changing the data on a product page
 

I have a product page where I want to have a link to more info about ingredients. For example: I want to have on each product page two links One to the main product page, one to a page with a similar layout only with different body copy(the listing of ingredients). How would I do this with .tpl? In PHP my thought would be the have the page product.php?id=1 point to the main page and product.php?id=2 point to the ingredients page.. All done with a conditional if id =1 then include this main copy elseif id = 2 then include the ingredient copy. How can I do this in the product.tpl file?

thanks

Can't you use extra fields for this?

yeah that is the plan but I cannot figure out the link interaction.

basically I will have the product.tpl include a
{if page= ingredients}
{products.param01}
{/if}
{if page=main}
{products.description}
{/if}

but my question is how to pass the page variable,
example:
linkto ingredientspage

can I do that?
how woudl I make it work within the .tpl framework.

thanks