var n4 = (document.layers) ? 1 : 0;
var ie = (document.all) ? 1 : 0;
var n6 = (document.getElementById && ! document.all) ? 1 : 0;
var plusN6 = 10;
function popup(page,width,height,nom)
{
 if ( width == 0 )
 {
  var windowWidth = 670;
 }
 else
 {
  var windowWidth = width;
 }
 if ( height == 0 )
 {
  var windowHeight = 520;
 }
 else
 {
  var windowHeight = height;
 }
 if ( n6 )
 {
  windowHeight = windowHeight + plusN6;
 }
 var windowLeft = 0;
 var windowTop  = 0;
 w = window.open(page,nom,'menubar=no,location=no,toolbar=yes,status=yes,resizable=yes,scrollbars=yes,fullscreen=no,width='+windowWidth+',height='+windowHeight+',top='+windowTop+',left='+windowLeft);
}