function slideSwitch() {
    var $active = $('#slideshow IMG.active');
    if ( $active.length == 0 ) $active = $('#slideshow IMG:last');
    var $next =  $active.next().length ? $active.next()
        : $('#slideshow IMG:first');
    $active.addClass('last-active');
    $next.css({opacity: 0.0})
        .addClass('active')
        .animate({opacity: 1.0}, 1000, function() {
            $active.removeClass('active last-active');
        });
}

function preloadImg() {
	for(var i = 0; i<arguments.length; i++)
	{
	 	var img = new Image(); 
		$(img).load(function () {
			$(this).hide();   
			$('#slideshow').append(this).removeClass("loading");    
			$(this).fadeIn();
		}).error(function () {
		}).attr('src', arguments[i]);
	}
};