You will get this error in IE when the object you are trying to
manipulate in Prototype has not been "extended" yet[1]. You can work
around this by using the $ function to get and extend the object
before attempting to manipulate it.
var elm = $(elm);
if (!!elm){
//your code here
}
Walter
1. http://api.prototypejs.org/dom/element.html#extend-class_method
On Nov 26, 2009, at 5:52 AM, Carsten wrote:
>> Are you certain that the object has actually been created in the DOM
>> when you call this?
>
> "Element" is the Element-object from the prototype library. The
> library has been included and other objects like Ajax are present.
>
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