var headline_count;
    var headline_interval;
    var old_headline = 0;
    var current_headline = 0;
     
    $(document).ready(function(){
        headline_count = $("div.headline").size();
        $("div.headline:eq("+current_headline+")").css('top','5px');
        headline_interval = setInterval(headline_rotate, 10000); // tiempo en milisegundos
        $('#marquesina').hover(function() {
            clearInterval(headline_interval);
        }, function() {
            headline_interval = setInterval(headline_rotate, 10000); // tiempo en milisegundos
            headline_rotate();
        });
    });
    
    function headline_rotate() {
        current_headline = (old_headline + 1) % headline_count; 
        $("div.headline:eq(" + old_headline + ")").animate({top: -80},"slow", function() {
            $(this).css('top','80px');
        });
        $("div.headline:eq(" + current_headline + ")").show().animate({top: 5},"slow");  
        old_headline = current_headline;
    }