function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		nouvelles_over = newImage("../images/btnNouvelles_fr-on.gif");
		salles_over = newImage("../images/btnSalles_fr-on.gif");
		millieu_over = newImage("../images/btnMillieu_fr-on.gif");
		services_over = newImage("../images/btnServices_fr-on.gif");
		avantages_over = newImage("../images/btnAvantages_fr-on.gif");
		localisation_over = newImage("../images/btnLocalisation_fr-on.gif");
		references_over = newImage("../images/btnReferences_fr-on.gif");
		jeux_over = newImage("../images/btnJeux_fr-on.gif");
		contact_over = newImage("../images/btnContact_fr-on.gif");
		english_over = newImage("../images/btnEnglish-on.gif");
		logoloowak_over = newImage("../images/logoloowak-on.gif");	
		preloadFlag = true;
	}
}