String.prototype.printAddr = 
function (_hamper,_prefix,_postfix,_face)
{
  _hamper=
  _prefix+
  "@"+
  this+
  (_postfix || '')
  document.write((_face||_hamper).link("mailto:"+_hamper));
}

function selColor(my_id){
var s = document.getElementById(my_id).style;
s.background = (s.background != '#f4f4f4') ? '#f4f4f4': 'White';
}
// JavaScript Document