<% if (@obj_pages &&( @obj_pages.page > 1)) || (@feedback_pages && (@feedback_pages.page > 1)) %> //搜索的时候有时候是需要加载下一页，有时候是直接替换当前 #course_list。这个根据 page来判定
    $("#show_more_attachments").replaceWith("<%= escape_javascript( render :partial => 'files/course_list',:locals => {course: @course,all_attachments:  @result,sort:@sort,order:@order,curse_attachments:@searched_attach}   )%>");
<% else %>
    $("#course_list").html("<%= escape_javascript(render :partial => 'files/course_list',:locals => {course: @course,all_attachments: @result,sort:@sort,order:@order,curse_attachments:@searched_attach})%>");
    $("#attachment_count").html("<%= @result.count%>")
<% end %>