Do I have to create a thumb file for each picture?
<p>I have a website where there's a gallery, in this gallery there are thumbs that when clicked take you to an ad from linkbucks. Then when you wait for 5 secs then you can see the picture in its real size. The problem is, the user can skip this ad by just clicking on the thumb with the right button of the mouse, then select "Show picture" or something like that.
How can I solve this without having to make a thumb image file for each picture?</p>

<p>Note: I need this solution to be in Javascript/Jquery or/and PHP.</p>
