function details(index) {
var cible = "details";
if (document.getElementById) {
    i = 0;
    while (document.getElementById(cible + i)) { document.getElementById(cible + i).style.display = "none";i++;}
    document.getElementById(cible + index).style.display = "block";
}
else if (document.all) {
    i = 0;
    while (document.all[cible + i]) { document.all[cible + i].style.display = "none";i++;}
    document.all[cible + index].style.display = "block";
}}