annuncio = 1+Math.floor((Math.random()*2))
if (annuncio==1){
   var uri = 'http://www.globallab.it/banner/banner_gdrinforma.js?' + new String (Math.random()).substring (2, 11);
}else if (annuncio==2){
   var uri = 'http://www.globallab.it/banner/banner_smapinforma.js?' + new String (Math.random()).substring (2, 11);
}else {
   var uri = 'http://www.globallab.it/banner/banner_smapinforma.js?' + new String (Math.random()).substring (2, 11);
}; 
  document.write ('<sc'+'ript language="JavaScript" src="'+uri+'" charset="ISO-8859-1"><\/sc'+'ript>');


  var uri = 'http://impit.tradedoubler.com/imp/pool/js/75045/1099230?' + new String (Math.random()).substring (2, 11);
  document.write ('<sc'+'ript language="JavaScript" src="'+uri+'" charset="ISO-8859-1"><\/sc'+'ript>');


  var uri = 'http://www.globallab.it/banner/banner_esterno.js?' + new String (Math.random()).substring (2, 11);
  document.write ('<br><br><sc'+'ript language="JavaScript" src="'+uri+'" charset="ISO-8859-1"><\/sc'+'ript>');