function Masque1() {
    document.getElementById('diapo1').style.visibility="hidden";
	document.getElementById('diapo1').style.height="0px";
	document.getElementById('diapo1').style.display = "none";
}
function Masque2() {
    document.getElementById('diapo2').style.visibility="hidden";
	document.getElementById('diapo2').style.height="0px";
	document.getElementById('diapo2').style.display = "none";
}

function Affiche1() {
	document.getElementById('diapo1').style.visibility="visible";
	document.getElementById('diapo1').style.height="440px";
	document.getElementById('diapo1').style.display = "";
}

function Affiche2() {
	document.getElementById('diapo2').style.visibility="visible";
	document.getElementById('diapo2').style.height="440px";
	document.getElementById('diapo2').style.display = "";
}