function init_mediamenu()
 {
   var div      = document.getElementById('mediamenu');
   if(div)
   {
   var tw = new Tween(div.style, 'height', Tween.regularEaseInOut, 0, 72, .5, 'px');
   div.startf = function ()
  	        {
  	           div.style.height='0px';
                   div.style.overflow = 'hidden';
  	           div.style.display = 'block';
  	           tw.onMotionFinished = function(){ div.style.overflow = 'visible'; tw.onMotionFinished = undefined; }
  	           tw.continueTo(72, .5);
  	        }
   div.endf  = function ()
  	       {
                   div.style.overflow = 'hidden';
  	           tw.onMotionFinished = function(){ div.style.display = 'none'; tw.onMotionFinished = undefined; }
  	           tw.continueTo(0, .5);
  	       }
   }
}
 function init_mediasubmenubg()
 {
   var div      = document.getElementById('mediasubmenubg');
   if(div)
   {
   var tw = new Tween(div.style, 'height', Tween.regularEaseInOut, 0, 91, .5, 'px');
   div.startf = function ()
  	        {
  	           div.style.height='0px';
                   div.style.overflow = 'hidden';
  	           div.style.display = 'block';
  	           tw.onMotionFinished = function(){ div.style.overflow = 'visible'; tw.onMotionFinished = undefined; }
  	           tw.continueTo(91, .5);
  	        }
   div.endf  = function ()
  	       {
                   div.style.overflow = 'hidden';
  	           tw.onMotionFinished = function(){ div.style.display = 'none'; tw.onMotionFinished = undefined; }
  	           tw.continueTo(0, .5);
  	       }
   }
}
 function init_aboutmenu()
 {
   var div      = document.getElementById('aboutmenu');
   if(div)
   {
   var tw = new Tween(div.style, 'height', Tween.regularEaseInOut, 0, 72, .5, 'px');
   div.startf = function ()
  	        {
  	           div.style.height='0px';
                   div.style.overflow = 'hidden';
  	           div.style.display = 'block';
  	           tw.onMotionFinished = function(){ div.style.overflow = 'visible'; tw.onMotionFinished = undefined; }
  	           tw.continueTo(72, .5);
  	        }
   div.endf  = function ()
  	       {
                   div.style.overflow = 'hidden';
  	           tw.onMotionFinished = function(){ div.style.display = 'none'; tw.onMotionFinished = undefined; }
  	           tw.continueTo(0, .5);
  	       }
   }
}
 function init_aboutsubmenubg()
 {
   var div      = document.getElementById('aboutsubmenubg');
   if(div)
   {
   var tw = new Tween(div.style, 'height', Tween.regularEaseInOut, 0, 91, .5, 'px');
   div.startf = function ()
  	        {
  	           div.style.height='0px';
                   div.style.overflow = 'hidden';
  	           div.style.display = 'block';
  	           tw.onMotionFinished = function(){ div.style.overflow = 'visible'; tw.onMotionFinished = undefined; }
  	           tw.continueTo(91, .5);
  	        }
   div.endf  = function ()
  	       {
                   div.style.overflow = 'hidden';
  	           tw.onMotionFinished = function(){ div.style.display = 'none'; tw.onMotionFinished = undefined; }
  	           tw.continueTo(0, .5);
  	       }
   }
}

function init_tweens()
{
 init_aboutsubmenubg();
 init_aboutmenu();
 init_mediasubmenubg();
 init_mediamenu();
}