function afficherInfos(selection){
	if(document.getElementById(selection).style.display == 'none')
	{
		document.getElementById(selection).style.display = '';
		document.getElementById('lien').title = 'Cacher les informations';
		document.getElementById('instructions').style.display = 'none';
	}
	else
	{
		document.getElementById(selection).style.display = 'none';
		document.getElementById('lien').title = 'Afficher les informations';
		document.getElementById('instructions').style.display = '';
	}

}