[Mediawiki-l] Adding a Message to the Account Creation Form

[JuWi]

Hi all,

I'd appreciate your help: I'd like to add a message to the account 
creation form. The message contains an internal link, it should appear 
right above the submit button.

The hook I tried is $template->addInputItem, although no interaction is 
actually needed. The problem is that whatever way I try to output the 
message, the link appears as plain text.

This is what I did:
$wgHooks['UserCreateForm'][] = 'efAddTerms';
function efAddTerms (&$template) {
$template->addInputItem( 'terms', false, 'checkbox', 'Create-terms' );
return true;
}
Create-terms is the system-message containing the link.

Could someone please show me how to do this?

Thanks in advance
Mirko