var actualmenu = 0;

function showMenu(menu, anz)
{
    if (menu != actualmenu) {
        $('#submenu_' + menu).css('left', '1188px');
        if (actualmenu > 0 && actualmenu <= anz) {
            $('#submenu_' + actualmenu).animate({left: '-1188px'}, 700, 'linear', function() {
                document.getElementById('submenu_' + actualmenu).className = '';
            })
            document.getElementById('submenu_'+menu).className = 'active';
            document.getElementById('menuitem_'+actualmenu).className = '';
            document.getElementById('menuitem_'+menu).className = 'active';
            $('#submenu_' + menu).animate({left: '0px'}, 700, 'linear', function() {
                actualmenu = menu;
            })
        } else {
            for (var i = 1; i <= anz; i++) {
                $('#submenu_' + i).css('left', '1188px');
                document.getElementById('submenu_'+i).className = '';
            }
            document.getElementById('submenu_'+menu).className = 'active';
            document.getElementById('menuitem_'+menu).className = 'active';
            $('#submenu_' + menu).css('left', '0');
            actualmenu = menu;
        }
    }
}

function hideShowHeader()
{   
    if ($.cookie('header') === 'false') {
        $.cookie('header', 'true');
        displayHeader();
    } else {
        $.cookie('header', 'false');
        displayHeader();
    }
}

function displayHeader()
{
    if ($.cookie('header') === 'false') {
        $('#headline').css('height', '40px');
        $('#headline_button').css('background-image', 'url(images/down.png)');
    } else {
        $('#headline').css('height', '150px');
        $('#headline_button').css('background-image', 'url(images/top.png)');
    }
}


jQuery.cookie = function(name, value, options) {
    if (typeof value != 'undefined') { // name and value given, set cookie
        options = options || {};
        if (value === null) {
            value = '';
            options.expires = -1;
        }
        var expires = '';
        if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) {
            var date;
            if (typeof options.expires == 'number') {
                date = new Date();
                date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000));
            } else {
                date = options.expires;
            }
            expires = '; expires=' + date.toUTCString(); // use expires attribute, max-age is not supported by IE
        }
        // CAUTION: Needed to parenthesize options.path and options.domain
        // in the following expressions, otherwise they evaluate to undefined
        // in the packed version for some reason...
        var path = options.path ? '; path=' + (options.path) : '';
        var domain = options.domain ? '; domain=' + (options.domain) : '';
        var secure = options.secure ? '; secure' : '';
        document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join('');
    } else { // only name given, get cookie
        var cookieValue = null;
        if (document.cookie && document.cookie != '') {
            var cookies = document.cookie.split(';');
            for (var i = 0; i < cookies.length; i++) {
                var cookie = jQuery.trim(cookies[i]);
                // Does this cookie string begin with the name we want?
                if (cookie.substring(0, name.length + 1) == (name + '=')) {
                    cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                    break;
                }
            }
        }
        return cookieValue;
    }
};