Function sdssShowCutout( ra, dec )

Description:
Displays a colour cutout image of a default size from the SDSS around a given sky position. The displayed image is 128 pixels square - a pixel is 0.4arcsec.
Parameters:
ra (floating point)
Right Ascension in degrees
dec (floating point)
Declination in degrees
Return Value (String):
short log message
Signature:
String sdssShowCutout(double, double)