var current_contact_map = null;

function switch_contact_map(to, to_name) {
	if(current_contact_map != null &&
		current_contact_map == to)
		return;
	if(!$('map_image_' + to))
		return;
	current_contact_map = $('map_image_' + current_contact_map);
	if(current_contact_map)
		current_contact_map.setStyle('display', 'none');
	current_contact_map = to;

	$('map_image_' + to).setStyle('display', 'block');
	$('map_marker_line').setAttribute('className', 'map_marker_line_' + to); // IE workaround
	$('map_marker_line').setAttribute('class',     'map_marker_line_' + to);
	$('map_marker_text').innerHTML = to_name;
}