I have often used, and seen recommended, dom-access structures like this for adding content to pages dynamically:
loader = document.createElement('script');
loader.src = "myurl.js";
document.getElementsByTagName('head')[0].appendChild(loader);
Now, by chance, I find that this works in Google chrome:
document.head.appendChild(loader);
A little more investigation, and I find that this works, apparently cross-browser:
document.body.appendChild(loader);
So my primary question is: are there any reasons why I shouldn’t attach elements to the BODY like this?
Also, do you think document.head will become more widely supported?
I can’t see any reason why it would matter in practice whether you insert your
<script>elements into the<head>or the<body>element. In theory, I guess it’s nice to have the runtime DOM resemble the would-be static one.As for
document.head, it’s part of HTML5 and apparently already implemented in the latest builds of all major browsers (see http://www.whatwg.org/specs/web-apps/current-work/multipage/dom.html#dom-document-head).