auto complete issue with non-Mozilla browsers

Hi,
Playing with auto complete in Firefox is fun all the time , but this is not going to be same in Others Browsers(IE & Safari),
after Googling for many days i came up with a pleasant solution.

Rails2.0: auto_complete is now a plugin (it’s not in the core anymore), you will install it before using it:
script/plugin install auto_complete

Somewhere in your views you’ll want code somewhat like the following.
<%= text_field_with_auto_complete :article, :contains, { :size => 15 }, :skip_style => true %>

I specified a size for the text area with the :size => 15 values in the hash. I also included :skip_style => true which keeps the helper from automatically inlining CSS styles into the page.

and now the major issue i faced with IE and Safari browsers are :
Q. Up, Down arrow keys are not working for auto complete in non-mozilla browsers when drop down list appears
The solution is ..
This is due to a bug in Scriptaculous. At the time of writing you will need to apply the following patch that will fix it:
in controls.js around line 86 you will observe these lines
Element.hide(this.update);
Event.observe(this.element, 'blur', this.onBlur.bindAsEventListener(this));
Event.observe(this.element, 'keydown', this.onKeyPress.bindAsEventListener(this));
},

and now you modify above lines with the following code of lines :

Element.hide(this.update);
Event.observe(this.element, 'blur', this.onBlur.bindAsEventListener(this));
Event.observe(this.element, 'keypress', this.onKeyPress.bindAsEventListener(this));
// Observe keydown for non-Mozilla browsers per http://dev.rubyonrails.org/ticket/10126
if (Prototype.Browser.Gecko) {
Event.observe(this.element, 'keypress', this.onKeyPress.bindAsEventListener(this));
} else {
Event.observe(this.element, 'keydown', this.onKeyPress.bindAsEventListener(this));
}
},
and restart the server ,now the arrow keys will work in both IE and Safari browsers.