function bookmark(){
    if (window.sidebar) {
        window.sidebar.addPanel(title, url, "");
    } else if(window.opera && window.print) {
        var elem = document.createElement('a');
        elem.setAttribute('href',url);
        elem.setAttribute('title',title);
        elem.setAttribute('rel','sidebar');
        elem.click();
    }else if(document.all) {
        window.external.AddFavorite(url, title);
    }else {
        alert("Добавление в Избранное в автоматическом режиме не сработало. :(");
    }
    return false;
  }

function checkemail() {
    var value = document.getElementById('email').value;
    document.getElementById('message').innerHTML="";
    reg = /[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?/;
    if (!value.match(reg)) 
    {        
        document.getElementById('message').innerHTML="<li><span>Пожалуйста, укажите правильный e-mail</span></li>"; 
        return checkform();
    }    
    return checkform();
}

function checkform(){
    var message = document.getElementById('message').innerHTML;
    var name    = document.getElementById('name').value;
    var phone   = document.getElementById('phone').value;
    var res     = ('' == message) ? true : false;
    
    if ('' == phone)
    {
        message = "<li><span>Поле 'Контактный телефон' обязательно к заполнению</span></li>" + message;
        res = false;
    }
    if ('' == name)
    {
        message = "<li><span>Поле 'Ваше имя' обязательно к заполнению</span></li>" + message;
        res = false;
    }
    
    document.getElementById('message').innerHTML=message;
    
    return res;
}

function search_text_on_site(){
    document.location = 'http://youko.ru/poisk-na-sajte/' + urlencode(document.getElementById('search_text').value);
}

function urlencode( str ) {                             
    var histogram = {}, tmp_arr = [];
    var ret = (str+'').toString();
    
    var replacer = function(search, replace, str) {
        var tmp_arr = [];
        tmp_arr = str.split(search);
        return tmp_arr.join(replace);
    };
    
    // The histogram is identical to the one in urldecode.
    histogram["'"]   = '%27';
    histogram['(']   = '%28';
    histogram[')']   = '%29';
    histogram['*']   = '%2A';
    histogram['~']   = '%7E';
    histogram['!']   = '%21';
    histogram['%20'] = '+';
    histogram['\u20AC'] = '%80';
    histogram['\u0081'] = '%81';
    histogram['\u201A'] = '%82';
    histogram['\u0192'] = '%83';
    histogram['\u201E'] = '%84';
    histogram['\u2026'] = '%85';
    histogram['\u2020'] = '%86';
    histogram['\u2021'] = '%87';
    histogram['\u02C6'] = '%88';
    histogram['\u2030'] = '%89';
    histogram['\u0160'] = '%8A';
    histogram['\u2039'] = '%8B';
    histogram['\u0152'] = '%8C';
    histogram['\u008D'] = '%8D';
    histogram['\u017D'] = '%8E';
    histogram['\u008F'] = '%8F';
    histogram['\u0090'] = '%90';
    histogram['\u2018'] = '%91';
    histogram['\u2019'] = '%92';
    histogram['\u201C'] = '%93';
    histogram['\u201D'] = '%94';
    histogram['\u2022'] = '%95';
    histogram['\u2013'] = '%96';
    histogram['\u2014'] = '%97';
    histogram['\u02DC'] = '%98';
    histogram['\u2122'] = '%99';
    histogram['\u0161'] = '%9A';
    histogram['\u203A'] = '%9B';
    histogram['\u0153'] = '%9C';
    histogram['\u009D'] = '%9D';
    histogram['\u017E'] = '%9E';
    histogram['\u0178'] = '%9F';
    
    // Begin with encodeURIComponent, which most resembles PHP's encoding functions
    ret = encodeURIComponent(ret);
    
    for (search in histogram) {
        replace = histogram[search];
        ret = replacer(search, replace, ret) // Custom replace. No regexing
    }
    
    // Uppercase for full PHP compatibility
    return ret.replace(/(\%([a-z0-9]{2}))/g, function(full, m1, m2) {
        return "%"+m2.toUpperCase();
    });
    
    return ret;
}