var canDoImages;
if( document.images==null ){
	canDoImages = false;} else {
	canDoImages = true;}



act1a = new Image(400, 400);
act1a.src = "../_interieurs/i_york3_018.jpg";
act1b = new Image(400, 400);
act1b.src = "../_interieurs/i_york3_017.jpg";

act2a = new Image(400, 400);
act2a.src = "../_interieurs/i_york3_019.jpg";
act2b = new Image(400, 400);
act2b.src = "../_interieurs/i_york3_017.jpg";

act3a = new Image(400, 400);
act3a.src = "../_interieurs/i_york3_020.jpg";
act3b = new Image(400, 400);
act3b.src = "../_interieurs/i_york3_017.jpg";

function img_act(imgName, target) { 
	if( canDoImages ) {
		descrimgOn = eval(imgName + ".src");
		document[target].src = descrimgOn;} 
}
function  img_inact(imgName, target) { 
	if( canDoImages ) {
		descrimgOn = eval(imgName + ".src");	
		document[target].src = descrimgOn;} 
}