function turnOn(imageName) {
	if (document.images) {
		document[imageName].src = eval(imageName + "on.src");
	}
}

// turnOff
//
// change une image par une autre
//

function turnOff(imageName) {
	if (document.images) {
		document[imageName].src = eval(imageName + "off.src");
	}
}

if (document.images) {
//--bouton acouphene
	image1on 		= new Image();
	image1on.src 	= "/images/rub1on.gif";
	image1off 		= new Image();
	image1off.src 	= "/images/rub1off.gif";
//--boutique	
	image2on 		= new Image();
	image2on.src 	= "/images/rub2on.gif";
	image2off 		= new Image();
	image2off.src 	= "/images/rub2off.gif";
	//--magasins
	image51on 		= new Image();
	image51on.src 	= "/images/rub51on.gif";
	image51off 		= new Image();
	image51off.src 	= "/images/rub51off.gif";
//--partenaire	
	image3on 		= new Image();
	image3on.src 	= "/images/rub3on.gif";
	image3off 		= new Image();
	image3off.src 	= "/images/rub3off.gif";
//--ecrire
	image4on 		= new Image();
	image4on.src 	= "/images/rub4on.gif";
	image4off 		= new Image();
	image4off.src 	= "/images/rub4off.gif";
//--bouton coach
//	image14on 		= new Image();
//	image14on.src 	= "/include/img/srub5on.gif";
//	image14off 		= new Image();
//	image14off.src 	= "/include/img/srub5off.gif";
//	image15on 		= new Image();
//	image15on.src 	= "/include/img/srub6on.gif";
//	image15off 		= new Image();
//	image15off.src 	= "/include/img/srub6off.gif";
//	image16on 		= new Image();
//	image16on.src 	= "/include/img/srub7on.gif";
//	image16off 		= new Image();
//	image16off.src 	= "/include/img/srub7off.gif";
}