/************** Ouverture d'un div **************/
function OpenClosedDiv(id_pres){
	if(document.getElementById(id_pres).style.display != 'block' ){
		document.getElementById(id_pres).style.display = 'block';
	}
	else {
		document.getElementById(id_pres).style.display = 'none';
	}
}

function CloseDiv(id_pres){
	document.getElementById(id_pres).style.display='none';		
}	
function OpenDiv(id_pres){
	document.getElementById(id_pres).style.display='block';
}