Invalid Argument in IE 8

[vbismee]

Hello, I ran across a problem in one of the plugins for JQuery, however I am posting it in here because I do not think it is a problem with the plugin.

If you run the project in IE 8 you get an invalid aggument error. The error is located on line 835 - "style.left = ret

0;" in the jquery-1.3.2.js file.

The demo is located here: ​http://www.ovalpixels.com/bgImageTransition/

Plugin Located here: ​http://plugins.jquery.com/project/bgImageTransition

If you run the webpage in IE 7 compatibility mode it works fine. It also works fine in IE 7, Firefox, Chrome, and Safari.

I was wondering if there is anything I can do to fix this.

Thank you, Jeff

[dmethvin]

You can use the IE8 debugger to look up the call stack to see that it's dying when the plugin does this:

   helperElement.css('zIndex', settings.zindex);

the value of settings.zindex}} is {{{NaN because the plugin tries to parse a number and the value of this.css("zIndex") is "auto". That is a legal value according to the W3C:

​http://www.w3.org/TR/CSS2/visuren.html#z-index

I don't see a core jQuery bug here, it's returning the css value correctly and the plugin is not anticipating the value it gets.