function switchImage(loc, cap, id, width, height) {
	document.getElementById('main_image').src = "/images/max_width.php?m=420&i=" + loc;
	document.getElementById('imagecaption').innerHTML = cap;
	if (cap.length == 0) {
		document.getElementById('imagecaption').style.display = 'none';
	} else {
		document.getElementById('imagecaption').style.display = 'block';
	}
	
	document.getElementById('launchLargeViewLink').onclick = function() {
		launchLargeView(id, width, height);
		return false;
	};
}