diff --git a/public/javascripts/course.js b/public/javascripts/course.js
index 62769f2f5..85f718d31 100644
--- a/public/javascripts/course.js
+++ b/public/javascripts/course.js
@@ -395,39 +395,6 @@ function show_bid_dead_line(year,month,day,divname)
     + "<p class='fr'>作品提交还剩：</p>");
 }
 
-//新建作业，下一步按钮
-function select_homework_common_type(url,course_id)
-{
-    var homework_common_type = "";
-    if($("#homework_detail_manual_radio").attr("checked") == "checked"){
-        homework_common_type = "homework_detail_manual";
-    }
-    else if($("#homework_detail_programing_radio").attr("checked") == "checked"){
-        homework_common_type = "homework_detail_programing";
-    }
-    else{
-        alert("未知错误，请联系管理员");
-        return;
-    }
-    $.get(
-        url,
-        {
-            course: course_id,
-            homework_common_type: homework_common_type
-        },
-        function (data) {
-        }
-    );
-}
-
-//新建作业，上一步按钮
-function return_homework_common_type()
-{
-    $("#homework_detail_manual").hide();
-    $("#homework_detail_programing").hide();
-    $("#hwork_new").show();
-}
-
 //验证新建作业的名字
 function regex_homework_name()
 {