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The question might make you smile but how does this website keep a trace of what the previous image is? I mean, the central image is probably picked at random as well as the next image but the previous image has to correspond with the one a user has just evaluated. Is this done via session variables? If so, how are ids chained and is there a limit to how much information could be stored?
P.S: Also just thought of cookies. Would be interested to hear about what strategies are possible.
If you had taken a look at the sources, there’s a hidden form field
<input type="hidden" name="rating[voted_on_id]" value="17915927" id="rating_voted_on_id" class="hidden"/>My bet would be that this is the ID you’re looking for, as the other two are also stored this way by the looks of it…