function videogradient(id, level)
{
	var box = document.getElementById(id);
	box.style.opacity = level;
	box.style.MozOpacity = level;
	box.style.KhtmlOpacity = level;
	box.style.filter = "alpha(opacity=" + level * 100 + ")";
	box.style.display="block";
	return;
}


function videofadein(id) 
{
	var level = 0;
	while(level <= 1)
	{
		setTimeout( "videogradient('" + id + "'," + level + ")", (level* 1000) + 10);
		level += 0.01;
	}
}


// Open the lightbox


function videoopenbox(fadin,id)
{
  var box = document.getElementById('videobox'); 
  document.getElementById('videofilter').style.display='block';
  
  document.getElementById('div_video1').style.display='none';
  document.getElementById('div_video2').style.display='none';
  document.getElementById('div_video3').style.display='none';
  document.getElementById('div_video'+id).style.display='block';
  if(fadin)
  {
	 videogradient("videobox", 0);
	 videofadein("videobox");
  }
  else
  { 	
    box.style.display='block';
  }  	
}

// Close the lightbox

function videoclosebox()
{
   document.getElementById('videobox').style.display='none';
   document.getElementById('videofilter').style.display='none';
}