function escramble(who){
  var a,b,c,d,e,f,g,h,i,k,m,n
  a='<a href=\"mai'
  b='info'
  k='sales'
  m='abuse'
  n='instructeurs'
  c='\">'
  a+='lto:'
  b+='@'
  k+='@'
  m+='@'
  n+='@'
  e='<\/a>'
  f=''
  b+='bhv-friesland.nl'
  k+='bhv-friesland.nl'
  m+='bhv-friesland.nl'
  n+='bhv-friesland.nl'
  g='<img src=\"'
  h=''
  i='\" alt="" border="0">'

  if (who == 1){
    if (f) d=f
    else if (h) d=g+h+i
    else d=b
    document.write(a+b+c+d+e)
  }
  if (who == 2){
    if (f) d=f
    else if (h) d=g+h+i
    else d=k
    document.write(a+k+c+d+e)
  }
  if (who == 3){
    if (f) d=f
    else if (h) d=g+h+i
    else d=m
    document.write(a+m+c+d+e)
  }
  if (who == 4){
    if (f) d=f
    else if (h) d=g+h+i
    else d=n
    document.write(a+n+c+d+e)
  }
}