// JavaScript Document

function afficher(element){
	
	if ( document.getElementById(element).style.display == 'none' ) {
	
		document.getElementById(element).style.visibility='visible';
		document.getElementById(element).style.display='block';
		
	} else {
	
		document.getElementById(element).style.visibility='hidden';
		document.getElementById(element).style.display='none';
		
	}
	
}