if (document.images) 
{
sm_marques1 = new Image ;
sm_marques1.src = "http://webdev.mediaserv.net/actiburo/media/menu_marques.gif";
sm_marques2 = new Image;
sm_marques2.src = "http://webdev.mediaserv.net/actiburo/media/menu_marques_up.gif";

sm_categories1 = new Image ;
sm_categories1.src = "http://webdev.mediaserv.net/actiburo/media/menu_categories.gif";
sm_categories2 = new Image;
sm_categories2.src = "http://webdev.mediaserv.net/actiburo/media/menu_categories_up.gif";

sm_promotions1 = new Image ;
sm_promotions1.src = "http://webdev.mediaserv.net/actiburo/media/menu_promotions.gif";
sm_promotions2 = new Image;
sm_promotions2.src = "http://webdev.mediaserv.net/actiburo/media/menu_promotions_up.gif";

sm_charte1 = new Image ;
sm_charte1.src = "http://webdev.mediaserv.net/actiburo/media/menu_charte.gif";
sm_charte2 = new Image;
sm_charte2.src = "http://webdev.mediaserv.net/actiburo/media/menu_charte_up.gif";
}
	
function affiche_sous_menu(nochoix) 
{ 
alert("toto");
	document.all[nochoix].style.display="block" ;
}
function cache_sous_menu(nochoix) 
{ 
	document.all[nochoix].style.display="none" ;
}