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


// Open the lightbox


function openbox(fadin)
{
	var box = document.getElementById('box');
	document.getElementById('filter').style.display='block';
  
	var top=50;
	
	if(fadin)
	{
		box.style.top= ''+top+'px';
		gradient("box", 0);
		fadein("box");
	}
	else
	{ 	
		box.style.top= ''+top+'px';
		box.style.display='block';
	}
}


// Close the lightbox

function closebox()
{
   document.getElementById('box').style.display='none';
   document.getElementById('filter').style.display='none';
}