markdalgleish/stellar.js — pull request #5 by malchata (2012-04-12 03:36:30+00:00)
Title: Fixed issue where parallax functionality was broken in IE7 and IE8. This...

... occurred when parallaxing elements were not given a left margin, which non-standards compliant browsers read as "auto" instead of "0px". This value would then be fed into parseInt. parseInt("0px") returns 0, whereas parseInt("auto") returns NaN.