valeur = location.search.substring(6,location.search.length);

function afficheId(baliseId) {
	var div = document.getElementById(baliseId);
    if (document.getElementById && div != null && div.style.visibility == 'hidden') {
         div.style.visibility = 'visible';
         div.style.display = 'block';
    }
	else {
		 div.style.visibility = 'hidden';
		 div.style.display = 'none';
	}
}

function cacheId(baliseId) {
	var div = document.getElementById(baliseId);
    if (document.getElementById && div !=  null) {
         div.style.visibility = 'hidden';
         div.style.display = 'none';
    }
}

function disparait(){
	cacheId('service');
	cacheId('conseil');
	cacheId('reference');
}

function disparait_l(){
	cacheId('calque18');
	cacheId('calque19');
	cacheId('calque20');
}
function disparait_ss(){
	for(i = 1; i < 17; i++){
	cacheId('calque'+i);
	}
}
for(i = 1; i < 25; i++){
	cacheId('calque'+i);
}
cacheId('conseil');
cacheId('reference');