             <span class="availability"></span>
         </div>
         <div>
-            <button class="check" disabled="disabled">Check availability</button>
-            <button class="create" disabled="disabled">Create this nickname</button>
+            <button class="check" disabled>Check availability</button>
+            <button class="create" disabled>Create this nickname</button>
         </div>
       </div>
 
@@ -923,7 +923,7 @@
             <input class="alias" type="textbox" placeholder="Type nickname here" size="16" rows="1"></input>
         </div>
         <div>
-            <button class="import" disabled="disabled">Import key</button>
+            <button class="import" disabled>Import key</button>
         </div>
       </div>
     </div>