function redirection () {

var url=self.location.href ;

if (url.indexOf("needsolutions")!=-1){
  window.location.href='http://www.needsolutions.fr/ns/index.html';
  return; 
} 
if (url.indexOf("needrh")!=-1){
  window.location.href='http://www.needrh.fr/nrh/index.html';
  return; 
} 
if (url.indexOf("needconsult")!=-1){
  window.location.href='http://www.needconsult.com/nc/index.html';
  return; 
}
}