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(formtitle, fadin)
{
  var box = document.getElementById('box'); 
  document.getElementById('filter').style.display='block';

  var btitle = document.getElementById('boxtitle');
  btitle.innerHTML = formtitle;
  
  if(fadin)
  {
	 gradient("box", 0);
	 fadein("box");
  }
  else
  { 	
    box.style.display='block';
  }  	
}


// Close the lightbox

function closebox()
{
   document.getElementById('box').style.display='none';
   document.getElementById('filter').style.display='none';
}
//Pour le lightbox de modification de personne sur IE
function closebox2()
{
  //Si c'est IE, probleme avec le div qui contient le ligthbox, ça cause un 'over is Null or is not and object'.Solution on reaffiche la page
  //==> on cherche à mieux faire
  if (window.ActiveXObject){
    
    fc_film_id=document.getElementsByName("fc_film_id")[0].value;
    sousetape_id=document.getElementsByName("sousetape_id")[0].value;
    url="inscription_films.php?fc_film_id="+fc_film_id+ "&etape_id=4";
    if (sousetape_id>0)url+="&sousetape_id="+sousetape_id;
    window.location.href=url;
  }//Firefox, Google ghrome etc .. pas de problème
  else closebox();
}