onclick checkbox form submission

[marynorn]

I have a little checkbox where people can opt out of receiving a paper version of our newsletter. Using a submit button seems like overkill for one tiny little checkbox. Is there a javascript value that would POST onclick?

 <?php 
if ($tenant->isLoggedIn()) 
{ 
    $tenantDetails = $tenant->getTenantDetails();
?><?php } ?>

  <form id="news_out" name="news_out" method="post" action="news_ty.php">

  <p>
    <input type="hidden" name="name" id="name" value="<?php echo $tenantDetails['tenantName'] ?>" />
    <input name="email" type="hidden" value="<?php echo $_SESSION['tenantEmail'] ?>" />
  </p>

  <p>Don't send me a paper copy, I want my Newsletter e-mailed to me. 
     <input <?php if (!$tenant->isLoggedIn()) {echo 'disabled';} ?> type="checkbox" name="newsletter" id="newsletter" />
  </p>
    </form>

[thetestingsite]

You could try the following (not tested):

 <?php 
if ($tenant->isLoggedIn()) 
{ 
    $tenantDetails = $tenant->getTenantDetails();
?><?php } ?>

  <form id="news_out" name="news_out" method="post" action="news_ty.php">

  <p>
    <input type="hidden" name="name" id="name" value="<?php echo $tenantDetails['tenantName'] ?>" />
    <input name="email" type="hidden" value="<?php echo $_SESSION['tenantEmail'] ?>" />
  </p>

  <p>Don't send me a paper copy, I want my Newsletter e-mailed to me. 
     <input <?php if (!$tenant->isLoggedIn()) {echo 'disabled';} ?> type="checkbox" name="newsletter" id="newsletter" onclick="this.form.submit();" />
  </p>
    </form>

Hope this helps.