function montre(id) {
	if (document.getElementById) {
		document.getElementById(id).style.visibility="visible";
	} else if (document.all) {
		document.all[id].style.visibility="visible";
	} else if (document.layers) {
		document.layers[id].visibility="visible";
					}
}

function cache(id) {
	if (document.getElementById) {
		document.getElementById(id).style.visibility="hidden";
	} else if (document.all) {
		document.all[id].style.visibility="hidden";
	} else if (document.layers) {
		document.layers[id].visibility="hidden";
					}
}