var langEnglish=false;
var currentCourseName;

function isLangEnglish() {
    if(langEnglish == null || langEnglish == undefined) {
        langEnglish = false;
    }
    return langEnglish;
}

function courseMouseOver(id) {
    document.getElementById('course_row_1_'+id).className = 'showLine';
    document.getElementById('course_row_2_'+id).className = 'showLine';
}
function courseMouseOut(id) {
    if(document.getElementById('course_row_3_'+id).className != 'showPfeil') {
        document.getElementById('course_row_1_'+id).className = '';
        document.getElementById('course_row_2_'+id).className = '';
    }
}
function loadEffect() {
    document.getElementById('courseDetails').style.display='none';
    document.getElementById('courseDetailsAjax').style.display='none';
    document.getElementById('loadcourseDetails').style.display='';
}
function displayAjaxPreview() {
    document.getElementById('loadcourseDetails').style.display='none';
    document.getElementById('courseDetailsAjax').style.display='';
}

function ajaxConditions() {
    callConditions(isLangEnglish() ? 'en' : 'de');
}

function ajaxShowLocalized(lang) {
    var disp_en;
    var disp_de;
    if("en" == lang) {
        disp_en = '';
        disp_de = 'none';
    } else {
        disp_en = 'none';
        disp_de = '';
    }
    document.getElementById('ajax_course_flag_en').style.display = disp_de;
    document.getElementById('ajax_course_flag_de').style.display = disp_en;
    document.getElementById('ajax_course_desc_txt_en').style.display = disp_en;
    document.getElementById('ajax_course_desc_txt_de').style.display = disp_de;
    document.getElementById('ajax_course_execs_txt_en').style.display = disp_en;
    document.getElementById('ajax_course_execs_txt_de').style.display = disp_de;
    document.getElementById('ajax_course_cal_txt_en').style.display = disp_en;
    document.getElementById('ajax_course_cal_txt_de').style.display = disp_de;
    document.getElementById('ajax_course_duration_txt_en').style.display = disp_en;
    document.getElementById('ajax_course_duration_txt_de').style.display = disp_de;
    document.getElementById('ajax_course_cost_txt_en').style.display = disp_en;
    document.getElementById('ajax_course_cost_txt_de').style.display = disp_de;
    document.getElementById('ajax_course_lang_txt_en').style.display = disp_en;
    document.getElementById('ajax_course_lang_txt_de').style.display = disp_de;
    document.getElementById('ajax_course_docu_txt_en').style.display = disp_en;
    document.getElementById('ajax_course_docu_txt_de').style.display = disp_de;
    document.getElementById('ajax_course_lang_en').style.display = disp_en;
    document.getElementById('ajax_course_lang_de').style.display = disp_de;
    document.getElementById('ajax_course_docu_title_en').style.display = disp_en;
    document.getElementById('ajax_course_docu_title_de').style.display = disp_de;
    document.getElementById('ajax_course_duration_days_en').style.display = disp_en;
    document.getElementById('ajax_course_duration_days_de').style.display = disp_de;
    document.getElementById('ajax_course_execs_links_en').style.display = disp_en;
    document.getElementById('ajax_course_execs_links_de').style.display = disp_de;
}

function ajaxSwitchLanguage() {
    langEnglish = !langEnglish;
    ajaxShowLocalized(isLangEnglish()?'en':'de');
}