//显示更多的班级
function show_more_course(url){
    $.get(
        url,
        { page: $("#course_page_num").val() },
        function (data) {
        }
    );
}

function regex_sylla_description() {
    syllabus_description_editor.sync();
    var name = syllabus_description_editor.html();
    if (name.length == 0) {
        $("#description_notice_span").text("描述不能为空");
        $("#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 submit_syllabus() {
    if (regex_sylla_description()) {
        $("#syllabus-form").submit();
    }
}

//编辑英文名称
function show_edit_eng_name() {
    $("#syllabus_eng_name_show").hide();
    $("#syllabus_eng_name_edit").show();
    $("#syllabus_eng_name_edit").focus();
}

//编辑英文名称之后提交
function edit_syllabus_eng_name(url){
    $.get(
        url,
        { eng_name: $("#syllabus_eng_name_edit").val() },
        function (data) {

        }
    );
}

//展开所有属性
function toggle_all_syllabus_attr(){
    var btn = $("#show_all_syllabus_attr");
    var target = $("#all_syllabus_attr li");
    var none = $("#all_syllabus_attr li.none_attr");
    if(btn.data('init')=='0'){
        btn.data('init',1);
        btn.removeClass('homepageLeftMenuMoreIcon');
        btn.addClass('homepageLeftMenuHideIcon');
        target.show();
    }else{
        btn.data('init',0);
        btn.addClass('homepageLeftMenuMoreIcon');
        btn.removeClass('homepageLeftMenuHideIcon');
        none.hide();
    }
}

function update_syllabus_info(){
    if(regex_syllabus_credit('credit') && regex_syllabus_credit('hours') && regex_syllabus_credit('theory_hours') && regex_syllabus_credit('practice_hours')) {
        $("#submit_edit_info").parent().submit();
    }
}

function regex_syllabus_credit(str){
    var num = $.trim($("#syllabus_"+str+"_input").val());
    var regex = /^\d*$/;
    if(num.length > 0)
    {
        if (regex.test(num)) {
            if(parseInt(num) > 0)
            {
                $("#syllabus_"+str+"_notice").hide();
                return true;
            } else
            {
                $("#syllabus_"+str+"_notice").show();
                $("#syllabus_"+str+"_input").focus();
                return false;
            }
        } else {
            $("#syllabus_"+str+"_notice").show();
            $("#syllabus_"+str+"_input").focus();
            return false;
        }
    } else {
        return true;
    }

}