function writeto(to,domaine)
{
	switch (domaine)
	{
	  case 'fai' :
	     sld='wanadoo.fr';
	   break;
	  default:
		  sld=domaine; 
	  break;
	} 
  document.write('<a href="&#109;a&#105;&#108;&#116;&#111;&#58;' + to + '&#64' + sld + '" class="writeto">');
  document.write(''+ to +'&#64'+ sld +'</a>');
}