var vidnav = $('videonav');
var vidslide = new Fx.Tween(vidnav);
vidslide.start('left', '126');

var vidscroll = $('vidnav-inner');
var Timer;

function ScrollUp()
{
  Timer = setInterval("document.getElementById('vidnav-outter').scrollTop -= 3", 5);
  if ($('vidnav-outter').scrollTop != 0){
  $('vidbottom').style.backgroundPosition = 'center';
  $('vidtop').style.backgroundPosition = 'bottom';
  }
}
function ScrollDown()
{
  Timer = setInterval("document.getElementById('vidnav-outter').scrollTop += 3", 5);
   if ($('vidnav-outter').scrollTop < 2010){
   $('vidtop').style.backgroundPosition = 'center';
   $('vidbottom').style.backgroundPosition = 'bottom';
  }
}
function ScrollUpStop()
{
  Timer = clearInterval(Timer);
  if ($('vidnav-outter').scrollTop == 0){
  $('vidtop').style.backgroundPosition = 'center';
  }
  if ($('vidnav-outter').scrollTop > 0){
  $('vidtop').style.backgroundPosition = 'top';
  }
  if ($('vidnav-outter').scrollTop >= 1000){
  $('vidbottom').style.backgroundPosition = 'center';
  }
  if ($('vidnav-outter').scrollTop < 2000){
  $('vidbottom').style.backgroundPosition = 'top';
  }
}
function ScrollDownStop()
{
  Timer = clearInterval(Timer);
  if ($('vidnav-outter').scrollTop == 0){
  $('vidtop').style.backgroundPosition = 'center';
  }
  if ($('vidnav-outter').scrollTop > 0){
  $('vidtop').style.backgroundPosition = 'top';
  }
  if ($('vidnav-outter').scrollTop >= 1000){
  $('vidbottom').style.backgroundPosition = 'center';
  }
  if ($('vidnav-outter').scrollTop < 2000){
  $('vidbottom').style.backgroundPosition = 'top';
  }
}