Hover under the transparent image

Once again, I encounter the following problem when working with html. On top of the content is an image with transparent or translucent (both .gif and .png ) areas. The content is visible through these areas, but the user cannot use it (highlight text, click links, etc.).

Does anyone of the French experts know how to solve this problem? The option of cutting the original image into a bunch of small ones does not offer - we will not be weak :)

UPD:
Attach an image:


Here img with id = "foreground" - the very image that does not allow to select text and click links behind it.