function visiblePartenaire() {
document.getElementById('categorie').style.display = 'none'; 
document.getElementById('partenaire').style.display = 'block'; 
document.getElementById('partenaire-button-on').style.display = 'block'; 
document.getElementById('categorie-button-on').style.display = 'block'; 
document.getElementById('partenaire-button').style.display = 'none'; 
document.getElementById('categorie-button').style.display = 'none'; 
}


function visibleCategorie() {
document.getElementById('categorie').style.display = 'block'; 
document.getElementById('partenaire').style.display = 'none'; 
document.getElementById('partenaire-button-on').style.display = 'none'; 
document.getElementById('categorie-button-on').style.display = 'none'; 
document.getElementById('partenaire-button').style.display = 'block'; 
document.getElementById('categorie-button').style.display = 'block'; 
}