function slideSwitch() {
    var jQueryactive = jQuery('#jquery-slide DIV.active');

    if ( jQueryactive.length == 0 ) jQueryactive = jQuery('#jquery-slide DIV:last');

    // use this to pull the divs in the order they appear in the markup
    var jQuerynext =  jQueryactive.next().length ? jQueryactive.next()
        : jQuery('#jquery-slide DIV:first');

    // uncomment below to pull the divs randomly
   // var $sibs  = $active.siblings();
   // var rndNum = Math.floor(Math.random() * $sibs.length );
   // var $next  = $( $sibs[ rndNum ] );


    jQueryactive.addClass('last-active');

    jQuerynext.css({opacity: 0.0})
        .addClass('active')
        .animate({opacity: 1.0}, 1000, function() {
            jQueryactive.removeClass('active last-active');
        });
}

jQuery(function() {
    setInterval( "slideSwitch()", 3500 );
});