diff --git a/app/views/files/_course_file.html.erb b/app/views/files/_course_file.html.erb
index 04ce917c8..0823fae4b 100644
--- a/app/views/files/_course_file.html.erb
+++ b/app/views/files/_course_file.html.erb
@@ -31,6 +31,11 @@
          $('#insite').attr("class", "re_schbtn b_dblue");
        }
    }
+   function buttoncss()
+   {
+       $('#incourse').attr("class", "re_schbtn b_lblue");
+       $('#insite').attr("class", "re_schbtn b_lblue");
+   }
 
 </script>
 
@@ -39,8 +44,8 @@
 <div class="re_top">
       <%= form_tag( search_course_files_path(@course), method: 'get',:class => "re_search f_l",:remote=>true) do %>
           <%= text_field_tag 'name', params[:name], name: "name", :class => 're_schbox',:style=>"padding: 0px"%>
-          <%= submit_tag "课内搜索", :class => "re_schbtn b_lblue",:name => "incourse",:id => "incourse", :onclick => "presscss('incourse')"%>
-          <%= submit_tag "全站搜索", :class => "re_schbtn b_lblue",:name => "insite",:id => "insite",:onclick => "presscss('insite')" %>
+          <%= submit_tag "课内搜索", :class => "re_schbtn b_lblue",:name => "incourse",:id => "incourse", :onmouseover => "presscss('incourse')",:onmouseout =>"buttoncss()" %>
+          <%= submit_tag "全站搜索", :class => "re_schbtn b_lblue",:name => "insite",:id => "insite",:onmouseover => "presscss('insite')",:onmouseout =>"buttoncss()" %>
       <% end %>
   <% if is_course_teacher(User.current,@course) %>
     <a href="javascript:void(0)" class="re_fabu f_r b_lblue" onclick="show_upload()">上传资源</a>