//jquery slideshow function

function slideSwitch() {
    var $active = $('.highlightbox.active');
	var $active_nav = $('.highlight_nav_item_inner.nav_active');
    
    if ( $active.length == 0 ) $active = $('.highlightbox:last');
    
    var $next = $active.next().length ? $active.next() : $('.highlightbox:first');
      
    $active.addClass('last-active');

    $next.css({opacity: 0.0})
        .addClass('active')
        .animate({opacity: 1.0}, 1000, function() {
            $active.removeClass('active last-active');
        });
	
	$active_nav.removeClass('nav_active');
	idx = $('.highlightbox').index($next);
	$('#highlight_nav div.highlight_nav_item:eq(' + idx + ') .highlight_nav_item_inner').addClass('nav_active');
}

$(function() {
    setInterval( "slideSwitch()", 5000 );
});