JavaScript: the event object

Question

Why can the event object have no properties? I get this error in Mozilla Firefox while in IE and Opera all is well.

Please, follow this link to see the problem: here was the link

NickFitz · Accepted Answer · 2009-12-03 14:22:40Z

3

EDIT (now that a link is available): the problem is that you are attaching handleMove as the event handler which receives the event argument, then calling documentRelative and attempting to get the event object in there - but you never pass the event argument along.

Change lines 54 and 55 as follows:

function handleMove(e) {
    var documRelative = documentRelative(e);

or move

var e = (e) ? e : window.event;

from documentRelative to the start of handleMove and pass it into documentRelative.

edited Dec 3, 2009 at 14:22

answered Dec 3, 2009 at 14:13

NickFitz

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4 Comments

KarlX Over a year ago

I added a link to the page with the script.

KarlX Over a year ago

I changed (as you can see on the page) lines 54 and 55 but there's no affect.

NickFitz Over a year ago

You are also calling documentRelative from elementRelative; you'll have to pass the event object through there, too. I would suggest installing the Firebug extension and using its JS debugger to track these things down.

KarlX Over a year ago

Thank you very much. It works now. Also, now I understand this whole pass-event thing.

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