function txtindex() {
document.getElementById("accueil-link").style.backgroundColor = '#3a383d';
}

function txtlp() {
document.getElementById("gamme-link").style.backgroundColor = '#3a383d';
document.getElementById("gamme-link").style.color = '#ffffff';
document.getElementById("livresphoto-link").style.backgroundColor = '#3a383d';
}

function txtlpxxl() {
document.getElementById("xxl-link").style.backgroundColor = '#00ccff';
document.getElementById("xxl-link").style.color = '#000000';
document.getElementById("livresphoto-link").style.backgroundColor = '#3a383d';
}

function txtlpxl() {
document.getElementById("xl-link").style.backgroundColor = '#66cc00';
document.getElementById("xl-link").style.color = '#000000';
document.getElementById("livresphoto-link").style.backgroundColor = '#3a383d';
}

function txtlpa4() {
document.getElementById("a4-link").style.backgroundColor = '#ffcc00';
document.getElementById("a4-link").style.color = '#000000';
document.getElementById("livresphoto-link").style.backgroundColor = '#3a383d';
}

function txtlpcarre() {
document.getElementById("carre-link").style.backgroundColor = '#ff9900';
document.getElementById("carre-link").style.color = '#000000';
document.getElementById("livresphoto-link").style.backgroundColor = '#3a383d';
}

function txtlppetit() {
document.getElementById("petit-link").style.backgroundColor = '#ff99ff';
document.getElementById("petit-link").style.color = '#000000';
document.getElementById("livresphoto-link").style.backgroundColor = '#3a383d';
}

function txtlppapierphoto() {
document.getElementById("papierphoto-link").style.backgroundColor = '#da0000';
document.getElementById("papierphoto-link").style.color = '#ffffff';
document.getElementById("livresphoto-link").style.backgroundColor = '#3a383d';
}

function txtlpcommande() {
document.getElementById("commande-link").style.backgroundColor = '#3a383d';
document.getElementById("commande-link").style.color = '#ffffff';
document.getElementById("livresphoto-link").style.backgroundColor = '#3a383d';
}