static public  ArrayList<String> searchFile(String chemin, String extension) {
		
		File directory = new File(chemin);
		File[] subfiles = directory.listFiles();
		ArrayList<String> list = new ArrayList<String>();
		ArrayList<String> list2 = new ArrayList<String>();
		String nom = new String();
		
		for(int i=0 ; i<subfiles.length; i++){
			nom = subfiles[i].getName();
			
			if(nom.endsWith(extension)){
				if(nom.length() == 7){
					list.add(nom);
				}
				
				if(nom.length() == 8){
					list2.add(nom);
				}
			}
		}
		Collections.sort(list);
		Collections.sort(list2);
		
		list.addAll(list2);
		
		return list;
	}