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,5000); 
  //time in milliseconds 
  $('#scrollup').hover(function() { 
    clearInterval(headline_interval); 
  }, function() { 
    headline_interval = setInterval(headline_rotate,5000); 
    //time in milliseconds 
    headline_rotate(); 
  }); 
}); 

function headline_rotate() { 
  current_headline = (old_headline + 1) % headline_count; 
  $("div.headline:eq(" + old_headline + ")").animate({top: -205},"slow", 
                                                     function() { 
                                                       $(this).css('top','210px');
                                                     }); 
  $("div.headline:eq(" + current_headline + ")").show().animate({top: 5},"slow"); 
  old_headline = current_headline; 
}