random
fade
h.slide
v.slide
random fade
vert.tl
vert.tr
vert.bl
vert.br
fade.left
fade.right
alt.left
alt.right
blinds.left
blinds.right   
horz.tl
horz.tr
horz.bl
horz.br
fade.top
fade.bottom
alt.top
alt.bottom
blinds.top
blinds.bottom
diag.fade
diag.exp
rev.diag.fade
rev.diag.exp
block.fade
block.exp
block.drop
spiral.in
spiral.out
block.top.zz
block.bottom.zz
block.left.zz
block.right.zz
block.top
block.bottom
block.left
block.right