if (document.images) {
	image1on = new Image();
	image1on.src = '/Landmarks/images/nav/map2_on.gif';
	image2on = new Image();
	image2on.src = '/Landmarks/images/nav/lis2_on.gif';
	image3on = new Image();
	image3on.src = '/Landmarks/images/nav/tou2_on.gif';
	image4on = new Image();
	image4on.src = '/Landmarks/images/nav/arc2_on.gif';
	image5on = new Image();
	image5on.src = '/Landmarks/images/nav/sty2_on.gif';
	image6on = new Image();
	image6on.src = '/Landmarks/images/nav/his2_on.gif';
	image7on = new Image();
	image7on.src = '/Landmarks/images/nav/gen2_on.gif';

	image1off = new Image();
	image1off.src = '/Landmarks/images/nav/map2_off.gif';
	image2off = new Image();
	image2off.src = '/Landmarks/images/nav/lis2_off.gif';
	image3off = new Image();
	image3off.src = '/Landmarks/images/nav/tou2_off.gif';
	image4off = new Image();
	image4off.src = '/Landmarks/images/nav/arc2_off.gif';
	image5off = new Image();
	image5off.src = '/Landmarks/images/nav/sty2_off.gif';
	image6off = new Image();
	image6off.src = '/Landmarks/images/nav/his2_off.gif';
	image7off = new Image();
	image7off.src = '/Landmarks/images/nav/gen2_off.gif';
}

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