PROCEDURE: label_foot_ticks PURPOSE: Keeps track of parasites on the pedal area of the body. Adds timeticks and text labels to a path plotted on a map of the earth. The latitudes and longitudes, as well as the corresponding time array, must be passed through keywords. This procedure was written for plot_fa_crossing.pro. KEYWORDS: TIME_ARRAY The time array corresponding to the FLAT and FLNG arrays. LATITUDE The latitude array. LONGITUDE The longitude array. LATLIM The absolute value of lattitude above which (below in S. hem.) to confine timeticks on the plot. Default is 45 degrees. INTERVAL The interval in seconds on which ticks are marked. Default is 300 sec. COLOR The color of the labels CREATED: BY J.Rauchleiba DATE 97-9-12