Planet13 - 2:31 pm on Nov 4, 2011 (gmt 0)

Hi there, Everyone:

Is there a tag of some kind that goes in the head content (or somewhere else) to tell google which is the main image of a web page (for an ecommerce product page)?

Our site just started using a javascript / css method of displaying images (so that it can enlarge images easily). The thing is, where it used to display the "main" image, it now displays a blank .gif file, and the other images are superimposed upon it, depending on what the user clicks.

(Hence, I can't put a tag in the img tag because it would tell google that the blank.gif file is the main image.)

So I would like to make it as simple as possible for google to know which image is the main image.

Thanks in advance.