Google Maps v3: Load KML Layer...

map.js

/* Show map until loaded?
http://groups.google.com/group/google-maps-js-api-v3/msg/a9dda851790a6c54
*/

function showCrossHair(divId) {
	var mmap = document.getElementById(divId);
	var div = document.createElement('div');
	div.id = 'crossHair';
	div.style.position = 'absolute';
	div.style.padding = '0';
	div.style.marginLeft = '-10px';
	div.style.marginTop = '-10px';
	div.style.left = '50%';
	div.style.top = '50%';
	div.style.zIndex = '5000';
	div.innerHTML = '<img src="images/crosshair.gif">';
	div.innerHTML = div.innerHTML;
	crossHairDiv = div;
	mmap.appendChild(div);
};

function initialize() {
	
	var myLatlng = new google.maps.LatLng(42.0737, -122.603);
	
	var myOptions = {
		zoom: 8,
		center: myLatlng,
		mapTypeId: google.maps.MapTypeId.TERRAIN
	}
	
	var map = new google.maps.Map(document.getElementById('map'), myOptions);
	
	showCrossHair('map');
	
	var l1 = new google.maps.KmlLayer('http://pipes.yahoo.com/pipes/pipe.run?_id=6f14a71211b7bb457b2ea68e0a3f7d86&_render=kml&glId=0SoN98QN3nRbQAxn6YLoXTP5qpqv8PYxu&mode=latestOnly'); // , { preserveViewport: true }
	l1.setMap(map);
	
	google.maps.event.addListenerOnce(l1, 'defaultviewport_changed', function() {
		center = l1.getDefaultViewport().getCenter();
		map.panTo(center);
	});
	
};