calling fancybox gallery with other link

Question

I have quite unique situation. Here is my scenario: 4 thumbnails linking to the gallery + 1 medium image (pointing to the same source as first thumbnail). I would like to open the same gallery by clicking on the medium image, but when I link them with "rel" attribute I have the first picture twice in the loop (5 big images in the loop). Is there a way to call specified fancybox gallery within external link? That way I could trigger click function on the medium image and still have only 4 big images in the loop. Please help, I cannot find solution for this.

UPDATE

here is my html

<div class="details_gallery">
 <a href="max/1.jpg" class="fancybox"><img src="mid/1.jpg" /></a>
 <div class="details_gallery_min">
  <a rel="details" href="max/1.jpg" class="fancybox"><img src="min/1.jpg" alt="" /></a>
  <a rel="details" href="max/2.jpg" class="fancybox"><img src="min/2.jpg" alt="" /></a>
  <a rel="details" href="max/3.jpg" class="fancybox"><img src="min/3.jpg" alt="" /></a>
  <a rel="details" href="max/4.jpg" class="fancybox"><img src="min/4.jpg" alt="" /></a>
 </div>
</div> 

I want to trigger the "details" gallery when clicking on the "mid" image...

Answer 1

What I would do is to modify the link of the "mid" image to trigger the gallery onclick without being part of the gallery itself like:

<a href="max/1.jpg" onclick="$('a.fancybox').eq(0).trigger('click'); return false;"><img src="mid/1.jpg" alt="mid image" /></a>

the .eq() method ensures that the gallery starts from the first image because otherwise it would start from the last element bound to fancybox. You could specify to start from another element of the gallery though.