Clientarea page button not working

[kaspert]

I'm creating a module that gives you the option to link subdomains to your server, but one thing is not working.

I want to add a button to my client area output, that calls a function in my module. Can anybody tell me why this is not working?

 

Clientarea.tpl:

<form action="clientarea.php" method="GET">
<input type="hidden" name="id" value="{$serviceid}" />
<input type="hidden" name="modop" value="custom" />
<input type="hidden" name="a" value="reboot" />
<input type="submit" value="Reboot" />
</form>

 

CDsrv.tpl:

function CDsrv_clientarea($vars) {
	return array(
       'pagetitle' => 'Add subdomain',
       'breadcrumb' => array('index.php?m=CDsrv'=>'Add subdomain'),
       'templatefile' => 'CDsrv',
       'requirelogin' => true,
	'vars' => array(
           'domains' => $vars['domains'],
       ),
   );

}
function CDsrv_reboot($params) { 
logModuleCall("CDsrv","Activate","Test2","true","","");
}; 
function CDsrv_ClientAreaCustomButtonArray() { 
   $buttonarray = array( 
       "reboot" => "reboot", 
   ); 
logModuleCall("CDsrv","Activate","Test1","true","","");
   return $buttonarray; 
}  
function CDsrv_AdminCustomButtonArray()
{
    $buttonarray = array( 
       "reboot" => "reboot", 
   ); 
   return $buttonarray; 
}