function CheckSearchForm() {
    if ($("#search-query").attr('value').length < 4) {
        alert('Пожалуйста, задайте условие поиска');
        return false;
    }
    return true;
}

function ChangeBookmark(obj) {

    if (obj.id == 'bookmark1') {
        document.getElementById('bookmark1').className = 'current';
        document.getElementById('bookmark2').className = 'next';
        document.getElementById('bookmark1-page').style.display = 'block';
        document.getElementById('bookmark2-page').style.display = 'none';
    }
    else {
        document.getElementById('bookmark1').className = 'next';
        document.getElementById('bookmark2').className = 'current';
        document.getElementById('bookmark1-page').style.display = 'none';
        document.getElementById('bookmark2-page').style.display = 'block';
    }
}

function SubmitNewsForm() {
    
    var datefrom = $("#datefrom option:selected").val();
    var dateto = $("#dateto option:selected").val();
    var url = window.location + '';
    
    url = url.replace(/([0-9]{2}.[0-9]{4}\/)+/, '');
    
    window.location.href = url + datefrom + '/' + dateto + '/';
}