Take original background position into account.

[lhunath]

When the background image's position isn't top-left, this plugin forces it to top-left + offset as soon as you start scrolling; which is never desired when a non-default position is set.

This plugin should figure out the position of the background before it sets it, and offset its own adjustments to the original position.

[lhunath]

Looks like the problem is when the original position is not a pixel value but something like center or 50%:

parseInt(currentPosArray[1].replace(/[^0-9\-]/g, ""));

[lhunath]

You might want to use jquery's relative css instead: http://jsfiddle.net/g7mSk/