function fct_contenu(ident){

switch (ident)
   {	   
	  case 1: 
         new Ajax.Updater('contenu','home.php',{method: 'get'});
         break;
		 
      case 2: 
         new Ajax.Updater('contenu','visite_virtuelle.php',{method: 'get'});
         break;
      
      case 3: 
         new Ajax.Updater('contenu','le_concept.php',{method: 'get'});
         break;
         
      case 4: 
         new Ajax.Updater('contenu','realisation.php',{method: 'get'});
         break;
      
	  case 5: 
         new Ajax.Updater('contenu','tarifs.php',{method: 'get'});
         break;
	
	  case 6: 
         new Ajax.Updater('contenu','contacts.php',{method: 'get'});
         break;
		 
	  case 7: 
         new Ajax.Updater('contenu','cgv.php',{method: 'get'});
         break;
   }
}