function popUp(lien,larg,haut,pop,resiz) {
  if (!resiz) {
     resiz = 'yes';
  }
  self.name="main";
  var top= Math.round((screen.height - haut)/2);
  var left= Math.round((screen.width - larg)/2);
  window.open(lien,'','top='+top+',left='+left+',toolbar=no,status=no,resizable='+resiz+',scrollbars='+pop+',location=no,menubar=no,directories=no,width='+larg+',height='+haut+'');
}

function upc(o){
  o.value=o.value.toUpperCase().replace(/([^0-9A-Z])/g,"");
}