if (document.images) {
	nav1_on = new Image();
	nav1_on.src = "gifs/navi_deutsch_on.gif";
	
	nav1_off = new Image();
	nav1_off.src = "gifs/navi_deutsch_off.gif";
	
	nav2_on = new Image();
	nav2_on.src = "gifs/navi_francais_on.gif";
	
	nav2_off = new Image();
	nav2_off.src = "gifs/navi_francais_off.gif";
	
	nav3_on = new Image();
	nav3_on.src = "gifs/navi_nederlands_on.gif";
	
	nav3_off = new Image();
	nav3_off.src = "gifs/navi_nederlands_off.gif";
	
}

function img_act(imgName,img) {
	if (document.images) {
		imgOn = eval(imgName+"_on");
		document.images[imgName].src = imgOn.src;
	}
}

function img_inact(imgName,img) {
	if (document.images) {
		imgOff = eval(imgName+"_off");
		document.images[imgName].src = imgOff.src;
	}
}