function display(lnk,usr,dom) {
     if (lnk.length>0) { document.write(lnk); }
     else { document.write( usr + "@" + dom ); }
   }
   function email(usr) {
     dom = "npd.com.au";
     lnk = "";
     anc = "ref='mailto:";
     document.write("<a" + " h" + anc + usr + "@" + dom + "' title='");
     display(lnk,usr,dom);
     document.write("'>");
     display(lnk,usr,dom);
     document.write("</a>"); 
   }