diff --git a/theme/classic.html b/theme/classic.html
index 17740ad..a9db090 100644
--- a/theme/classic.html
+++ b/theme/classic.html
@@ -21,8 +21,8 @@
     <meta name=viewport content="width=device-width,initial-scale=1">
     <meta name="keywords" content="<!--Keywords-->">
     <meta name="description" content="<!--Description-->">
-    <link rel="icon" href="https://cdn.jsdelivr.net/gh/ldxw/CDN@0.003/favicon/64x64/favicon.ico" type="image/x-icon" />
-    <link rel="shortcut icon" href="https://cdn.jsdelivr.net/gh/ldxw/CDN@0.003/favicon/64x64/favicon.ico" type="image/x-icon" />
+    <link rel="icon" href="<!--base_path-->favicon.ico" type="image/x-icon">
+    <link rel="shortcut icon" href="<!--base_path-->favicon.ico" type="image/x-icon">
     <style type="text/css">
         body{font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;font-size:14px;line-height:1em;color:#000;background-color:#f7f7f9;<!--BackgroundStart-->background-repeat:no-repeat;background-size:cover;background-attachment:fixed;background-image:url("<!--BackgroundUrl-->");<!--BackgroundEnd-->}
         a{color:#24292e;cursor:pointer;text-decoration:none}
@@ -222,6 +222,7 @@
                             <a onclick="sortby('a');"><!--constStr@File--></a>
 <!--ShowThumbnailsStart-->
                             &nbsp;&nbsp;&nbsp;
+                            <label><input type="checkbox" id="originalpic"><!--constStr@OriginalPic--></label>
                             <button onclick="showthumbnails(this);"><!--constStr@ShowThumbnails--></button>
 <!--ShowThumbnailsEnd-->
                             &nbsp;
@@ -246,7 +247,7 @@
                             </li>
 <!--AdminEnd-->
                             <ion-icon name="folder"></ion-icon>
-                            <a id="file_a<!--filenum-->" name="filelist" href="<!--FileEncodeReplaceUrl-->/"><!--FileEncodeReplaceName--></a>
+                            <a id="file_a<!--filenum-->" name="folderlist" href="<!--FileEncodeReplaceUrl-->/"><!--FileEncodeReplaceName--></a>
                         </td>
                         <td class="updated_at" id="folder_time<!--filenum-->"><!--lastModifiedDateTime--></td>
                         <td class="size" id="folder_size<!--filenum-->"><!--size--></td>
@@ -632,29 +633,37 @@
 <!--ReadmemdEnd-->
 <!--ShowThumbnailsStart-->
     function showthumbnails(obj) {
+        images = [<!--ImgExts-->];
         var files=document.getElementsByName('filelist');
         for ($i=0;$i<files.length;$i++) {
             str=files[$i].innerText;
             if (str.substr(-1)==' ') str=str.substr(0,str.length-1);
-            if (!str) return;
+            if (!str) continue;
             strarry=str.split('.');
             ext=strarry[strarry.length-1].toLowerCase();
-            images = [<!--ImgExts-->];
-            if (images.indexOf(ext)>-1) get_thumbnails_url(str, files[$i]);
+            if (images.indexOf(ext)>-1) {
+                if (document.getElementById('originalpic').checked==true) {
+                    var url=files[$i].href;
+                    url=url.substr(0,url.length-8);
+                    files[$i].parentNode.parentNode.innerHTML='<td colspan="3"><img src="'+url+'" alt="'+str+'" onload="if (this.offsetWidth>document.getElementById(\'list-div\').offsetWidth) this.style.width=\'100%\';"></td>';
+                    $i--;
+                } else {
+                    var nurl=window.location.href;
+                    if (nurl.substr(-1)!="/") nurl+="/";
+                    var url=nurl+str+'?thumbnails';
+                    get_thumbnails_url(url, str, files[$i]);
+                }
+            }
         }
         obj.disabled='disabled';
     }
-    function get_thumbnails_url(str, filea) {
-        if (!str) return;
-        var nurl=window.location.href;
-        if (nurl.substr(-1)!="/") nurl+="/";
+    function get_thumbnails_url(url, name, filea) {
         var xhr = new XMLHttpRequest();
-        xhr.open("GET", nurl+str+'?thumbnails', true);
-                //xhr.setRequestHeader('x-requested-with','XMLHttpRequest');
+        xhr.open("GET", url, true);
         xhr.send('');
         xhr.onload = function(e){
             if (xhr.status==200) {
-                if (xhr.responseText!='') filea.innerHTML='<img src="'+xhr.responseText+'" alt="'+str+'">';
+                if (xhr.responseText!='') filea.innerHTML='<img src="'+xhr.responseText+'" alt="'+name+'">';
             } else console.log(xhr.status+'\n'+xhr.responseText);
         }
     }
@@ -895,7 +904,7 @@
                     } else {
                         StartStr='<!--constStr@LastUpload-->'+size_format(newstartsize)+ '<br><!--constStr@ThisTime--><!--constStr@UploadStartAt-->:' +StartTime.toLocaleString()+'<br>' ;
                     }
-                    var chunksize=15*1024*1024; // chunk size, max 60M. 每小块上传大小，最大60M，微软建议10M
+                    var chunksize=5*1024*1024; // chunk size, max 60M. 每小块上传大小，最大60M，微软建议10M
                     if (totalsize>200*1024*1024) chunksize=10*1024*1024;
                     function readblob(start) {
                         var end=start+chunksize;