How to disable some larger images?

Some of my products have larger images and some do not, is there any way that I can disable the larger image popup on some product information pages and not on others? I don't want customers to be able to click for a larger product image if one isn't available, I would also like to remove the "Larger Image" text from below the product image. Can you tell me if this is possible and how I would go about doing it if so? I tried doing a search on the forums but couldn't find anything relating to this. Many thanks :-)

https://www.zen-cart.com/tutorials/index.php?article=38
https://www.zen-cart.com/tutorials/index.php?article=39

Thanks Kobra, that has taken care of the "Larger Image" text, but the pictures are still clickable. Ideally I would like the picture to be clickable only if there is a larger image to display. Not all of the products I am selling have larger images associated with them, so when the user clicks on one of those products they currently just get the same medium image. Is it possible to make only products I have _LRG images for clickable?

Thanks again.

Not without rewriting some code, no.

Anytime you want to have Zencart perform one of its basic functions only 'some of the time', you're going to have to do some programming.

Would it be easier to generate larger images for those products that don't have them ?

As I am dropshipping I can only work with the images I am given. If I generate larger images from the main product image won't I end up with fuzzy larger images?

Correct. What size are the images you have? Are they larger than other products' small/medium images? If so, you could make new medium images for them that match other products' image sizes.