function showVideo()
{	

	var overlayDIV = document.getElementById('overlay');
		
	if (overlayDIV.style.display == 'none')
	{
      overlayDIV.style.height = (document.getElementById('bottom-div').clientHeight + 80) + 'px';
				
				new Effect.Appear(overlayDIV, {
					duration: 0.3,
					from: 0.0,
					to: 0.8,
					afterFinish: function()
					{
						
            overlayDIV = document.getElementById('overlay');
						videoDIV = document.getElementById('video-slide');
						
						videoDIV.style.position='absolute';
						videoDIV.style.visibility='hidden';
						videoDIV.style.display='block';
						videoDIV.style.left = ((document.body.clientWidth - videoDIV.clientWidth) / 2) - 88 + 'px';
						videoDIV.style.visibility='';

						
						new Effect.Appear(videoDIV, {
							duration: 0.5,
							afterFinish: function()
							{
								initBtn();
							}
						});
					}
				});	    
   }
}

function hideVideo()
{
	var overlayDIV = document.getElementById('overlay');
	var videoDIV = document.getElementById('video-slide');
	
	new Effect.Fade(videoDIV, {
		duration: 0.2,
		afterFinish: function()
		{
			Effect.Fade(overlayDIV, {duration: 0.2});
		}
	});
}

function initBtn(){
  
    var closePicture = document.getElementById('video-close-picture');
  	
  	closePicture.onmouseover = function()
  	{
  		document.getElementById('video-close-picture').src = '/images/divers/video-close-over.gif';
  	}
  	
  	closePicture.onmouseout = function()
  	{
  		document.getElementById('video-close-picture').src = '/images/divers/video-close.gif';
  	}
}