var groups;

/// Util functions

// Shorthand for String.fromCharCode
function gc(code)
{
    return String.fromCharCode(code);
}

// Strip whitespace (or other characters) from the beginning and end of a string
function trim(str)
{
    return str.replace(/^[\s\xA0]+/, '').replace(/[\s\xA0]+$/, '').replace(/ +$/, '').replace(/^ +/, '');
}

function escape_html(str)
{
    return str.replace(/&/g, '&amp;').replace(/</g, '&lt;');
}

// Check element in array or object
function contains(object, element)
{
    for (var i in object) {
        if (object[i] == element) {
            return true;
        }
    }
    return false;
}

function write_error(id, error)
{
    document.getElementById(id).innerHTML = error;
}

function check_search_set(a, query, text)
{
    a.href = query + encodeURIComponent(text) + '&charset=UTF-8';

    if (text == '') {
        a.className = 'disabled';
    }

    return true;
}

// Check query in blogs | news
function check_search_url(a)
{
    var win = window.open(a.href, 'search');

    return false;
}


var enter_submit = false;

function check_url(s)
{
    s = s.replace(/^\s+/, '').replace(/\s+$/, '').replace(/^http:\/\//i, "\xC8");

    if (s.indexOf('/') == -1) {
        s += '/';
    }

    s = s.replace("\xC8", 'http://');

    if (s.indexOf('://') == -1) {
        s = 'http://' + s;
    }

    return s;
}

var user_counter = 0;

function select_button_enabler(select, button)
{
    document.getElementById(button).disabled = (document.getElementById(select).selectedIndex == -1);
}

function input_button_enabler(input, button)
{
    document.getElementById(button).disabled = (trim(document.getElementById(input).value)=='');
}

// Get event target (x-browser version)
function get_target(evt)
{
    if (!evt) {
        evt = window.event;
    }

    if (evt.target) { // Mozilla
        return evt.target;
    }

    if (evt.srcElement) { // IE
        return evt.srcElement;
    }

    return null;
}

function listener_input(evt)
{
    var input = get_target(evt);
    if (input) {
        input_button_enabler(input.id, input.getAttribute('checksubmit'));
    }
    return true;
}

function filter_enter(evt)
{
    var input = get_target(evt);
    if (input) {
        if (!evt) {
            evt = window.event;
        }
        if (evt.keyCode == 13) {
            enter_submit = input.getAttribute('checksubmit');
        }
    }
}

function listener_select(evt)
{
    var input = get_target(evt);
    if (input) {
        select_button_enabler(input.id, input.getAttribute('checksubmit'));
    }
    return true;
}

function confirm_delete(select, what)
{
    var length = 0;
    for (var i = 0; i < select.length; i++) {
        length += select.options[i].selected ? 1 : 0;
    }
    var ret = false;
    if (length > 1) {
        ret = confirm('Удалить ' + y5.Strings.plural(length, ['RSS-поток', 'RSS-потока', 'RSS-потоков']) + '?')
    } else if (length == 1) {
        var title = select.options[select.selectedIndex].text;
        ret = confirm('Удалить ' + (what ? what + ' ' : '') + gc(171) + title + gc(187) + '?');
    }
    return ret;
}


function joinList(id)
{
    var selected = [];
    var thisFrom = document.getElementById(id);

    for (var i = thisFrom.options.length - 1; i >= 0; i--) {
        selected[selected.length] = thisFrom.options[i].value;
    }

    return selected.join(',');
}

function joinBits(frm, name)
{
    var i = 0, k, bits = 0, obj;

    while (frm[name + i]) {
        obj = frm[name + i];
        if (obj.checked) { // checkbox
            bits += parseInt(obj.value);
        }
        if (obj.length) { // radio
            for (k = 0; k < obj.length; k++) {
                if (obj[k].checked) {
                    bits += parseInt(obj[k].value);
                }
            }
        }
        i++;
    }
    return bits;
}

function setNull(id)
{
    var swtch = document.getElementById('switch_' + id);
    var set = document.getElementById('switch_' + id + '_1');
    var block = document.getElementById('for' + id);
    var swtcher = document.getElementById('switcher_' + id);

    if (set) {
        set.disabled = swtch.checked;
    }

    if (block) {
        block.className = swtch.checked ? '' : 'hiddenBlock';
    }

    if (swtcher) {
        swtcher.className = swtch.checked ? '' : 'hiddenSwitch';
    }

    return false;
}

function escape_1251(rawStr)
{
    var chars = 'йцукенгшщзхъфывапролджэячсмитьбюёЙЦУКЕНГШЩЗХЪФЫВАПРОЛДЖЭЯЧСМИТЬБЮЁ+()|?&$#@" ';
    var hexCP1251 = "%E9%F6%F3%EA%E5%ED%E3%F8%F9%E7%F5%FA%F4%FB%E2%E0%EF%F0%EE%EB%E4%E6%FD%FF%F7%F1%EC%E8%F2%FC%E1%FE%B8%C9%D6%D3%CA%C5%CD%C3%D8%D9%C7%D5%DA%D4%DB%C2%C0%CF%D0%CE%CB%C4%C6%DD%DF%D7%D1%CC%C8%D2%DC%C1%DE%A8%2B%28%29%7C%3F%26%24%23%40%22%20";

    var ret = '', ch, pos, i;

    for (i = 0; i < rawStr.length; i++) {
        ch = rawStr.charAt(i);
        pos = chars.indexOf(ch);
        ret += ((pos >= 0) ? hexCP1251.substring(pos * 3, (pos + 1) * 3) : ch);
    }

    return ret;
}

function operateByButton(e) {
    e = e ? e : event;
    document.getElementById('flows').focus()
    if (e.keyCode == 46 && !document.getElementById('delItem').disabled) {
        flowManager.deleteItem()
    }
    if ((e.keyCode == 10 || e.keyCode == 13) && !document.getElementById('renameIt').disabled) {
        flowManager.renameItem();
    }
    return true;
}