Best way to register a variable.

[Seductor]

Hi there,

I want to pass two variables to the Forumhome template. I'm doing a Youtube Slider:
http://pastebin.com/pCA6MpAx

My variables are two arrays, $youtubeimg and $youtubelink. I have created a plugin hooked to the Forumhome template already.

Which would be the better way to pass this variables then? I have tried this in my plugin, for example:

vB_Template::preRegister('FORUMHOME',array('youtubeimg' => $youtubeimg));

But it didn't work. How could do it?

Regards.