Toggling jumping?

Rails
1

I get the feeling I’m using toggle in a way that it wasn’t intended.
This works:

  <div id="show" style='display:none;'>
    <%= button_to_remote "Show", :complete =>

visual_effect( :toggle_appear, “show” ) +
visual_effect( :toggle_appear, “edit” ) +
visual_effect( :toggle_appear, “show_block” ) +
visual_effect( :toggle_appear, “edit_block” ) %>

  <div id="edit">
    <%= button_to_remote "Edit", :complete =>

visual_effect( :toggle_appear, “show” ) +
visual_effect( :toggle_appear, “edit” ) +
visual_effect( :toggle_appear, “show_block” ) +
visual_effect( :toggle_appear, “edit_block” ) %>

Show block
Edit block

But the buttons “jump” on the page, as to the blocks. Any idea how to
get one to just replace the other? I’ve tried setting delay to 0,
e.g. visual_effect( :toggle_appear, “show_block”, :delay => 0 )
without luck.

Many TIA,
Craig