Calculating Moon Azimuth

Hello,

If I have a point on earth with with specific Lat and Long. And if I
have the Lat and Long of the moon for specific time. How can I get the
Azimuth between the point on earth and the moon? I'm trying to draw the
earth in circle and show the moon location with respect to the point on
earth for a specific time. Is the Azimuth what i really need?

N
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W ------- E
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| O moon
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I'm not expert on this subject but I have program that gives me the
current lat and long of the moon at specific time but I do not know how
to convert this location to degrees where i can plot it with respect to
the observer lat and long. Any formulas or examples is greatly
appreciated.


Thanks for your help