function mt( u, s, c ) { 
  var d = "gru" + "vex.com"; 
  var a_t = "@"; 
  var a = u + a_t + d; 

  document.write("<" + "a");
  document.write(" " + "href=\"" + "ma");
  document.write("il" + "to:" + a);
  if (null != s)
    document.write("?Subject=" + s);
  document.write("\">");
  if (null == c)
    document.write(a);
  else if ( c != "no_close")
    document.write(c);
  if (c != "no_close")
    document.write("</a>");
}