jquery - can I detect once all content is loaded?
Ideally the answer would be $(function(){ }) or window.onload = function(){} that fires after all the DOM contents are loaded. But I guess, the ads on your page starts loading asynchronously after the DOM load. 
So, assuming you know the number of 'ads' on your page (you said you are loading them piece by piece), my advise would be to increment a counter on each successful 'ad' load. When that counter reaches the total number of ads, you fire a 'all_adv_loaded' function.
I have a page with a lot of ads being loaded in piece by piece.
I need to position an element relative to overall page height, which is changing during load, because of ads being added.
Question: Is there a jquery event or similar to detect, when all elements are loaded? I'm currently "waiting" with setTimeout, but this is far from nice.
An idle event would be nice, which fires once after pageload if no new http requests are made for xyz secs.