Help with calling a template from a function

[GC-UK]

Sorry if this is the wrong place, or obvious, but it's been driving me mad

I want to be able to call a vb template from inside a function. But I cant get it to work. If I have this in a file alone, it works fine:

PHP Code:

eval('print_output("' . fetch_template("FORUMHOME") . '");'); 


But if I put this instead

PHP Code:

function testing()
{
eval('print_output("' . fetch_template("FORUMHOME") . '");');
}

testing(); 


The template comes out completely wrong. ALl the images, style etc. is missing, and only part of the template is drawn.

I cant work out what is wrong, any ideas? I'm guessing something more needs to be included in the function, but I cant find what that is.

Thanks a lot in advance for the help. I'm sure it's obvious, but I just cant work it out or find the answer anywhere else either