function slideSwitch() {
var $active = $('#slideshow DIV.active');
if ( $active.length == 0 ) $active = $('#slideshow DIV:last');
var $next = $active.next().length ? $active.next()
: $('#slideshow DIV:first');
$active.addClass('last-active');
$next.css({opacity: 0.0})
.addClass('active')
.animate({opacity: 1.0}, 800, function() {
$active.removeClass('active last-active');
});
}
$(function() {
setInterval( "slideSwitch()", 3600 );
});