Quick reply hook

[virtus]

I am trying to make a "post a day" limit for a specific forum. here is the code.

PHP Code:

if($threadinfo["forumid"] == 51){

if(mktime(date("G"),date("i"),date("s"),date("n"),date("j"),date("Y")) < ($threadinfo["lastpost"] + 86400)){
     header('Location: http://www.example.com/');
}
} 


Obviously I will change the end result to an error.

It works exactly how I want ti to and I have this set under the newreply_start hook. However, this does not work for the quick reply, which I am assuming uses ajax, but have not been able to find a hook that triggers for it.

So, how can I have this code trigger when someone tries to just do a quick reply?

Are there any other options?

Thanks