[eluser]Geoffrey[/eluser]
Well first off, you're setting a variable of latlng but you're calling it as LatLng for the center.
I assume the body tag is <body onload="initialize()">
I don't see any html but I also assume there's an html element somewhere with an id of map_canvas?
<div id="map_canvas"></div>
and that you're calling the google map javascript correctly.