Hi all,
I'm sure I'm missing something obvious. I add prototype.js and my
custom js file in the head:
<script src="prototype.js" type="text/javascript"></script>
<script src="my_js_file.js" type="text/javascript"></script>
my_js_file.js looks like this:
Event.observe(window, 'load', loadTasks, false);
function loadTasks() {
var foo = $('content_menu').cumulativeOffset()[0];
alert(foo);
}
And in my html I have
<div id="content_menu">blah</div>
But when I attempt to load this page, I get a script error. I use
Firebug for debugging, and it tells me:
"$('content_menu').cumulativeOffset is not a function".
If I substitute cumulativeOffset() for something else, say,
getHeight() or getWidth(), then it works. I've tried stripping the js
and the HTML down to the absolute minimum, but it still gives the same
error. (In the original file, there are a BUNCH of other included
scripts that do various things on the page, and the HTML is a few
kilobytes in size.)
So... I'm missing something blindingly obvious.... right?
//Plankmeister
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