var xmlhttp = false;
try {
    xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
    try {
        xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
    } catch (E) {
        xmlhttp = false;
    }
}
if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
    xmlhttp = new XMLHttpRequest();
}

function vymazatPolozku(){
    var x = confirm('Opravdu chcete tuto polo\u017eku vymazat?');
    return x;
}

function zobrazRegistraci(query) {
    objContentPage = document.getElementById('prihlaseni');
    var queryString = query;
    
    xmlhttp.open("GET", queryString);
    xmlhttp.onreadystatechange = function() {
        if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
            objContentPage.innerHTML = xmlhttp.responseText;
        }
    }
    xmlhttp.send(null);
}

function zobrazPrihlaseni(query) {
    objContentPage = document.getElementById('prihlaseni');
    if(query == 'find') {
        var queryString = '../../../templates/prihlaseni_form.php';
    } else {
        var queryString = 'templates/prihlaseni_form.php';
    }

    xmlhttp.open("GET", queryString);
    xmlhttp.onreadystatechange = function() {
        if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
            objContentPage.innerHTML = xmlhttp.responseText;
        }
    }
    xmlhttp.send(null);
}

function showAllCategories() {
    objContentPage = document.getElementById('kategorie');
    var queryString = "templates/kategorie_all.php";
    xmlhttp.open("GET", queryString);
    xmlhttp.onreadystatechange = function() {
        if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
            objContentPage.innerHTML = xmlhttp.responseText;
        }
    }
    xmlhttp.send(null);
}

function showBasicCategories() {
    objContentPage = document.getElementById('kategorie');
    var queryString = "templates/kategorie_basic.php";
    xmlhttp.open("GET", queryString);
    xmlhttp.onreadystatechange = function() {
        if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
            objContentPage.innerHTML = xmlhttp.responseText;
        }
    }
    xmlhttp.send(null);
}

function changebackground(no) {
    if(no == 1) {
        document.getElementById('type').value = 1;
        document.getElementById('findform').style.background = 'url(\'images/tabpanel2.png\') center no-repeat';
        document.getElementById('prace').style.display = 'none';
        document.getElementById('zivotopisy').style.display = 'block';
        document.getElementById('myAutoComplete3').style.display = 'block';
        document.getElementById('myAutoComplete4').style.display = 'block';
        document.getElementById('myAutoComplete1').style.display = 'none';
        document.getElementById('myAutoComplete2').style.display = 'none';
    } else {
        document.getElementById('type').value = 0;
        document.getElementById('findform').style.background = 'url(\'images/tabpanel1.png\') center no-repeat';
        document.getElementById('prace').style.display = 'block';
        document.getElementById('zivotopisy').style.display = 'none';
        document.getElementById('myAutoComplete4').style.display = 'none';
        document.getElementById('myAutoComplete3').style.display = 'none';
        document.getElementById('myAutoComplete1').style.display = 'block';
        document.getElementById('myAutoComplete2').style.display = 'block';
    }
}

function changebackgroundf(no) {
    if(no == 1) {
        document.getElementById('type').value = 1;
        document.getElementById('findform').style.background = 'url(\'../../../images/tabpanel2find.png\') center no-repeat';
        document.getElementById('prace').style.display = 'none';
        document.getElementById('zivotopisy').style.display = 'block';
        document.getElementById('myAutoComplete3').style.display = 'block';
        document.getElementById('myAutoComplete4').style.display = 'block';
        document.getElementById('myAutoComplete1').style.display = 'none';
        document.getElementById('myAutoComplete2').style.display = 'none';
    } else {
        document.getElementById('type').value = 0;
        document.getElementById('findform').style.background = 'url(\'../../../images/tabpanel1find.png\') center no-repeat';
        document.getElementById('prace').style.display = 'block';
        document.getElementById('zivotopisy').style.display = 'none';
        document.getElementById('myAutoComplete4').style.display = 'none';
        document.getElementById('myAutoComplete3').style.display = 'none';
        document.getElementById('myAutoComplete1').style.display = 'block';
        document.getElementById('myAutoComplete2').style.display = 'block';
    }
}

function showPrihlaseni() {
    if(document.getElementById('prihlaseni').style.display == 'none') {
        document.getElementById('prihlaseni').style.display = 'block';
    } else {
        document.getElementById('prihlaseni').style.display = 'none';
    }
}

function add_titul() {
    document.getElementById('titul').style.display = 'none';
    document.getElementById('titul_add').style.display = 'block';
    document.getElementById('titul_add_span').style.display = 'none';
    document.getElementById('titul_select_span').style.display = 'block';
}

function select_titul() {
    document.getElementById('titul').style.display = 'block';
    document.getElementById('titul_add').style.display = 'none';
    document.getElementById('titul_add_span').style.display = 'block';
    document.getElementById('titul_select_span').style.display = 'none';
}

function add_titulv() {
    document.getElementById('titulv').style.display = 'none';
    document.getElementById('titul_addv').style.display = 'block';
    document.getElementById('titul_add_spanv').style.display = 'none';
    document.getElementById('titul_select_spanv').style.display = 'block';
}

function select_titulv() {
    document.getElementById('titulv').style.display = 'block';
    document.getElementById('titul_addv').style.display = 'none';
    document.getElementById('titul_add_spanv').style.display = 'block';
    document.getElementById('titul_select_spanv').style.display = 'none';
}

function pohovor_otazka(puv_id,nov_id) {
    var puvodni = document.getElementById('q' + puv_id);
    puvodni.style.display = 'none';
    var nova = document.getElementById('q' + nov_id);
    nova.style.display = 'block';
}

function check_ponuka() { 
    var error = '';
    
    if(document.getElementById('zam').value.length < 1) {
        error += "Vypl\u0148te prosím zaměstnavalete. \n";
    }
    if(document.getElementById('adr').value.length < 1) {
        error += "Vypl\u0148te prosím adresu. \n";
    }
    if(document.getElementById('naz').value.length < 1) {
        error += "Vypl\u0148te prosím nazov ponuky. \n";
    }
    if(document.getElementById('email').value.length < 1) {
        error += "Vypl\u0148te prosím email. \n";
    }
    if(document.getElementById('tel').value.length < 1) {
        error += "Vypl\u0148te prosím telefon. \n";
    }
    if(document.getElementById('druh').value == 0) {
        error += "Vypl\u0148te prosím druh pracovného poměru. \n";
    }
    if(document.getElementById('kat').value == 0) {
        error += "Vypl\u0148te prosím kategorie ponuky. \n";
    }
    if(document.getElementById('pod').value == 0) {
        error += "Vypl\u0148te prosím minimální plat. \n";
    }
    if(document.getElementById('pdo').value == 0) {
        error += "Vypl\u0148te prosím maximální plat. \n";
    }
    
    if(error != '') {
        alert(error);
        return false;
    } else {
        return true;
    }
}