% \nopdfcompression

\setupinteraction[state=start]

\setupfield
  [ShortLine]
  [label,frame,horizontal]
  [offset=5mm,
   height=fit]
  [height=2cm,
   width=3cm,
   align={lohi,middle}]
  [height=2cm,
   width=5cm,
   offset=overlay,
   style=\tttf,
   regionin=JS(Initialize_TeX_Key),
   afterkey=JS(Convert_TeX_Key),
   validate=JS(Convert_TeX_String)]

\definefield [Email] [line] [ShortLine] [] [ë]

\starttext

    \startTEXpage
        \field [Email] [your email]
    \stopTEXpage

\stoptext
