How to tell if the page displayed in the Browser widget has scrolled

[hh]

The following works for me.

Write this code into a variable or a field:

window.onscroll = function() {
if (window.innerHeight + window.pageYOffset >=
document.body.offsetHeight) liveCode.jsNotify('I am at the bottom');
};

(a) Then script:
do <variableOrField> in widget "browser" if you can't control the htmltext.

or

(b) If you can control the htmltext then add the code above enclosed in
<script></script> tags right before </body>.

Set (another) javascriptHandler of the widget to "jsNotify" and script in
the widget or card, for example:

on jsNotify v
  put the seconds && v into fld "info"
end jsNotify

Don't use an alert here: You will also get the alert when you scroll a little
bit up from the bottom. This small indeterminate region is also influenced by
the horizontal scrollbar of the browser widget (which you can't control).

Related:
http://forums.livecode.com/viewtopic.php?p=152156#p152156
http://forums.livecode.com/viewtopic.php?p=156745#p156745

p.s. Answering is easier in the forum, especially if your questions become
more complicated (as soon as the browser widget has won you over).