//配置课程信息
function course_setting(id)
{
    //alert(id);
    //$('#tb_'+id).removeClass().addClass("hwork_hovertab");
    //$('#tbc_0'+id).removeClass().addClass("dis");
    //$('#tb_'+(3-id)).removeClass().addClass("hwork_normaltab");
    //$('#tbc_0'+(3-id)).removeClass().addClass("undis");
    for (var i = 1; i < 4; i++) {
        if (i == id) {
            $("#tb_" + i).removeClass().addClass("hwork_hovertab");
            $("#tbc_0" + i).removeClass().addClass("dis");
        }
        else {
            $("#tb_" + i).removeClass().addClass("hwork_normaltab");
            $("#tbc_0" + i).removeClass().addClass("undis");
        }
    }
}

$(function(){
   $("img").removeAttr("align");
});

///////////////////////////////////////////////////////////////
//添加分班
function add_group(url,course_id) {
    var group_name = $('#group_name').val();
    $.get(
        url,
        { valid: "name",
        value: group_name,
        course_id: course_id },
        function (data) {
            if (data.valid) {
                $("#add_group_name").submit();
            }
            else
            {
                alert(data.message);
            }
        }
    );
}
//修改分班:修改分班时得考虑什么都不改但是点击确定的情况
function edit_group(id,url,course_id,group_id)
{
    var group_name = $('#'+id).val();
    $.get(
        url,
        {
            valid: "name",
            value: group_name,
            course_id: course_id,
            group_id: group_id
        },
        function (data) {
            if (data.valid) {
                $("#update_group_"+group_id).submit();
            }
            else
            {
                alert(data.message);
            }
        }
    );
}

function hidden_homework_score_form()
{
    hideModal($("#user_score"));
}
///////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////新建课程相关
//验证课程名称
function regex_course_name(str)
{
    var name = $.trim($("#"+str+"_course_name").val());
    if(name.length < 2)
    {
        $("#"+str+"_course_name_notice").show();
        return false;
    }
    else
    {
        $("#"+str+"_course_name_notice").hide();
        return true;
    }
}
//验证课程学时
function regex_course_class_period(str)
{
    var class_period = $.trim($("#"+str+"_class_period").val());
    var regex = /^\d*$/;
    if(class_period.length == 0)
    {
        $("#"+str+"_course_class_period_notice").html("学时总数不能为空");
        $("#"+str+"_course_class_period_notice").show();
        return false;
    }
    else if (regex.test(class_period)) {
        if(parseInt(class_period) > 0)
        {
            $("#"+str+"_course_class_period_notice").html("");
            $("#"+str+"_course_class_period_notice").hide();
            return true;
        }
        else
        {
            $("#"+str+"_course_class_period_notice").html("学时总数必须大于0");
            $("#"+str+"_course_class_period_notice").show();
            return false;
        }
    }
    else
    {
        $("#"+str+"_course_class_period_notice").html("学时总数必须为正整数");
        $("#"+str+"_course_class_period_notice").show();
        return false;
    }
}
//验证开始学期和结束学期
function regex_time_term(str){
    var obj_time = document.getElementById(str+"_time");
    var obj_end_time = document.getElementById(str+"_end_time");
    var obj_term = document.getElementById(str+"_term");
    var obj_end_term = document.getElementById(str+"_end_term");
    var time = obj_time.options[obj_time.selectedIndex];
    var end_time = obj_end_time.options[obj_end_time.selectedIndex];
    var term = obj_term.options[obj_term.selectedIndex];
    var end_term = obj_end_term.options[obj_end_term.selectedIndex];
    if(time.value == end_time.value) {
        if(set_term_val(term.value) > set_term_val(end_term.value)) {
            $("#"+str+"_course_time_term_notice").html("开始学期不能晚于结束学期");
            $("#"+str+"_course_time_term_notice").show();
            return false;
        } else {
            $("#"+str+"_course_time_term_notice").html("");
            $("#"+str+"_course_time_term_notice").hide();
            return true;
        }
    } else if(time.value < end_time.value) {
        $("#"+str+"_course_time_term_notice").html("");
        $("#"+str+"_course_time_term_notice").hide();
        return true;
    } else {
        $("#"+str+"_course_time_term_notice").html("开始学期不能晚于结束学期");
        $("#"+str+"_course_time_term_notice").show();
        return false;
    }
}
//学期转换为数字
function set_term_val(val) {
    if(val == "春季学期"){
        return 1;
    } else if(val == "夏季学期"){
        return 2;
    } else if(val == "秋季学期"){
        return 3;
    }
}
//验证密码
function regex_course_password(str)
{
    var class_period = $.trim($("#"+str+"_course_course_password").val());
    var regex = /^\w+$/;
    if(class_period.length == 0)
    {
        $("#"+str+"_course_course_password_notice").html("课程密码不能为空");
        $("#"+str+"_course_course_password_notice").show();
        return false;
    }
    else if (regex.test(class_period)) {
        $("#"+str+"_course_course_password_notice").html("");
        $("#"+str+"_course_course_password_notice").hide();
        return true;
    }
    else
    {
        $("#"+str+"_course_course_password_notice").html("课程密码有非法字符");
        $("#"+str+"_course_course_password_notice").show();
        return false;
    }
}
//验证课程大纲
function regex_syllabus_option(str) {
    if(document.getElementById(str + "_syllabus_id")) {
        var obj = document.getElementById(str + "_syllabus_id");
        var syllabus = obj.options[obj.selectedIndex];
        if(parseInt(syllabus.value) == 0) {
            return false;
        } else{
            return true;
        }
    } else {
        return true;
    }
}
//提交新建课程
function submit_new_course()
{
    if(regex_syllabus_option('new')&&regex_course_name('new')&&regex_course_class_period('new')&&regex_time_term('new'))
    {
        $("#new_course").submit();
    }
}

function submit_edit_course(id)
{
    if(regex_syllabus_option('edit')&&regex_course_name('edit')&&regex_course_class_period('edit')&&regex_time_term('edit'))
    {
        $("#edit_course_"+id).submit();
    }
}

//新建课程大纲
function submit_new_syllabus()
{
    if(regex_syllabus_name())
    {
        $("#new_syllabus").submit();
    }
}

//课程讨论区
function regexTopicSubject() {
    var name = $("#message_subject").val();
    if(name.length ==0)
    {
        $("#subjectmsg").text("标题不能为空");
        $("#subjectmsg").css('color','#ff0000');
        $("#message_subject").focus();
        return false;
    }
    else if(name.length <= 255)
    {
        $("#subjectmsg").text("填写正确");
        $("#subjectmsg").css('color','#008000');
        return true;
    }
    else
    {
        $("#subjectmsg").text("标题超过255个字符");
        $("#subjectmsg").css('color','#ff0000');
        $("#message_subject").focus();
        return false;
    }
}

function regexTopicDescription()
{
    var name = message_content_editor.html();
    if(message_content_editor.isEmpty())
    {
        $("#message_content_span").text("描述不能为空");
        $("#message_content_span").css('color','#ff0000');
        return false;
    }
    else if(name.length >=6000){
        $("#message_content_span").text("描述最多3000个汉字(或6000个英文字符)");
        $("#message_content_span").css('color','#ff0000');
        return false;
    }
    else
    {
        $("#message_content_span").text("填写正确");
        $("#message_content_span").css('color','#008000');
        return true;
    }
}

function submit_topic()
{
//    if(regexTopicSubject() && regexTopicDescription())
//    {
        message_content_editor.sync();
        $("#message-form").submit();
//    }
}

function reset_topic(){

}

///////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////课程讨论区
function regexSubject(id) {
    var subjectid = "#message_subject" + id ;
    var content = $.trim($(subjectid).val());
    var message = "#subject_span" + id;
    if (content.length == 0) {
        $(message).text("主题不能为空");
        $(message).css('color', '#ff0000');
        return  false;
    }
    else {
        $(message).text("填写正确");
        $(message).css('color', '#008000');
        return true;
    }
    return false;
}
function regexContent(id) {
    var contentid = "#message_content" + id;
    var message = "#message_content_span"+ id;
    var content = $.trim($(contentid).val());
    if (content.length == 0) {
        $(message).text("描述不能为空");
        $(message).css('color', '#ff0000');
        return  false;
    }
    else {
        $(message).text("填写正确");
        $(message).css('color', '#008000');
        return true;
    }
    return false;
}

// 项目讨论区编辑和提交
function submitProjectsBoard(id) {
    var formid = "#message-form" + id;
    if (regexSubject(id) && regexContent(id)) {
        $(formid).submit();
    }
}


///////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////// 课程通知
function regexTitle()
{
    var name = $("#news_title").val();
    if(name.length ==0)
    {
        $("#title_notice_span").text("标题不能为空");
        $("#title_notice_span").css('color','#ff0000');
        $("#news_title").focus();
        return false;
    }
    else if(name.length <= 60)
    {
        $("#title_notice_span").text("填写正确");
        $("#title_notice_span").css('color','#008000');
        return true;
    }
    else
    {
        $("#title_notice_span").text("标题超过60个字符");
        $("#title_notice_span").css('color','#ff0000');
        $("#news_title").focus();
        return false;
    }
}

function regexDescription()
{
    var name = news_description_editor.html();
    if(news_description_editor.isEmpty())
    {
        $("#description_notice_span").text("描述不能为空");
        $("#description_notice_span").css('color','#ff0000');
        $("#description_notice_span").focus();
        return false;
    }
    /*else if(name.length >=6000){
        $("#description_notice_span").text("描述最多3000个汉字(或6000个英文字符)");
        $("#description_notice_span").css('color','#ff0000');
        $("#description_notice_span").focus();
        return false;
    }*/
    else
    {
        $("#description_notice_span").text("填写正确");
        $("#description_notice_span").css('color','#008000');
        return true;
    }
}

function submitNews()
{
    if(regexTitle() && regexDescription())
    {
        news_description_editor.sync();
        $("#news-form").submit();
    }
}

function submitFocus(obj)
{
    $(obj).focus();
}

function submitComment()
{
    if (newsReplyVerify()) {
        comment_editor.sync();
        $("#add_comment_form").submit();
    }
}

function newsReplyVerify() {
    var content = comment_editor.html();
    if(comment_editor.isEmpty()) {
        $("#add_reply_news").text("评论不能为空");
        $("#add_reply_news").css('color', '#ff0000');
        $("#news_submit_comment").one('click',function(){
            submitComment();
        });
        return false;
    } else {
        $("#add_reply_news").text("填写正确");
        $("#add_reply_news").css('color', '#008000');
        return true;
    }
}

/////////////////////////////////////////////////课程讨论区
function course_board_submit_message_replay()
{
    if(MessageReplayVevify())
    {
        message_content_editor.sync();//提交内容之前要sync，不然服务器端取不到值
        $("#message_form").submit();
    }
}

function course_board_canel_message_replay()
{
    $("#reply").hide(200);
    $("#message_quote").html("");
}

function MessageReplayVevify() {
    var content = message_content_editor.html();//$.trim($("#message_content").val());
    if (message_content_editor.isEmpty()) {
        $("#message_content_span").text("回复不能为空");
        $("#message_content_span").css('color', '#ff0000');
        return  false;
    }
    else {
        $("#message_content_span").text("填写正确");
        $("#message_content_span").css('color', '#008000');
        return true;
    }
}
//////////////////////////////////////////////////

///////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////
//验证搜索时输入名字
function regexName(content)
{
    var name = $.trim($("#name").val());
    if(name.length == 0)
    {
        $("#project_name_span").text(content);
        $("#project_name_span").css('color','#ff0000');
        $("#project_name_span").focus();
        return false;
    }
    else
    {
        $("#project_name_span").text("");
        return true;
    }
}
//提交搜索
function submitSerch(content)
{
    if(regexName(content)){$("#course_search_form").submit();}
}

//验证搜索时输入名字
function regexQ(content)
{
    var name = $.trim($("#q").val());
    if(name.length == 0)
    {
        $("#course_member_name_span").text(content);
        $("#course_member_name_span").css('color','#ff0000');
        $("#course_member_name_span").focus();
        return false;
    }
    else
    {
        $("#course_member_name_span").text("");
        return true;
    }
}
//提交课程成员搜索
function submitMemberSerch(content)
{
    //if(regexQ(content)){$("#course_member_search_form").submit();}
    $("#course_member_search_form").submit();
}

//课程描述显示更多信息
function show_more_msg()
{
    $("#course_description").toggleClass("course_description_none");
    var information = $("#expend_more_information");
    var arrow = $("#arrow");
    var val = information.attr("value");
    if (val == "show_more") {
        $("#expend_more_information").text("收起描述信息");
        information.attr("value", "hide_more");
        arrow.attr("src", "/images/jiantouup.jpg")
    }
    else {
        $("#expend_more_information").text("展开更多信息");
        information.attr("value", "show_more");
        arrow.attr("src", "/images/jiantou.jpg")
    }
}
//作业描述显示更多信息
function news_show_more_des(id)
{
  $('#news_description_' + id).toggleClass("news_description_none");
    if($("#news_description_" + id).hasClass("news_description_none"))
    {
        $("#news_foot_" + id).html("[收起]");
    }
    else
    {
        $("#news_foot_" + id).html("[展开]");
    }
}
function bid_show_more_des(id)
{
    $("#bid_description_" + id).toggleClass("news_description_none");
    if($("#bid_description_" + id).hasClass("news_description_none"))
    {
        $("#bid_show_more_des_button" + id).html("[收起]");
    }
    else
    {
        $("#bid_show_more_des_button" + id).html("[展开]");
    }
}

//课程作业结束时间倒计时
function show_bid_dead_line(year,month,day,divname)
{
    var now = new Date();
    var endDate = new Date(year, month-1, day);
    var leftTime=endDate.getTime()-now.getTime();
    var leftsecond = parseInt(leftTime/1000);
    var day1=Math.floor(leftsecond/(60*60*24));
    var hour=Math.floor((leftsecond-day1*24*60*60)/3600);
    var minute=Math.floor((leftsecond-day1*24*60*60-hour*3600)/60);
    var second=Math.floor(leftsecond-day1*24*60*60-hour*3600-minute*60);
    $("#"+divname).html("<form name='formnow' class='fr'>"
    + "<input class='c_orange' type='text' style='border:0;' size='1' value='"+day1+"' > 天"
    + "<input class='c_orange' type='text' style='border:0;' size='1' value='"+hour+"' > 小时"
    + "<input class='c_orange' type='text' style='border:0;' size='1' value='"+minute+"' > 分"
    + "<input class='c_orange' type='text' style='border:0;' size='1' value='"+second+"' > 秒"
    + "</form>"
    + "<p class='fr'>作品提交还剩：</p>");
}


//处理迟交、缺评扣分
function check_late_penalty(id)
{
    var obj = $("#" + id);
    var regex = /^\d+$/;
    if(regex.test(obj.val()))
    {
        if(obj.val() > 50)
        {
            obj.val("50");
        }
    }
    else
    {
        obj.val("");
    }
}

//验证匿评数量
//function regex_evaluation_num()
//{
//    if($("#evaluation_num").length == 0){ return true;}
//    var evaluation_num = $.trim($("#evaluation_num").val());
//    var regex = /^\d+$/;
//    if(evaluation_num=="")
//    {
//        $("#evaluation_num_notice").html("匿评分配数量不能为空");
//        $("#evaluation_num_notice").removeClass("c_red").addClass("c_red");
//        return false;
//    }
//    else if(regex.test(evaluation_num))
//    {
//        if(evaluation_num > 0)
//        {
//            $("#evaluation_num_notice").html("每个学生将收到<span class='c_red'>&nbsp;"+ parseInt(evaluation_num) + "&nbsp;</span>份待匿评作品");
//            $("#evaluation_num_notice").removeClass("c_red");
//            return true;
//        }
//        else
//        {
//            $("#evaluation_num_notice").html("匿评分配数量必须为大于0");
//            $("#evaluation_num_notice").removeClass("c_red").addClass("c_red");
//            return false;
//        }
//    }
//    else
//    {
//        $("#evaluation_num_notice").html("匿评分配数量只能为数字");
//        $("#evaluation_num_notice").removeClass("c_red").addClass("c_red");
//        return false;
//    }
//}

//点击是否开启匿评单选框效果
$(function(){
    $("#absence_penalty").change(function(){
        $("#absence_penalty_notice").html("&nbsp;"+ $("#absence_penalty").val() +"&nbsp;");
    });
});

//生成select
function build_selector(max_num){
    var html = "<select class='markPercentage' id='ta_proportion' name='ta_proportion'>";
    for(var i = 0; i <= max_num; i += 10){
        if( i == max_num){
            html += "<option value='" + parseFloat(i)/100 + "' selected='selected'>" + i + "%</option>";
        }else{
            html += "<option value='" + parseFloat(i)/100 + "'>" + i + "%</option>";
        }
    }
    html += "</select>";
    return html;
}

//提交匿评参数设置
function submit_set_evaluation_attr(end_time){
    if(!regex_evaluation_start(end_time)){
        $("#evaluation_start_time").focus();
    }
    else if(!regex_evaluation_end()){
        $("#evaluation_end_time").focus();
    }
    else if(!regex_evaluation_num()){
        $("#evaluation_num").focus();
    }
    else{
        $('#popbox02 form').submit();
    }
}

//验证匿评开启时间：大于截止时间,或者为空
function regex_evaluation_start(end_time){
    var evaluation_start = $.trim($("#evaluation_start_time").val());
    if(evaluation_start == ""){
        $("#homework_evaluation_start_time").text("开启匿评日期不能为空");
        return false;
    }
    var end_time = new Date(end_time);
    var evaluation_start_time = new Date(evaluation_start);
    if(evaluation_start_time > end_time){
        $("#homework_evaluation_start_time").text("");
        return true;
    }else{
        $("#homework_evaluation_start_time").text("开启匿评日期必须大于截止日期");
        return false;
    }
}

//验证匿评结束时间：大于匿评开启时间,或者为空。当匿评开启时间为空时，匿评结束时间必须为空
function regex_evaluation_end(){
    var evaluation_start = $.trim($("#evaluation_start_time").val());
    var evaluation_end = $.trim($("#evaluation_end_time").val());
    if(evaluation_end == ""){
        $("#homework_evaluation_end_time").text("关闭匿评日期不能为空");
        return true;
    }
    var evaluation_start_time = new Date(evaluation_start);
    var evaluation_end_time = new Date(evaluation_end);
    if(evaluation_end_time >= evaluation_start_time){
        $("#homework_evaluation_end_time").text("");
        return true;
    }else{
        $("#homework_evaluation_end_time").text("关闭匿评日期不能小于开启匿评日期");
        return false;
    }
}

//验证匿评数量
function regex_evaluation_num(){
    var evaluation_num = $.trim($("#evaluation_num").val());
    var regex = /^\d+$/;
    if(evaluation_num==""){
        $("#evaluation_num_notice").text("匿评人数不能为空");
        return false;
    }
    else if(regex.test(evaluation_num)){
        if(evaluation_num > 0){
            $("#evaluation_num_notice").html("");
            return true;
        }
        else{
            $("#evaluation_num_notice").text("匿评人数必须为大于0");
            return false;
        }
    }
    else{
        $("#evaluation_num_notice").text("匿评人数只能为数字");
        return false;
    }
}

//老师提交 新建/修改 作业
function submit_homework(id){
    if(!regex_homework_name()){
        $("#homework_name").focus();
    }
    else if(!regex_homework_end_time()){
        $("#homework_end_time").focus();
    }
    else if(!regex_homework_end_publish_time()){
        $("#homework_end_time").focus();
    }
    else if(!regex_course_id()){
        $("#course_id").focus();
    }
    else{
        homework_description_editor.sync();
        $("#"+id).submit();
    }
}

//验证新建作业的名字
function regex_homework_name()
{
    var name = $.trim($("#homework_name").val());

    if(name=="")
    {
        $("#homework_name_span").text("名称不能为空");
        return false;
    }
    else
    {
        $("#homework_name_span").text("");
        return true;
    }
}
//验证发布时间不能大于截止时间
function regex_homework_end_publish_time()
{
    var myDate = new Date();
    if($.trim($("#homework_publish_time").val()) == "")
    {
        $("#homework_publish_time").val(formate_date(myDate));
    }
    var publish_time = Date.parse($("#homework_publish_time").val());
    var end_time = Date.parse($("#homework_end_time").val());
    if(end_time < publish_time)
    {
        $("#homework_end_time_span").text("截止日期不能小于发布日期");
        return false;
    }
    else
    {
        $("#homework_end_time_span").text("");
        return true;
    }
}

//验证截止时间
function regex_homework_end_time()
{
    var name = $.trim($("#homework_end_time").val());
    if(name=="")
    {
        $("#homework_end_time_span").text("截止时间不能为空");
        return false;
    }
    else
    {
        $("#homework_end_time_span").text("");
        return true;
    }
}

function formate_date(date){
    var str = "";
    var year = date.getFullYear();
    var month = date.getMonth() + 1;
    var day = date.getDate();
    if(month < 10) {
        month = '0' + month;
    }
    if(day < 10) {
        day = '0' + day;
    }
    str = year + '-' + month + '-' + day;
    return str;
}

//验证发送到课程
function regex_course_id(){
    var course_id = $("#course_id").val();
    if(course_id == -1)
    {
        $("#homework_course_id_span").text("发布课程不能为空");
        return false;
    }
    else
    {
        $("#homework_course_id_span").text("");
        return true;
    }
}

function regexHomeworkCommonName()
{
    var name = $.trim($("#homework_attach_name").val());

    if(name=="")
    {
        $("#homework_attach_name_span").text("作品名称不能为空");
        $("#homework_attach_name_span").css('color','#ff0000');
        return false;
    }
    else
    {
        $("#homework_attach_name_span").text("填写正确");
        $("#homework_attach_name_span").css('color','#008000');
        return true;
    }
}
function regexHomeworkCommonDescription()
{
    var name = $.trim($("#homework_attach_description").val());

    if(name=="")
    {
        $("#homework_attach_description_span").text("作品描述不能为空");
        $("#homework_attach_description_span").css('color','#ff0000');
        return false;
    }
    else
    {
        $("#homework_attach_description_span").text("填写正确");
        $("#homework_attach_description_span").css('color','#008000');
        return true;
    }
}

function submit_homework_form(){if(regexHomeworkCommonName()&&regexHomeworkCommonDescription()){$('#new_homework_attach').submit();}}

//增加测试结果
function add_programing_test(obj) {
    var now = new Date().getTime();
    obj.after("<div><li><label class='label02'>&nbsp;测试输入：&nbsp;</label><input type='text' class='fl h26 w190 mb10' name='input[" + now +"]'' />" +
        "</li><li ><label class='fl f14 ml10'>&nbsp;输出：&nbsp;</label><input type='text' class='fl h26 w190  mb10' name='output[" + now +"]' />" +
        "</li><li><a class='icon_add ml10' href='javascript:void(0);' title='添加测试' onclick='add_programing_test($(this).parent().parent())'></a>" +
        "<a class='icon_remove' href='javascript:void(0);' title='删除测试' onclick='remove_programing_test($(this).parent().parent())'></a>" +
        "<a class='blue_btn fl ml5 mt1 programing_test' onclick='programing_test("+ now +")' id='test_send_" + now + "'>测试</a>" +
        "<input type='hidden'  id='test_result_" + now +"' name='result[" + now +"]'/>" +
        "</li><div class='cl'></div></div>");
}
//删除测试结果
function remove_programing_test(obj) {
    if(obj.siblings("div").length == 0){
        alert("至少需要一组测试");
    }
    else{
        obj.remove();
    }
}

function show_window (id1,id2,top,left) {
    $('#'+ id1).css('top',top);
    $('#'+ id1).css('left',left);
    $('#'+ id1).css('display','block');
    $('#' + id2).css('display','block');
}

function close_window(id1,id2){
    $('#' + id1).css('display','none');
    $('#' + id2).css('display','none');
}

//隐藏提示狂
function hidden_atert_form(cur_page,cur_type)
{
    hideModal($("#popbox"));
}

//当课程描述长度小于112px时，不显示更多按钮
$(function(){
    if($("#course_description_content").height()>400)
    {
        $("#lg-foot").show();
    }
});

//将右侧的最小高度设置成左侧高度，美化界面
// firefox pre标签换行
$(document).ready(function () {
    $("#RSide").css("min-height",$("#LSide").height()-30);
    var userAgent = navigator.userAgent.toLowerCase();
    var browser = {
        version: (userAgent.match(/.+(?:rv|it|ra|ie)[/: ]([d.]+)/) || [])[1],
        safari: /webkit/.test(userAgent),
        opera: /opera/.test(userAgent),
        msie: /msie/.test(userAgent) && !/opera/.test(userAgent),
        mozilla: /mozilla/.test(userAgent) && !/(compatible|webkit)/.test(userAgent)
    };
    if (browser.mozilla || browser.opera){
        $("pre").addClass("break_word_firefox");
    }
    else{
        $("pre").addClass("break_word");
    }
});

// 日历选择日期后关闭
function regexDeadLine()
{
    ('#ui-datepicker-div').hide();
}

//新建、修改课程明码显示
$(function(){
    $("#psw_btn").click(function() {
        if($("#new_course_course_password").length > 0) {
            alert("密码: "+$("#new_course_course_password").val());
        } else if($("#edit_course_course_password").length > 0){
            alert("密码: "+$("#edit_course_course_password").val());
        }
    });
});

//查找TAG资源
var clickFunction = null; //单击事件函数
var isdb = false; //是否双击
function search_tag_attachment(url,tag_name,q,course_id,sort)
{
    //alert("111");
    //clearTimeout(clickFunction);
    clickFunction = setTimeout(function() {
        search_func()
    }, 500);
    function search_func(){
        if(isdb!= false ) return;
        $.get(
            url,
            {
                tag_name: tag_name,
                q: q,
                course_id:course_id
            },
            function (data) {

            }
        );
    }

}

// 课程讨论区
function showhelpAndScrollToMessage(id, id1, count) {
    $('#' + id).toggle();
    if(cookieget("repositories_visiable") == "true")
    {
        cookiesave("repositories_visiable", false,'','','');
    }
    else
    {
        cookiesave("repositories_visiable", true,'','','');
    }
    var information = $(id1);
    var val = information.attr("value");
    if(val=="show_help")
    {
        $(id1).text("收起回复(" + count + ")" );
        information.attr("value", "hide_help");
    }
    else
    {
        $(id1).text("展开回复(" + count + ")");
        information.attr("value", "show_help");
    }
}
function show_more_reply(contentid, id2, id3) {
    $(contentid).toggleClass("course_description_none");
    var information = $(id2);
    var arrow = $(id3);
    var val = information.attr("value");
    if (val == "show_more") {
        $(id2).text("[收起]");
        information.attr("value", "hide_more");
        arrow.attr("src", "/images/jiantouup.jpg")
    }
    else {
        $(id2).text("[展开]");
        information.attr("value", "show_more");
        arrow.attr("src", "/images/jiantou.jpg")
    }
}

///////////////////////////////////////////////
//学生作品
function show_project()
{
    $("#about_project").slideToggle();
}

//验证作品名称
function regexStudentWorkName()
{
    var name = $.trim($("#student_work_name").val());

    if(name=="")
    {
        $("#student_work_name_span").text("作品名称不能为空");
        return false;
    }
    else
    {
        $("#student_work_name_span").text("");
        return true;
    }
}

function regexStudentWorkDescription()
{
    var name = $.trim($("#student_work_description").val());

    if(name=="")
    {
        $("#student_work_description_textarea").text("作品描述不能为空");
        return false;
    }
    else
    {
        $("#student_work_description_textarea").text("");
        return true;
    }
}

function regexStudentWorkMember(min, max) {
    var members = $.trim($("#group_member_ids").val()).split(',');
    if ( min <= members.length  && members.length <= max ){
        $("#student_work_group_textarea").text("");
        return true;
    } else {
        $("#student_work_group_textarea").text("合作成员人数应为:"+min+"-"+max+"人");
        return false;
    }
}

//提交新建作品
function new_student_work()
{
    if(regexStudentWorkName()&&regexStudentWorkDescription())
    {
        if($("#group_member_ids").length > 0) {
            if(regexStudentWorkMember(parseInt($.trim($("#min_num_member").html())),parseInt($.trim($("#max_num_member").html())))) {
                $("#new_student_work").submit();
                $("#ajax-indicator").hide();
            }
        } else {
            $("#new_student_work").submit();
            $("#ajax-indicator").hide();
        }
    }
}

function edit_student_work(id)
{
    if(regexStudentWorkName()&&regexStudentWorkDescription())
    {
        $("#edit_student_work_" + id).submit();
        $("#ajax-indicator").hide();
    }
}

//

//滑动打分
$.fn.peSlider = function(settings){
    //configurable options (none so far)
    var o = $.extend({},settings);
    if( !$('body').is('[role]') ){ $('body').attr('role','application'); }
    return $(this).each(function(){
        var thisLabel = $('label[for=' + $(this).attr('id') + ']').attr('id', $(this).attr('id') + '-label').attr('id');
        var thisUnits = $(this).attr('data-units') || '';
        var slider = $('<div></div>');
        if( $(this).is('input') ){
            var input = $(this);
            var thisUnits = input.attr('data-units');
            var friendlyVal = input.val() + ' ' + thisUnits;
            var sliderOptions = $.extend(o,{
                min: parseFloat(input.attr('min')),
                max: parseFloat(input.attr('max')),
                value: parseFloat(input.val())
            });
            if(parseFloat(input.val()) == -1){
                input.css("color", "#fff");
                input.next().next().html("未评分");
                input.next().next().show();
            } else{
                input.css("color", "#000");
                input.next().next().hide();
            }
            slider
                .insertBefore(input)
                .slider(sliderOptions)
                .bind('slide', function(e, ui){
                    if(ui.value == -1){
                        input.css("color", "#fff");
                        input.next().next().html("未评分");
                        input.next().next().show();
                    } else {
                        input.css("color", "#000");
                        input.next().next().hide();
                    }
                    input.val(ui.value);
                    friendlyVal = input.val() + ' ' + thisUnits;
                    slider.find('a').attr({
                        'aria-valuenow': ui.value,
                        'aria-valuetext': friendlyVal
                    });
                })
                .find('a')
                .attr({
                    'role': 'slider',
                    'aria-valuemin': input.attr('min'),
                    'aria-valuemax': input.attr('max'),
                    'aria-valuenow': input.val(),
                    'aria-valuetext': friendlyVal,
                    'aria-labelledby': thisLabel
                });
            input
                .keyup(function(){
                    var inVal = parseFloat(input.val());
                    if( !isNaN(inVal) ){
                        if(inVal == -1){
                            input.css("color", "#fff");
                            input.next().next().html("未评分");
                            input.next().next().show();
                        } else {
                            input.css("color", "#000");
                            input.next().next().hide();
                        }
                        slider.slider('value', inVal);
                        input.val(slider.slider('value'));
                    }
                })
                .change(function(){
                    var inVal = parseFloat(input.val());
                    if( !isNaN(inVal) ){
                        if(inVal == -1){
                            input.css("color", "#fff");
                            input.next().next().html("未评分");
                            input.next().next().show();
                        } else {
                            input.css("color", "#000");
                            input.next().next().hide();
                        }
                        slider.slider('value', inVal);
                        input.val(slider.slider('value'));
                    }
                })
                .blur(function(){
                    var inVal = parseFloat(input.val());
                    if( isNaN(inVal) ){
                        input.val(-1);
                    }
                    if(input.val() == -1){
                        input.css("color", "#fff");
                        input.next().next().html("未评分");
                        input.next().next().show();
                    } else {
                        input.css("color", "#000");
                        input.next().next().hide();
                    }
                });
            if( !settings.step ){
                var step = Math.round( parseFloat(input.attr('max')) / slider.width());
                if(step > 1){ slider.slider('option','step',step); }
            }
        }
    });
};

//返回顶部
$(function(){goTopEx();});

var Sys = {};
var ua = navigator.userAgent.toLowerCase();
var s;
(s = ua.match(/msie ([\d.]+)/)) ? Sys.ie = s[1] :
    (s = ua.match(/firefox\/([\d.]+)/)) ? Sys.firefox = s[1] :
        (s = ua.match(/chrome\/([\d.]+)/)) ? Sys.chrome = s[1] :
            (s = ua.match(/opera.([\d.]+)/)) ? Sys.opera = s[1] :
                (s = ua.match(/version\/([\d.]+).*safari/)) ? Sys.safari = s[1] : 0;

function goTopEx() {
    var obj = document.getElementById("goTopBtn");
    if(obj != null)
    {
        var scrollTop = window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0;
        function getScrollTop() {
            var xsun = document.documentElement.scrollTop;
            if (Sys.chrome) {
                xsun=document.body.scrollTop;
            }
            return xsun;
        }
        function setScrollTop(value) {
            if (Sys.chrome) {
                document.body.scrollTop = value;
            }
            else {
                document.documentElement.scrollTop = value;
            }
        }
        window.onscroll = function () { getScrollTop() > 0 ? obj.style.display = "" : obj.style.display = "none"; };
        obj.onclick = function () {
            var goTop = setInterval(scrollMove, 10);
            function scrollMove() {
                setScrollTop(getScrollTop() / 1.1);
                if (getScrollTop() < 1) clearInterval(goTop);
            }
        }
    }
}

$(function(){
    //匿评评分提示
    $(".student_score_info").live("mouseover",function(){
        $(this).find("div").show();
    });
    $(".student_score_info").live("mouseout",function(){
        $(this).find("div").hide();
    });
    //最终成绩提示
    $(".student_final_scor_info").live("mouseover",function(){
        $(this).find("div").show();
    });
    $(".student_final_scor_info").live("mouseout",function(){
        $(this).find("div").hide();
    });

    $("#about_project label").eq(1).remove();

    ////附件下载提示
    //$(".zip_download_alert").bind("mouseover",function(){
    //    $(this).next("div").show();
    //});
    //$(".zip_download_alert").bind("mouseout",function(){
    //    $(this).next("div").hide();
    //});
});

//匿评弹框取消按钮
function clickCanel(){hideModal("#popbox02");}
//匿评弹框确定按钮
function clickOK(path)
{
    clickCanel();
    $.ajax({
        type: "GET",
        url: path,
        data: 'text',
        success: function (data) {
        }
    });
}
//关闭引入资源弹框
function hideResource(){
    $('#ajax-modal').parent().removeClass("popbox").removeClass("referenceResourcesPopup");
    hideModal();
}
//查询
function SearchByName(url,event)
{
    var keycode = (event.keyCode ? event.keyCode : event.which);
    if(keycode == '13'){
        $.get(
            url,
            {
                name : $("#course_student_name").val(),
                group : $("#student_work_in_group").val()
            },
            function (data) {
            }
        );
    }
}
function SearchByName_1(url)
{
      //alert($("#student_work_in_group").val());
    $.get(
        url,
        {
            name : $("#course_student_name").val(),
            group : $("#student_work_in_group").val()
        },
        function (data) {
        }
    );
}

$(function(){
    $("#student_work_in_group").live("change",function(){
        $("#search_in_student_work").click();
    });
});

//新建作业临时弹框
function new_homework_alert(){
    alert("您好！课程内直接发布作业的功能正在改进中，请直接点击\n顶部导航栏的“作业”向本课程发送作业。谢谢！如有问\n题，可参见帮助中心。");
}

function show_student_work(url){
    $.get(
        url,
        {

        },
        function (data) {
        }
    );
}

/////////////////////////////////////////////////////////////////////////////////////////

var autoTextarea2 = function (elem,elem2, extra, maxHeight) {
    extra = extra || 0;
    var isFirefox = !!document.getBoxObjectFor || 'mozInnerScreenX' in window,
        isOpera = !!window.opera && !!window.opera.toString().indexOf('Opera'),
        addEvent = function (element, type, callback) {
            element.addEventListener ?
                element.addEventListener(type, callback, false) :
                element.attachEvent('on' + type, callback);
        },
        getFirstStyle = elem.currentStyle ? function (name) {
            var val = elem.currentStyle[name];

            if (name === 'height' && val.search(/px/i) !== 1) {
                var rect = elem.getBoundingClientRect();
                return rect.bottom - rect.top -
                    parseFloat(getFirstStyle('paddingTop')) -
                    parseFloat(getFirstStyle('paddingBottom')) + 'px';
            };

            return val;
        } : function (name) {
            return getComputedStyle(elem, null)[name];
        },
        minHeight = parseFloat(getFirstStyle('height'))

    elem.style.resize = 'none';
    elem2.style.resize = 'none';
    var change = function () {
        var scrollTop, height,
            padding = 0,
            style = elem.style,
            style2 = elem2.style;


        if (elem._length === elem.value.length) return;
        elem._length = elem.value.length;
        elem2._length = elem._length;
        if (!isFirefox && !isOpera) {
            padding = parseInt(getFirstStyle('paddingTop')) + parseInt(getFirstStyle('paddingBottom'));
        };
        scrollTop = document.body.scrollTop || document.documentElement.scrollTop;

        elem.style.height = minHeight + 'px';
        elem2.style.height = minHeight + 'px';
        if (elem.scrollHeight > minHeight) {
            if (maxHeight && elem.scrollHeight > maxHeight) {
                height = maxHeight - padding;
                style.overflowY = 'auto';
                style2.overflowY = 'auto';
            } else {
                height = elem.scrollHeight - padding;
                style.overflowY = 'hidden';
                style2.overflowY = 'hidden';
            };
            style.height = height + extra + 'px';
            style2.height = height + extra + 'px';
            scrollTop += parseInt(style.height) - elem.currHeight;
            document.body.scrollTop = scrollTop;
            document.documentElement.scrollTop = scrollTop;
            elem.currHeight = parseInt(style.height);
        };
        if (elem2.scrollHeight > minHeight) {
            if (maxHeight && elem2.scrollHeight > maxHeight) {
                height = maxHeight - padding;
                style.overflowY = 'auto';
                style2.overflowY = 'auto';
            } else {
                height = elem2.scrollHeight - padding;
                style.overflowY = 'hidden';
                style2.overflowY = 'hidden';
            };
            style.height = height + extra + 'px';
            style2.height = height + extra + 'px';
            scrollTop += parseInt(style2.height) - elem2.currHeight;
            document.body.scrollTop = scrollTop;
            document.documentElement.scrollTop = scrollTop;
            elem2.currHeight = parseInt(style2.height);
        };
    };

    addEvent(elem, 'propertychange', change);
    addEvent(elem, 'input', change);
    addEvent(elem, 'focus', change);
    addEvent(elem2, 'propertychange', change);
    addEvent(elem2, 'input', change);
    addEvent(elem2, 'focus', change);
    change();
};

//课程大纲选择请求,第二个参数是可选的，判断当前页面是大纲显示页面还是 课程首页
function course_outline(id){
    $.get(
        ' /courses/'+id+'/course_outline'+"?is_in_show_outline_page="+(arguments[1] ? arguments[1] : 'N')
    )
}

//取消课程组织关联
function cancel_org_course_relation(id, courseId){
    if(confirm("确定取消关联吗？") == false) return;
    $.ajax({
        url:"/org_courses/" + id + "?course_id=" + courseId,
        type: "delete",
        success:function(data){
            $.ajax({
                url: "/courses/" + courseId + "/search_public_orgs_not_in_course?hint_flag=true",
                type:'get'
            });
        }
    });
}
//$(function(){
//    $('#course_outline_search').on('input',function(){
//        alert('<%= @course.id%>')
//    })
//})

//项目点击展开
function expand_tools_expand(content) {
    if (content == "invit") {
        $("#expand_tools_expand_invit").toggleClass("currentDd").siblings(".subNav").removeClass("currentDd");
        $("#expand_tools_expand_invit").toggleClass("currentDt").siblings(".subNav").removeClass("currentDt");
        $("#expand_tools_expand_invit").next(".navContent").slideToggle(500).siblings(".navContent").slideUp(500);
    }
    else {
//        $("#expand_tools_expand").toggleClass("currentDd").siblings(".subNav").removeClass("currentDd");
//        $("#expand_tools_expand").toggleClass("currentDt").siblings(".subNav").removeClass("currentDt");
//        $("#expand_tools_expand").next(".navContent").slideToggle(500).siblings(".navContent").slideUp(500);
        $("#navContent").toggle(500);
    }

    // 修改数字控制速度， slideUp(500)控制卷起速度
}

//通过cookie存储伸开形式
$(function(){
    var personalized_expand_key = "personalized_expand";
    function personalized_init(){
        var personalized_map = cookieget(personalized_expand_key);
        if(personalized_map!=false){
            personalized_map = JSON.parse(personalized_map);
            $("*[nhtype='toggle4cookiecourse']").each(function(){
                var personalized_id=$(this).data('id');
                var val = personalized_map[personalized_id];
                if(val!=undefined && val!=$(this).data('val')){
                    personalized_click($(this),0);
                }
            });
        }
    }
    function personalized_click(obj,timeout){
        var target = $(obj.data('target'));
        var oldval = obj.data('val');
        var val='';
        if(oldval=='expand'){val='retract';}else{val='expand';}
        obj.data('val',val);
        var personalized_map = cookieget(personalized_expand_key);
        if(personalized_map == false){
            personalized_map={};
        }else{
            personalized_map = JSON.parse(personalized_map);
        }
        var personalized_id=obj.data('id');
        personalized_map[personalized_id]=val;
        cookiesave(personalized_expand_key,JSON.stringify(personalized_map));
        target.toggle(timeout);
    }
    $("*[nhtype='toggle4cookiecourse']").on('click',function(){
        personalized_click($(this),500);
    });

    personalized_init();
});
function submit_course_feedback() {
    var flag = false;
    if(flag == false){
        $("#course_feedback_new").submit();
        var flag = true
    }
}

function show_more_tool(){
    $('#navContentCourse').css('display', 'block');
}