Convert Degrees Minutes Seconds to Decimal Degrees
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(90 * 1000000)) { alert(' Degrees Latitude must be in the range of -90 to 90. '); form10.dlat.value = ''; form10.dlat.value=''; form10.mlat.value=''; } "> = (60 * 1000000)) { alert(' Minutes Latitude must be in the range of 0 to 59. '); form10.mlat.value=''; form10.slat.value=''; } ">  (59.99999999 * 1000000)) { alert(' Minutes Latitude must be 0 or greater \n and less than 60. '); form10.slat.value=''; } ">
(180 * 1000000)) { alert(' Degrees Longitude must be in the range of -180 to 180. '); form10.dlon.value=''; form10.mlon.value='';} "> = (60 * 1000000)) { alert(' Minutes Longitude must be in the range of 0 to 59. '); form10.mlon.value=''; form10.slon.value=''; } ">  (59.99999999 * 1000000)) { alert(' Minutes Latitude must be 0 or greater \n and less than 60. '); form10.slon.value=''; } ">
   
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