//PRE-CHARGEMENT DES IMAGES
	if(document.images){
		//NAVIGATION PREMIERE
		nav_infosdpt_off = new Image();
		nav_infosdpt_off.src = root + "/img/nav/nav_infosdpt_off.gif";
		nav_infosdpt_on = new Image();
		nav_infosdpt_on.src = root + "/img/nav/nav_infosdpt_on.gif";
		nav_clic_off = new Image();
		nav_clic_off.src = root + "/img/nav/nav_clic_off.gif";
		nav_clic_on = new Image();
		nav_clic_on.src = root + "/img/nav/nav_clic_on.gif";
		nav_statistiques_off = new Image();
		nav_statistiques_off.src = root + "/img/nav/nav_statistiques_off.gif";
		nav_statistiques_on = new Image();
		nav_statistiques_on.src = root + "/img/nav/nav_statistiques_on.gif";
		nav_savoirplus_off = new Image();
		nav_savoirplus_off.src = root + "/img/nav/nav_savoirplus_off.gif";
		nav_savoirplus_on = new Image();
		nav_savoirplus_on.src = root + "/img/nav/nav_savoirplus_on.gif";
	//NAVIGATION SECONDAIRE
		//CLIC
		ss_nav_coords_off = new Image();
		ss_nav_coords_off.src = root + "/img/nav/ss_nav_coords_off.gif";
		ss_nav_coords_on = new Image();
		ss_nav_coords_on.src = root + "/img/nav/ss_nav_coords_on.gif";
		ss_nav_labellisation_off = new Image();
		ss_nav_labellisation_off.src = root + "/img/nav/ss_nav_labellisation_off.gif";
		ss_nav_labellisation_on = new Image();
		ss_nav_labellisation_on.src = root + "/img/nav/ss_nav_labellisation_on.gif";
		ss_nav_territoire_off = new Image();
		ss_nav_territoire_off.src = root + "/img/nav/ss_nav_territoire_off.gif";
		ss_nav_territoire_on = new Image();
		ss_nav_territoire_on.src = root + "/img/nav/ss_nav_territoire_on.gif";
		ss_nav_equipe_off = new Image();
		ss_nav_equipe_off.src = root + "/img/nav/ss_nav_equipe_off.gif";
		ss_nav_equipe_on = new Image();
		ss_nav_equipe_on.src = root + "/img/nav/ss_nav_equipe_on.gif";
		ss_nav_activites_off = new Image();
		ss_nav_activites_off.src = root + "/img/nav/ss_nav_activites_off.gif";
		ss_nav_activites_on = new Image();
		ss_nav_activites_on.src = root + "/img/nav/ss_nav_activites_on.gif";
		ss_nav_gestionnaire_off = new Image();
		ss_nav_gestionnaire_off.src = root + "/img/nav/ss_nav_gestionnaire_off.gif";
		ss_nav_gestionnaire_on = new Image();
		ss_nav_gestionnaire_on.src = root + "/img/nav/ss_nav_gestionnaire_on.gif";
		ss_nav_accueil_off = new Image();
		ss_nav_accueil_off.src = root + "/img/nav/ss_nav_accueil_off.gif";
		ss_nav_accueil_on = new Image();
		ss_nav_accueil_on.src = root + "/img/nav/ss_nav_accueil_on.gif";		
}
	
	//FUNCTION DU ROLLOVER
	function swapImg(img,state){
		if(document.images)
			document[img].src = eval(img + "_" + state + ".src");
	}
	
	//Changer l'opacity d'un image button lors d'un rollover
	function switchButtonState(objBt){
		if(!objBt.filters)
			return;
		if(objBt.filters.item(0).Enabled)
			objBt.filters.item(0).Enabled = false;
		else
			objBt.filters.item(0).Enabled = true;
	}