function slideSwitch(active_div,time) {
    
	num = $(active_div+ " > ul > li").length;// + " li"
	
	uusi = '<li>'+$(active_div+ " ul li:last").html()+'</li>';
	$(uusi).appendTo(active_div+ " ul");
	$(active_div+ " ul li:last").css({opacity: 0.0});
	
	if(num < mainpage_images_js.length){
		$(active_div+ " ul li:last img").attr("src",mainpage_images_js[num]);
		$(active_div+ " ul li:last img").attr("alt",mainpage_title_js[num]);
		$(active_div+ " ul li:last").animate({opacity: 1.0}, time );
	}
	else{
		$(active_div+ " ul li:last img").attr("src",mainpage_images_js[0]);
		$(active_div+ " ul li:last img").attr("alt",mainpage_title_js[0]);
		$(active_div+ " ul li:last").animate({opacity: 1.0}, time, function() {
            while( $(active_div+ " > ul > li").length > 1){
				$(active_div+ " ul li:last").remove();	
			}
        });
	}
	
}