You had said that it was 10 - 20 lines of code. The reason I posted my original comment is that many jquery abusers don't know about alternatives.

Why not just use a extremely well tested library that automatically gives you full browser support?

You have to justify why you use something additive, not why not to use it.

All for the equivalent price of one very small script file.

Not quite sure why the load time of the script file gets so much attention. It is hardly to real expense of jquery. Many, many, many jquery-crutch sites are horrendously inefficient because they think that the magic of chaining and the robust selector language comes for free. It does not -- it comes at an often significant expense.