Internet explorer says Object doesn't support this property or method

Question

This line is 79:

window.addEvent(\'domready\', function(){     
    mySlide = new Fx.Slide(\'advert\');
    mySlide.hide();
});

It also doe

Answer 1

Just a quick addition to the conversation.

In some cases (video.js / bigvideo.js come to mind) you need to run modernizr.js as your first script before jQuery or jQuery UI. Clears things right up.

Answer 2

(MooTools)

My code was something like this:

var cancel; 
//... bla bla
cancel = form.elements[i]; //cancel is now a <button>; no Id, unique on the page
cancel.addEvent('click', function(e) {...});

And I was getting the OP's exception on cancel.AddEvent(). What fixed it for me was rewriting that as $(cancel).addEvent().

What a horrible browser.

Answer 3

This can also happen if you don't have a comma in a list of variables, like the 'f' variable below :

var a = 'aaaa',
    f = 'ffff'
    b = someObject.attribute;

Answer 4

This error normally comes with IE if you try to assign a invalid value for a style property. If you are using IE8 and you have enabled enable javascript debugging under tools->options->advanced, then you can try to debug it and see which property assignment is throwing this error and then try to rectify this.

Answer 5

Do you have jQuery/mooTools included before this particular line in the file? It looks to me like you've included a plugin or other javascript before including the framework that it relies on. I assume you're also using jQuery in noConflict() mode since you're using both jQuery and mooTools.

Answer 6

+1 for the earlier answer about variable names. This in IE8:

title = button.attr('title'); <-- Object doesnt support this method

$title = button.attr('title'); <-- OK!