The direction in which the image should tend to slide. Legal values are
\fIrandom\fP (meaning pick one), \fIup\fP, \fIleft\fP, \fIright\fP,
\fIdown\fP, \fIupleft\fP, \fIdownleft\fP, \fIupright\fP, \fIdownright\fP,
The direction in which the image should tend to slide. Legal values are
\fIrandom\fP (meaning pick one), \fIup\fP, \fIleft\fP, \fIright\fP,
\fIdown\fP, \fIupleft\fP, \fIdownleft\fP, \fIupright\fP, \fIdownright\fP,