Hi Chris,

That's a great question - thanks for asking it on the forum. [sorry about the delay in responding, I took a few days off].

OK, so let's look at what you're trying to achieve.

You're retrieving one parameter (pagetype) which can only be one value at a time. You then want to compare it to a list of items (frontpage, shop.cart, etc), and you want the module to be included if it doesn't equal any of them.

The way JomGenius does this is that it compares the item on the left (the page type in this case) to each of the items on the right, in turn, using the comparison operator that you specified ("not =" in this case).

You might ask: "so does it do an AND or an OR?" (i.e. does it check for "pagetype = frontpage OR pagetype = shop.cart OR ...", or does it check for "pagetype = frontpage AND pagetype = shop.cart AND ...".

The answer is: by default it does an "OR".

More precisely, it does an "any of" unless you specify "all of" or "none of".

So, saying "pagetype not = frontpage, shop.cart" is equivalent to "pagetype not = any of frontpage, shop.cart", and this expands internally to "pagetype not = frontpage OR pagetype not = shop.cart OR ...".

Now if you think about it, this isn't going to work. If the pagetype actually was frontpage, you would want the statement to return false. But, "pagetype not = shop.cart" would be true, so the whole thing would return "true".

What you really want is that the page type is NONE of the items in the list.

So the correct syntax would be this:

if ( $vm->check( "pagetype = none of frontpage, shop.cart, checkout.index#1, checkout.index#2, checkout.index#3, checkout.index#4, checkout.thankyou" ) ) return advert1;

Hope that makes sense. If not, read it several times slowly!

Cheers,
Stephen