function doEmail(pre, post)
{
  document.write(
  '<a href="mailto:' + pre + '@' + post + '">' 
    + pre + '@' + post +'</a>')
}

function doEmailDisp(pre, post, disp)
{
  document.write(
  '<a href="mailto:' + pre + '@' + post + '">' 
    + disp +'</a>')
}