[jQuery] error - name.match is not a function

[Ettiene]

On line 782 of jquery-1.3.1.js this line of code makes this error:
name.match is not a function.

On line 782 there is:
if ( name.match( /float/i ) )

I'm trying to write a "news scroller" This is my code:

$(document).ready(function() {
                        function scroller() {
                                $("div#newsticker ul li").animate(
                                        $(this).css("left", "-200px"),
                                        "normal",
                                        "linear",
                                        function(){
                                                $(this).css("left", "200px");
                                                scroller();
                                        }
                                );
                        }
                        scroller();
                });

Any help would be greatly appreciated.