diff --git a/app/views/files/_attachement_list.html.erb b/app/views/files/_attachement_list.html.erb
index c2c8d2d10..eb730640c 100644
--- a/app/views/files/_attachement_list.html.erb
+++ b/app/views/files/_attachement_list.html.erb
@@ -27,7 +27,7 @@
                    :id => '_file',
                    :class => ie8? ? '':'file_selector',
                    :multiple => true,
-                   :onchange => 'addInputFiles(this,"'+ checkBox.to_s+'");',
+                   :onchange => 'addInputFilesCourseSource(this,"'+ checkBox.to_s+'");',
                    :style => ie8? ? '': 'display:none',
                    :data => {
                            :max_file_size => Setting.attachment_max_size.to_i.kilobytes,
diff --git a/public/javascripts/attachments.js b/public/javascripts/attachments.js
index 12384f451..329d0db5a 100644
--- a/public/javascripts/attachments.js
+++ b/public/javascripts/attachments.js
@@ -88,7 +88,7 @@ function addFile_board(inputEl, file, eagerUpload, id) {
     return null;
 }
 
-function addFile(inputEl, file, eagerUpload,checkBox) {
+function addFile(inputEl, file, eagerUpload) {
 
     var attachments_frame = '#attachments_fields';
     if ($(attachments_frame).children().length < 30) {
@@ -99,72 +99,50 @@ function addFile(inputEl, file, eagerUpload,checkBox) {
             'id': 'attachments_' + attachmentId,
             'class': 'attachment'
         });
-        //alert(checkBox);
-        if(checkBox){
-            fileSpan.append(
-                $('<input>', {
-                    'type': 'text',
-                    'class': 'filename readonly',
-                    'name': 'attachments[' + attachmentId + '][filename]',
-                    'readonly': 'readonly'
-                }).val(file.name),
-                $('<input>', {
-                    'type': 'text',
-                    'class': 'description',
-                    'name': 'attachments[' + attachmentId + '][description]',
-                    'maxlength': 254,
-                    'placeholder': $(inputEl).data('descriptionPlaceholder')
-                }).toggle(!eagerUpload),
-                $('<div>', {
-                    'class': 'div_attachments',
-                    'name': 'div_' + 'attachments_' + attachmentId
-                })
-            ).appendTo('#attachments_fields');
-        }else {
-            fileSpan.append(
-                $('<input>', {
-                    'type': 'text',
-                    'class': 'filename readonly',
-                    'name': 'attachments[' + attachmentId + '][filename]',
-                    'readonly': 'readonly'
-                }).val(file.name),
-                $('<input>', {
-                    'type': 'text',
-                    'class': 'description',
-                    'name': 'attachments[' + attachmentId + '][description]',
-                    'maxlength': 254,
-                    'placeholder': $(inputEl).data('descriptionPlaceholder')
-                }).toggle(!eagerUpload),
-                $('<span >' + $(inputEl).data('fieldIsPublic') + ':</span>').attr({
-                    'class': 'ispublic-label'
-                }),
-                $('<input>', {
-                    'type': 'checkbox',
-                    'class': 'is_public_checkbox',
-                    'value': 1,
-                    'name': 'attachments[' + attachmentId + '][is_public_checkbox]',
-                    checked: 'checked'
-                }).toggle(!eagerUpload),
-                $('<a>&nbsp</a>').attr({
-                    'href': "#",
-                    'class': 'remove-upload'
-                }).click(function () {
-                    if (confirm($(inputEl).data('areYouSure'))) {
-                        removeFile();
-                        if (!eagerUpload) {
-                            (function (e) {
-                                reload(e);
-                            })(fileSpan);
-                        }
-                    }
 
-                }).toggle(!eagerUpload),
-                $('<div>', {
-                    'class': 'div_attachments',
-                    'name': 'div_' + 'attachments_' + attachmentId
-                })
-            ).appendTo('#attachments_fields');
-        }
+        fileSpan.append(
+            $('<input>', {
+                'type': 'text',
+                'class': 'filename readonly',
+                'name': 'attachments[' + attachmentId + '][filename]',
+                'readonly': 'readonly'
+            }).val(file.name),
+            $('<input>', {
+                'type': 'text',
+                'class': 'description',
+                'name': 'attachments[' + attachmentId + '][description]',
+                'maxlength': 254,
+                'placeholder': $(inputEl).data('descriptionPlaceholder')
+            }).toggle(!eagerUpload),
+            $('<span >' + $(inputEl).data('fieldIsPublic') + ':</span>').attr({
+                'class': 'ispublic-label'
+            }),
+            $('<input>', {
+                'type': 'checkbox',
+                'class': 'is_public_checkbox',
+                'value': 1,
+                'name': 'attachments[' + attachmentId + '][is_public_checkbox]',
+                checked: 'checked'
+            }).toggle(!eagerUpload),
+            $('<a>&nbsp</a>').attr({
+                'href': "#",
+                'class': 'remove-upload'
+            }).click(function() {
+                if (confirm($(inputEl).data('areYouSure'))) {
+                    removeFile();
+                    if (!eagerUpload) {
+                        (function(e) {
+                            reload(e);
+                        })(fileSpan);
+                    }
+                }
+
+            }).toggle(!eagerUpload),
+            $('<div>', {
+                'class': 'div_attachments',
+                'name': 'div_' + 'attachments_' + attachmentId
+            })
+        ).appendTo('#attachments_fields');
 
         if (eagerUpload) {
             ajaxUpload(file, attachmentId, fileSpan, inputEl);
@@ -195,9 +173,9 @@ function ajaxUpload(file, attachmentId, fileSpan, inputEl) {
         ajaxUpload.uploading++;
 
         uploadBlob(file, $(inputEl).data('upload-path'), attachmentId, {
-                loadstartEventHandler: onLoadstart.bind(progressSpan),
-                progressEventHandler: onProgress.bind(progressSpan)
-            })
+            loadstartEventHandler: onLoadstart.bind(progressSpan),
+            progressEventHandler: onProgress.bind(progressSpan)
+        })
             .done(function(result) {
                 progressSpan.progressbar('value', 100).remove();
                 fileSpan.find('input.description, a').css('display', 'inline-block');
@@ -284,22 +262,22 @@ function removeFile() {
 //gcm delete all file
 //modify by yutao 2015-5-14  ��1��ҳ����ڶ���ϴ��ؼ�ʱ�˿�������bug  �ʸ�֮  start
 function removeAll(containerid) {
-        if (confirm(deleteallfiles)) {
-            if (containerid == undefined) {
-                $(".remove-upload").removeAttr("data-confirm");
-                $(".remove-upload").click();
-            } else {
-                var arr = $(".remove-upload").filter(function() {
-                    return $(this).data('containerid') == containerid;
-                });
-                arr.removeAttr("data-confirm");
-                arr.click();
-            }
+    if (confirm(deleteallfiles)) {
+        if (containerid == undefined) {
+            $(".remove-upload").removeAttr("data-confirm");
+            $(".remove-upload").click();
+        } else {
+            var arr = $(".remove-upload").filter(function() {
+                return $(this).data('containerid') == containerid;
+            });
+            arr.removeAttr("data-confirm");
+            arr.click();
         }
-        //	return false;
     }
-    //modify by yutao 2015-5-14  ��1��ҳ����ڶ���ϴ��ؼ�ʱ�˿�������bug  �ʸ�֮  end
-    //gcm
+    //	return false;
+}
+//modify by yutao 2015-5-14  ��1��ҳ����ڶ���ϴ��ؼ�ʱ�˿�������bug  �ʸ�֮  end
+//gcm
 
 function uploadBlob(blob, uploadUrl, attachmentId, options) {
 
@@ -335,11 +313,10 @@ function uploadBlob(blob, uploadUrl, attachmentId, options) {
 }
 
 function addInputFiles(inputEl) {
-    checkBox = arguments[1] == 'public' ? false : true;
     // var clearedFileInput = $(inputEl).clone().val('');
     if (inputEl.files) {
         // upload files using ajax
-        uploadAndAttachFiles(inputEl.files, inputEl,checkBox);
+        uploadAndAttachFiles(inputEl.files, inputEl);
         //   $(inputEl).remove();
     } else {
         // browser not supporting the file API, upload on form submission
@@ -386,7 +363,7 @@ function addInputFiles_board(inputEl, id) {
     //clearedFileInput.insertAfter('#attachments_fields');
 }
 
-function uploadAndAttachFiles(files, inputEl,checkBox) {
+function uploadAndAttachFiles(files, inputEl) {
 
     var maxFileSize = $(inputEl).data('max-file-size');
     var maxFileSizeExceeded = $(inputEl).data('max-file-size-message');
@@ -401,7 +378,7 @@ function uploadAndAttachFiles(files, inputEl,checkBox) {
         window.alert(maxFileSizeExceeded);
     } else {
         $.each(files, function() {
-            addFile(inputEl, this, true,checkBox);
+            addFile(inputEl, this, true);
         });
     }
 }
@@ -490,3 +467,139 @@ $(function() {
         }
     });
 });
+
+//课程课件
+function addInputFilesCourseSource(inputEl) {
+    checkBox = arguments[1] == 'public' ? false : true;
+    // var clearedFileInput = $(inputEl).clone().val('');
+    if (inputEl.files) {
+        // upload files using ajax
+        uploadAndAttachFilesCourseSource(inputEl.files, inputEl,checkBox);
+        //   $(inputEl).remove();
+    } else {
+        // browser not supporting the file API, upload on form submission
+        var attachmentId;
+        var aFilename = inputEl.value.split(/\/|\\/);
+        var count = $('#attachments_fields>span').length;
+        attachmentId = addFile(inputEl, {
+            name: aFilename[aFilename.length - 1]
+        }, false);
+        if (attachmentId) {
+            $(inputEl).attr({
+                name: 'attachments[' + attachmentId + '][file]'
+            }).hide();
+            if (count <= 0) count = 1;
+            $('#upload_file_count').html("<span id=\"count\">" + count + "</span>" + $(inputEl).data('fileCount'));
+        }
+    }
+
+    //clearedFileInput.insertAfter('#attachments_fields');
+}
+
+function uploadAndAttachFilesCourseSource(files, inputEl,checkBox) {
+
+    var maxFileSize = $(inputEl).data('max-file-size');
+    var maxFileSizeExceeded = $(inputEl).data('max-file-size-message');
+
+    var sizeExceeded = false;
+    $.each(files, function() {
+        if (this.size && maxFileSize != null && this.size > parseInt(maxFileSize)) {
+            sizeExceeded = true;
+        }
+    });
+    if (sizeExceeded) {
+        window.alert(maxFileSizeExceeded);
+    } else {
+        $.each(files, function() {
+            addFileCourseSource(inputEl, this, true,checkBox);
+        });
+    }
+}
+
+function addFileCourseSource(inputEl, file, eagerUpload,checkBox) {
+
+    var attachments_frame = '#attachments_fields';
+    if ($(attachments_frame).children().length < 30) {
+        deleteallfiles = $(inputEl).data('deleteAllFiles');
+        var attachmentId = addFile.nextAttachmentId++;
+
+        var fileSpan = $('<span>', {
+            'id': 'attachments_' + attachmentId,
+            'class': 'attachment'
+        });
+        //alert(checkBox);
+        if(checkBox){
+            fileSpan.append(
+                $('<input>', {
+                    'type': 'text',
+                    'class': 'filename readonly',
+                    'name': 'attachments[' + attachmentId + '][filename]',
+                    'readonly': 'readonly'
+                }).val(file.name),
+                $('<input>', {
+                    'type': 'text',
+                    'class': 'description',
+                    'name': 'attachments[' + attachmentId + '][description]',
+                    'maxlength': 254,
+                    'placeholder': $(inputEl).data('descriptionPlaceholder')
+                }).toggle(!eagerUpload),
+                $('<div>', {
+                    'class': 'div_attachments',
+                    'name': 'div_' + 'attachments_' + attachmentId
+                })
+            ).appendTo('#attachments_fields');
+        }else {
+            fileSpan.append(
+                $('<input>', {
+                    'type': 'text',
+                    'class': 'filename readonly',
+                    'name': 'attachments[' + attachmentId + '][filename]',
+                    'readonly': 'readonly'
+                }).val(file.name),
+                $('<input>', {
+                    'type': 'text',
+                    'class': 'description',
+                    'name': 'attachments[' + attachmentId + '][description]',
+                    'maxlength': 254,
+                    'placeholder': $(inputEl).data('descriptionPlaceholder')
+                }).toggle(!eagerUpload),
+                $('<span >' + $(inputEl).data('fieldIsPublic') + ':</span>').attr({
+                    'class': 'ispublic-label'
+                }),
+                $('<input>', {
+                    'type': 'checkbox',
+                    'class': 'is_public_checkbox',
+                    'value': 1,
+                    'name': 'attachments[' + attachmentId + '][is_public_checkbox]',
+                    checked: 'checked'
+                }).toggle(!eagerUpload),
+                $('<a>&nbsp</a>').attr({
+                    'href': "#",
+                    'class': 'remove-upload'
+                }).click(function () {
+                    if (confirm($(inputEl).data('areYouSure'))) {
+                        removeFile();
+                        if (!eagerUpload) {
+                            (function (e) {
+                                reload(e);
+                            })(fileSpan);
+                        }
+                    }
+
+                }).toggle(!eagerUpload),
+                $('<div>', {
+                    'class': 'div_attachments',
+                    'name': 'div_' + 'attachments_' + attachmentId
+                })
+            ).appendTo('#attachments_fields');
+        }
+
+        if (eagerUpload) {
+            ajaxUpload(file, attachmentId, fileSpan, inputEl);
+
+        }
+        return attachmentId;
+    }
+    return null;
+}
+addFileCourseSource.nextAttachmentId = 1;
\ No newline at end of file