Function image2Mass( label, ra, dec, npix, band )

Description:
Displays a cutout image from the 2MASS image server around a given point.
Parameters:
label (String)
viewer identification label
ra (floating point)
right ascension in radians
dec (floating point)
declination in radians
npix (integer)
number of pixels in X and Y dimensions (0.4 arcsec square)
band (char)
band identifier: one of 'H', 'J' or 'K'
Return Value (String):
short log message
Signature:
java.lang.String image2Mass(java.lang.String, double, double, int, char)