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) {
		vide01_100m_over = newImage("images/vide01-100m_over.jpg");
		id100m_over = newImage("images/100m-over.jpg");
		id110m_over = newImage("images/110m-over.jpg");
		vide06_110m_over = newImage("images/vide06-110m_over.jpg");
		relais_110m_over = newImage("images/relais-110m_over.jpg");
		relais_over = newImage("images/relais-over.jpg");
		vide10_110m_over = newImage("images/vide10-110m_over.jpg");
		vide07_relais_over = newImage("images/vide07-relais_over.jpg");
		vide07_interface_13_over = newImage("images/vide07-interface_13_over.jpg");
		interface_13_over = newImage("images/interface_13-over.jpg");
		longueur_interface_13_over = newImage("images/longueur-interface_13_over.jpg");
		longueur_over = newImage("images/longueur-over.jpg");
		perche_longueur_over = newImage("images/perche-longueur_over.jpg");
		perche_over = newImage("images/perche-over.jpg");
		vide09_perche_over = newImage("images/vide09-perche_over.jpg");
		vide09_javelot_over = newImage("images/vide09-javelot_over.jpg");
		javelot_over = newImage("images/javelot-over.jpg");
		disque_javelot_over = newImage("images/disque-javelot_over.jpg");
		disque_over = newImage("images/disque-over.jpg");
		vide11_disque_over = newImage("images/vide11-disque_over.jpg");
		tennis_over = newImage("images/tennis-over.jpg");
		basketball_tennis_over = newImage("images/basketball-tennis_over.jpg");
		basketball_over = newImage("images/basketball-over.jpg");
		vide13_tennis_over = newImage("images/vide13-tennis_over.jpg");
		volleyball_basketball_over = newImage("images/volleyball-basketball_over.jpg");
		volleyball_over = newImage("images/volleyball-over.jpg");
		football_volleyball_over = newImage("images/football-volleyball_over.jpg");
		football_over = newImage("images/football-over.jpg");
		vide15_volleyball_over = newImage("images/vide15-volleyball_over.jpg");
		vide15_football_over = newImage("images/vide15-football_over.jpg");
		vide16_football_over = newImage("images/vide16-football_over.jpg");
		preloadFlag = true;
	}
}