Google Map Custom Marker Image Not Rendering

I have this page where I have one custom marker rend开发者_运维知识库ering, and another not rendering. Would anyone know why? The http://www.comehike.com/img/smile.gif does not show up and the car image does show up.

The page url with the map (towards the bottom) is here:

http://www.comehike.com/hikes/hike_carpool.php?hike_id=125

Thanks, Alex

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Ok it was something stupid I was doing. Never mind :)