var active_slide = 1;

$(document).ready(function() {
    adjust_slider_size();
    slideshowTimeout = setTimeout('slideshow()', 4000);
});

$(window).resize(function() {
    adjust_slider_size();
});

function adjust_slider_size()
{
    var news_teaser_width = $('#news-slider').width() - 281;
    var news_teaser_height = $('.table-of-contents').height();
    $('.news-teaser').width(news_teaser_width);
    $('.news-teaser').height(news_teaser_height);

    $('.index-center-col').width(news_teaser_width);
}

function switch_index_slider(news_id)
{
    clearTimeout(slideshowTimeout);
    $('.slider-news-title').removeClass('active');
    $('#slider-news-title-' + news_id).addClass('active');
    $('.slider-news-teaser').hide();
    $('#slider-news-teaser-' + news_id).fadeIn(800, function() {
        slideshowTimeout = setTimeout(slideshow, 4000);
    });
}

function slideshow()
{
    var num_of_slides = $('#news-teaser-slider').children().size();
    active_slide++;
    if(active_slide > num_of_slides) active_slide=1;
    if(active_slide <= 0) active_slide = num_of_slides;

    switch_index_slider(active_slide);
}