Basic help - email not clickable...

[Studio381]

while ($row=mysql_fetch_array($result))
{
extract ($row);
echo "<div id='A1r1'>Pair name</div>";
echo "<div id='A2r1'></div>";
echo "<div id='A3r1'>$AName</div>";

echo "<div id ='A1r2'>email address</div>";
echo "<div id='A2r2'></div>";
echo "<div id ='A3r2'><a href=\"mailto:$AEmail\">$AEmail</a></div>";

I have the above code which displays the email address correctly but the email address is not clickable.
What did I get wrong?

Thanks,
John.