jQuery and weird links in IE7

I'm working on a website and part of it's code (jQuery related) was written by another programmer. Now in IE7 some links look like this (at least that's what Developer Tools shows me):

<a href="#" id="id1" jQuery1284452043889="13">some link</a>
<a href="#" id="id2" jQuery1284452043889="14">some link</a>

I'm not good at JS, so could you please tell me what those additional jQuery attributes mean? What are they needed for?

T开发者_开发知识库hank you!

Its a jQuery Expando attribute.

This stackoverflow answer explains it quite nicely

Thats simply jQuery making its presence felt, nothing you as a regular developer should either worry or care about.