var headline_scroll_count;
var headline_scroll_interval;
var old_headline_scroll = 0;
var current_headline_scroll = 0;

$(document).ready(function(){
  headline_scroll_count = $("div.headline_scroll").size();
  $("div.headline_scroll:eq("+current_headline_scroll+")").css('top','5px');
  
  headline_scroll_interval = setInterval(headline_scroll_rotate,5000); //time in milliseconds
  $('#scrollup').hover(function() {
    clearInterval(headline_scroll_interval);
  }, function() {
    headline_scroll_interval = setInterval(headline_scroll_rotate,5000); //time in milliseconds
    headline_scroll_rotate();
  });
});

function headline_scroll_rotate() {
  current_headline_scroll = (old_headline_scroll + 1) % headline_scroll_count; 
  $("div.headline_scroll:eq(" + old_headline_scroll + ")").animate({top: -200},"slow", function() {
    $(this).css('top','210px');
    });
  $("div.headline_scroll:eq(" + current_headline_scroll + ")").show().animate({top: 5},"slow");  
  old_headline_scroll = current_headline_scroll;
}