function montre(id)
{

if (document.getElementById) {
   document.getElementById(id).style.display="block";
}
else if (document.all) {
     document.all[id].style.display="block";
     }
     else if (document.layers) {
     document.layers[id].display="block";
}
}

function cache(id) {

if (document.getElementById) {
   document.getElementById(id).style.display="none";
}
else if (document.all) {
     document.all[id].style.display="none";
}
else if (document.layers) {
     document.layers[id].display="none";
}
}

/*
 * Fonction popup
 *
 */

function popup(page,title,x,y) {
     window.open(page,""+title+"","menubar=no, status=no, scrollbars=yes, menubar=no, width="+x+", height="+y+"");
 }