function affiche(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 efface(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";
} }


function mesbarstatut(msgStr) { //v1.0
  status=msgStr;
  document.MM_returnValue = true;
}

function PopupCentre(page,largeur,hauteur,options) {
  var top=(screen.height-hauteur)/2;
  var left=(screen.width-largeur)/2;
  window.open(page,"","top="+top+",left="+left+",width="+largeur+",height="+hauteur+","+options);
}