var headline_count1;
var headline_interval1;
var old_headline1 = 0;
var current_headline1=0;

$(document).ready(function(){
  headline_count1 = $("div.headline1").size();
  $("div.headline1:eq("+current_headline1+")").css('top','5px');
  
  headline_interval1 = setInterval(headline_rotate1,5800); //time in milliseconds
  $('#scrollup1').hover(function() {
    clearInterval(headline_interval1);
  }, function() {
    headline_interval1 = setInterval(headline_rotate1,5800); //time in milliseconds
    headline_rotate1();
  });
});

function headline_rotate1() {
  current_headline1 = (old_headline1 + 1) % headline_count1; //remainder will always equal old_headline1 until it reaches headline_count1 - at which point it becomes zero. clock arithmetic
  $("div.headline1:eq(" + old_headline1 + ")").animate({top: -245},"slow", function() {
    $(this).css('top','250px');
    });
  $("div.headline1:eq(" + current_headline1 + ")").show().animate({top: 5},"slow");  
  old_headline1 = current_headline1;
}