"Template" class: Simple question

Hello, I have a couple classes that generate navigation and a few other dynamic xHTML template-based things... What is standard practice for calling your template classes? In other words: Is it good practice to create the class object for every page view, or is there a better way to cache the object? I am using PHP 4.x. Any good tips and/or tutorials out there that cover this type of thing? Basically I am trying to get away from using includes and/or simple function calls. Sorry if silly question... I am kinda new to classes and how best to use them. TIA! Cheers, Micky -- Wishlists: <http://snipurl.com/1gqpj> Switch: <http://browsehappy.com/> BCC?: <http://snipurl.com/w6f8> My: <http://del.icio.us/mhulse>