javascript - Click() works in IE but not Firefox

Question

I have code which is trivial but only works in IE not Firefox.

$(document).ready(function(){
    $('li#first').click();
});

I have also tried:

document.getElementById('first').click();

But that doesn't work either.

Is this an IE bug/feature or is click() not supported in the other browsers?

Responding to comments:

1. There is a single element with ID first, no more.
2. It is an onclick on the list element that expands the element and moves focus on a Google Map element.
3. Running the code in patrick's response (adding another click event to the element) produced some interesting behaviour. When running $('li#first').click() only the new event fired, but physically clicking the element with the mouse fired both (new and original).

Thanks in advance.

Answer 1

Firefox does not support click().

Running document.getElementById('first').click() returns the following error click is not a function

So I added a snippet of code to add click() functionality to every element. This code was found after a painful series of google searches resulting in this thread.

The snippet is below and needs to be included just once on the page:

HTMLElement.prototype.click = function() {
   var evt = this.ownerDocument.createEvent('MouseEvents');
   evt.initMouseEvent('click', true, true, this.ownerDocument.defaultView, 1, 0, 0, 0, 0, false, false, false, false, 0, null);
   this.dispatchEvent(evt);
}