function _action_paid(obj) {
    var _is_paid = 0;
    if ($(obj)['data']('is_paid') == '0') {
        _is_paid = 1;
    };
    var _link = $(obj)['attr']('href');
    var _user_id = $(obj)['data']('user_id');
    $(obj)['removeClass']('estcs-ctrl-paid estcs-ctrl-notpaid');
    $(obj)['addClass']('estcs-ctrl-paid-undefined');
    XenForo['ajax'](_link, {
        is_paid: _is_paid,
        user_id: _user_id
    }, function(ajax_data, text_status) {
        if (XenForo['hasResponseError'](ajax_data)) {
            $(obj)['removeClass']('estcs-ctrl-paid-undefined');
            if (_is_paid) {
                $(obj)['addClass']('estcs-ctrl-notpaid');
            } else {
                $(obj)['addClass']('estcs-ctrl-paid');
            };
            return false;
        };
        if (!ajax_data['participant']) {
            return false;
        };
        $(obj)['removeClass']('estcs-ctrl-paid estcs-ctrl-notpaid estcs-ctrl-paid-undefined');
        if (ajax_data['participant']['is_payed']) {
            $(obj)['addClass']('estcs-ctrl-paid');
            $(obj)['data']('is_paid', '1');
        } else {
            $(obj)['addClass']('estcs-ctrl-notpaid');
            $(obj)['data']('is_paid', '0');
        };
    });
};
$(function() {
    $('.estcs-participant-ctrl')['click'](function(e) {
        switch ($(this)['data']('action')) {
            case 'paid':
                _action_paid($(this));
                break;;
            default:
                ;
        };
        return false;
    });
});