function Navigation() {
    var links = $('navbar').getElementsByTagName('a');
    for (var i = 0; link = links[i]; i++) {
        if (link.href == location.href 
                || location.href.indexOf('kategorier') > 0 
                        && link.href.indexOf('arkiv') > 0) {
            Element.addClassName(link, 'current');
            break;
        }
    }
}

var Sibling = {
    previous : function(elm) {
        var s = elm.previousSibling;
        while (s && s.nodeType == 3)
            s = s.previousSibling;
        return s;
    }, 
    next : function(elm) {
        var s = elm.nextSibling;
        while (s && s.nodeType == 3)
            s = s.nextSibling;
        return s;       
    }
};

function createCookie(name,value,days) {
    if (days) {
        var date = new Date();
        date.setTime(date.getTime()+(days*24*60*60*1000));
        var expires = "; expires="+date.toGMTString();
    } else 
        expires = "";
    document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for(var i=0;i < ca.length;i++) {
        var c = ca[i];
        while (c.charAt(0)==' ') c = c.substring(1,c.length);
            if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
    }
    return null;
}