function slide_show(){
    var active = $('ul.tabs li.active');
    if(active.length == 0) var active = $('ul.tabs li:first');
    active_thumb = $('a[rel=' + active.data('id') + ']');
    
    var next = active.next();
    if(next.length == 0) var next = $('ul.tabs li:first');
    next_thumb = $('a[rel=' + next.data('id') + ']');
    
    ss_toggle(active, next);
    tabs_head.fadeTo(700, 0.5);
    next_thumb.fadeTo(1000, 1.0);
    
    ctab = next.data('id');
    
}

//fadeout current element, fadein target element
function ss_toggle(current, target){
    var css = 'active';
    current.fadeOut(700, function(){
        current.removeClass(css);
        target.fadeIn(1000).addClass(css);
    });
}

//url manipulation (anchor)
function get_anchor(){
    anchor = url.split('#')[1];
    
    if (typeof(anchor) != 'undifined'){
        return anchor;
    } else {
        return false;
    }
}
function set_anchor(str){
    url = url.split('#');
    url = url[0] + '#' + str;
    
    document.location = url;
}