function generate_address(username, txt) {
	var atsign = "@";
	var hostname = "bluedogtraining.com.au";
	var addr = username + atsign + hostname;
	if (txt.lenght==0) txt = addr;
		document.write('<' + 'a' + ' ' + 'href=\"' + 'mail' + 'to:' + addr + '\">' + txt + '</a>');
}