function MOn(m) {
  document.getElementById('m'+m).style.cssText = "background: url(/i/07.gif) no-repeat top center;";
}

function MOff(m) {
  document.getElementById('m'+m).style.cssText = "";
}

String.prototype.printAddr = 
function (_hamper,_prefix,_postfix,_face)
{
  _hamper=
  _prefix+
  "@"+
  this+
  (_postfix || '')
  document.write((_face||_hamper).link("mailto:"+_hamper));
}