+! or, if you prefer "xli" to "xv", like this: (but note that xli's "-delay"
+! option doesn't work in conjunction with "-onroot", so you need to add a
+! line for each image individually... "xv" is better in this respect.)
+!
+! default-n: xli -quiet -onroot -center -border black \
+! $HOME/bitmaps/pic1.jpg \n\
+! default-n: xli -quiet -onroot -center -border black \
+! $HOME/bitmaps/pic2.jpg \n\
+! default-n: xli -quiet -onroot -center -border black \
+! $HOME/bitmaps/pic3.jpg \n\
+!