I used the below script for google API map on my page. I want to make it black and white. Can I please get some help on making that?

thanks.


Code:
function load() {
var locMap = {center: new google.maps.LatLng(45.544167, -122.524607), zoom: 14,
mapTypeId: google.maps.MapTypeId.ROADMAP, streetViewControl: false,	 
mapTypeControl: false};
map = new google.maps.Map(document.getElementById("map"), locMap);
marker = new google.maps.Marker
({position: new google.maps.LatLng(45.544167, -122.524607), map: map});}