function build_contact( username, hostname ) {
	var domain = ".com";
	var atsign = "@";
	return username + atsign + hostname + domain;
}
function generate_contact( username, hostname ) {
	document.write( build_contact( username, hostname ) );
}
function generate_address( username, hostname ) {
	var addr = build_contact( username, hostname );
	document.write("<" + "a" + " " + "href=" + "mail" + "to:" + addr + ">" + addr + "<\/a>");
}