diff --git a/admin/editor-js.php b/admin/editor-js.php
index 495ef0ae..1a356645 100644
--- a/admin/editor-js.php
+++ b/admin/editor-js.php
@@ -131,17 +131,24 @@ $(document).ready(function () {
     editor.hooks.chain('enterFakeFullScreen', function () {
         th = textarea.height();
         $(document.body).addClass('fullscreen');
-        textarea.css('height', $(window).height() - toolbar.outerHeight());
+        var h = $(window).height() - toolbar.outerHeight();
+        
+        textarea.css('height', h);
+        preview.css('height', h);
     });
 
     editor.hooks.chain('enterFullScreen', function () {
         $(document.body).addClass('fullscreen');
-        textarea.css('height', window.screen.height - toolbar.outerHeight());
+        
+        var h = window.screen.height - toolbar.outerHeight();
+        textarea.css('height', h);
+        preview.css('height', h);
     });
 
     editor.hooks.chain('exitFullScreen', function () {
         $(document.body).removeClass('fullscreen');
         textarea.height(th);
+        preview.css('height', 'auto');
     });
 
     editor.run();
diff --git a/admin/js/markdown.js b/admin/js/markdown.js
index 8d669c5e..9e57430f 100644
--- a/admin/js/markdown.js
+++ b/admin/js/markdown.js
@@ -216,7 +216,7 @@ this.makeHtml = function(text) {
         text = _ExecuteExtension(x, text);
     });
 
-    text = text.replace(/<\/?(\!doctype|html|head|body|link|title|input|select|button|textarea|style|script|noscript|iframe|object|embed)[^>]*>/ig, function (all) {
+    text = text.replace(/<\/?(\!doctype|html|head|body|link|title|input|select|button|textarea|style|noscript)[^>]*>/ig, function (all) {
         return all.replace(/&/g, '&amp;')
             .replace(/</g, '&lt;')
             .replace(/>/g, '&gt;')
@@ -225,7 +225,7 @@ this.makeHtml = function(text) {
         return all;
     });
 
-    if (text.indexOf('<!--more-->')) {
+    if (text.indexOf('<!--more-->') > 0) {
         var parts = text.split(/\s*<\!\-\-more\-\->\s*/),
             summary = parts.shift(),
             details = parts.join('');
@@ -4858,10 +4858,10 @@ else
 
                     if (!chunk.selection) {
                         if (isImage) {
-                            chunk.selection = that.getString("imagename") || that.getString("imagedescription");
+                            chunk.selection = that.getString("imagename").replace('_', '\\_') || that.getString("imagedescription");
                         }
                         else {
-                            chunk.selection = that.getString("linkname") || that.getString("linkdescription");
+                            chunk.selection = that.getString("linkname").replace('_', '\\_') || that.getString("linkdescription");
                         }
                     }
                 }
@@ -5307,7 +5307,7 @@ else
     commandProto.doMore = function (chunk, postProcessing) {
         chunk.startTag = "<!--more-->\n\n";
         chunk.selection = "";
-        chunk.skipLines(2, 1, true);
+        chunk.skipLines(2, 0, true);
     }
 
     commandProto.doTab = function (chunk, postProcessing) {
diff --git a/admin/js/typecho.js b/admin/js/typecho.js
index 8f848e6f..5ae22962 100644
--- a/admin/js/typecho.js
+++ b/admin/js/typecho.js
@@ -232,8 +232,9 @@
                 return true;
             }
 
+            file = file.toLowerCase();
             for (var i = 0; i < s.types.length; i ++) {
-                var ext = s.types[i];
+                var ext = s.types[i].toLowerCase();
 
                 if (file.length <= ext.length) {
                     continue;
diff --git a/var/Widget/Contents/Post/Edit.php b/var/Widget/Contents/Post/Edit.php
index 116d13c7..ec7c96eb 100644
--- a/var/Widget/Contents/Post/Edit.php
+++ b/var/Widget/Contents/Post/Edit.php
@@ -187,6 +187,7 @@ class Widget_Contents_Post_Edit extends Widget_Abstract_Contents implements Widg
                 $contents['status'] = 'publish';
             } else {
                 $contents['status'] = $contents['visibility'];
+                $contents['password'] = '';
             }
         } else {
             $contents['status'] = 'waiting';
@@ -259,6 +260,7 @@ class Widget_Contents_Post_Edit extends Widget_Abstract_Contents implements Widg
                 $contents['status'] = 'publish';
             } else {
                 $contents['status'] = $contents['visibility'];
+                $contents['password'] = '';
             }
         } else {
             $contents['status'] = 'waiting';