function email(name, domain, zone, text)
{
   var address = name + "\u0040" + domain + "." + zone;
   var url = "mailto:" + address;

   if( ! text )
   {
      text = address;
   }
   if (text == "img")
   {
   document.write("<a href=\"" + url + "\">");
   }
   else {
   document.write("<a href=\"" + url + "\">" + text + "</a>");
   }
}