var cssfile = "";
if (paramOk) {
  cssfile = ParamValeur("cssfile");
}

var extension = "";
if (navigator.appName == 'Microsoft Internet Explorer') {
     extension = "_ie.css";
}
else
if (navigator.appName == 'Netscape') {
     extension = "_netscape.css";
}
else
     extension = "_netscape.css";


if (cssfile.length > 0)
{
   document.writeln('<link rel="stylesheet" type="text/css" href="' + cssfile + extension + '" media="screen">');

}
else
{

   document.writeln('<link rel="stylesheet" type="text/css" href="../styles/style_colore_1000px' + extension + '" media="screen">');
}