idArray = Array("cycle1", "cycle2", "cycle3", "cycle4", "cycle5", "cycle6", "cycle7", "cycle8");

function affiche(id_) {
	for(i=0; i<idArray.length;i++) {
		if (document.getElementById(idArray[i]))
			document.getElementById(idArray[i]).style.display = 'none';
	}
	if (document.getElementById(id_))
		document.getElementById(id_).style.display = 'block';
}