% interface=en output=pdftex
% Time-stamp: <Samstag, 22 April 2006 21:53:30; test.tex>
%
\setupinteraction[state=start]
\setupcolors[state=start]

\starttext

\tracefieldstrue

\switchtobodyfont[96pt]

\def\FS#1{\framed[width=4cm,height=4cm,strut=no]{\red\bf#1}}%

\definesymbol [empty]   []

\definesymbol [one]     [\FS{1}]
\definesymbol [two]     [\FS{2}]
\definesymbol [three]   [\FS{3}]
\definesymbol [four]    [\FS{4}]
\definesymbol [five]    [\FS{5}]


\setupfield[interaction]
  [width=4cm,height=4cm,
%   frame=off,
   framecolor=blue,
   offset=none,% default offset causes different positioning of walk button and fieldstack
   clickin=JS(Walk_Field{sequence})]

\definefield[Walk][check][interaction][empty][empty]


\definefieldstack[sequence]
  [one,two,three,four,five]
  [frame=off,
   offset=none,% default offset causes different positioning of walk button and fieldstack
   clickin=JS(Walk_Field{sequence})]


\defineproperty[interaction][layer][title=walkfield, state=start]


\vbox{\forgetall
\nointerlineskip\smashedvbox{\fieldstack[sequence]}%
%
\startproperty[interaction]%
\nointerlineskip\field[Walk]
\stopproperty%
}

\blank[2cm]
\showfields

\stoptext


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