function afficherMenu(page){
if (page == "index"){
 	menu = " Accueil <a href=\"esi/analyse.html\">Analyse</a> <a href=\"esi/db.html\">Base_de_donn&#233;es</a> <a href=\"esi/java.html\">Java</a> <a href=\"esi/web.html\">Web</a> <a href=\"esi/autres.html\">Autres</a>" ;
}
else
if (page == "secondaire" || page == "promenades"){ 
		menu = 	"<a href=\"index.html\">Accueil</a>";
}
else{
	menu = "<a href=\"../index.html\">Accueil</a>";
	if (page == "analyse")	menu = menu+" Analyse";
		else		menu = menu+" <a href=\"analyse.html\">Analyse</a>";
	if (page == "db")	menu = menu+" Base_de_donn&#233;es";
		else		menu = menu+" <a href=\"db.html\">Base_de_donn&#233;es</a>";
	if (page == "java")	menu = menu+" Java";
		else		menu = menu+" <a href=\"java.html\">Java</a>";
	if (page == "web")	menu = menu+" Web";
		else		menu = menu+" <a href=\"web.html\">Web</a>";
	if (page == "autres")	menu = menu+" Autres";
		else		menu = menu+" <a href=\"autres.html\">Autres</a>";
	}
document.write(menu);
}