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    <p>I've wrestled with this a couple of times, and my usual reason for needing some sort of onload event triggering is to be able to interact with the HTML DOM and have getElementById, getElementsByTagName, or various other DOM selectors, return something other than nothing.</p> <p>Once again, I'm not sure of the exact problem you are trying to solve, but if you <em>must</em> use some sort of onload, and it's because of DOM traversal of some kind, you can cheat a bit with the following sort of code:</p> <pre><code>window.onload = pageChecker; function pageChecker() { // Onload has fired, but we don't trust it. // Check to see if our deepest nested element can be found var testElement = document.getElementById("importantElement"); if ( !testElement ) { // Try again in a bit, adjust timeout to what your users // can tolerate setTimeout(pageChecker, 50); } else { // // ... the element exists, run important code below ... // } } </code></pre>
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    1. POwindow.onload equivalent for Ajax applications?
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    1. USjeremyosborne
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    1. COThanks, its an interesting trick, but my problem is a bit different - I need to know when the page "looks ready", i.e. from the user perspective. What makes me think that it is possible, at least in theory, is the fact that the browser does know somehow when it is finished - the browser loading indication stops when the page looks ready.
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      1. USDemiurg
    2. COI can see what you're getting at. It is difficult to know when the page really is loaded, unless you know exactly how many images you have, and you track each image that loads with an onload event on each image. In fact, since Image loading is usually the final thing that determines when a page is user-visual-ready, in the current state of the browsers, you just might have to know: how many images are on the page, have all the images loaded? If yes, check that the final element on the page is reachable (some hacksih getElementById). If yes, then page could assume to be loaded.
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    3. COBy the way, ajax types of requests (XMLHttpRequest and JSONP like solutions) triggered after a page is really loaded can cause the browser's page load spinner to begin spinning again. I'd think of the state of the page load as more of a binary state: it's either loading something or it's not. And on most AJAX pages, as Nick Bastin said, it's very difficult to say when the page has finished loading. GMail and Yahoo mail, for example, never really stop firing requests and as such it makes the "page loader has stopped spinning, page is loaded" question hard to answer, at least philosophically.
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

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