/* Script regroupant les fonctions appliquées sur les blocs

-------------------------------------------------
Liste des fonctions :
  - disparaitreBloc()
  - fermerBloc()
-----------------------------------------------*/

function disparaitreBloc(id_bloc)
{
	var bloc = document.getElementById(id_bloc);
	var opacite = parseFloat(document.getElementById(id_bloc).style.opacity);
	
	opacite -= 0.1;
	
	bloc.style.opacity = opacite;
	bloc.style.MozOpacity = opacite;
	bloc.style.KhtmlOpacity = opacite;
	bloc.style.filter = 'alpha(opacity=' + opacite * 100 + ')';
	
	if (opacite != 0)
	{
		setTimeout(function(){disparaitreBloc(id_bloc)}, 100);
	}
	else
	{
		bloc.style.display = 'none';
	}
}

function fermerBloc(id_bloc)
{
	var bloc = document.getElementById(id_bloc);
	
	bloc.style.opacity = 1;
	bloc.style.MozOpacity = 1;
	bloc.style.KhtmlOpacity = 1;
	bloc.style.filter = 'alpha(opacity=100)';
	
	disparaitreBloc(id_bloc);
}