function sec_mail()
{
  document.write("<a href=\"mailto:")
  document.write("a.hoetger")
  document.write("@")
  document.write("weser-leine-brennstoffe.de\">")
  document.write("a.hoetger")
  document.write("@")
  document.write("weser-leine-brennstoffe.de")
  document.write("<\/a>")
}