var headline_count;
var headline_interval;
var old_headline = 0;
var current_headline = 0;
var maxHeight = 0;

$(document).ready(function(){
  
  headline_count = $("div.multiItems").size();
  $("div.multiItems").each(function() {
    var current = $(this);
    if (current.height() > maxHeight) {
      maxHeight = current.height();
    }
  });
  $("#scrollup").height(maxHeight);
  var mItemHeight = maxHeight + 20;
  $("div.multiItems").css('top', mItemHeight + 'px'); 
  $("div.multiItems:eq("+current_headline+")").css('top', '5px'); 
  headline_interval = setInterval(headline_rotate,7000);
  
  $('#scrollup').hover(function() {
    clearInterval(headline_interval);
  }, function() {
    headline_interval = setInterval(headline_rotate,7000);
  });
 
});

function headline_rotate() {
  current_headline = (old_headline + 1) % headline_count;
  $("div.multiItems:eq(" + old_headline + ")")
    .animate({top: -235},"slow", function() {
      $(this).css('top', '240px');
    });
  $("div.multiItems:eq(" + current_headline + ")")
    .animate({top: 5},"slow");  
  old_headline = current_headline;
}