animation adding up incorrect with minus sign

[bmsterling]

Url for testing: ​http://benjaminsterling.com/experiments/bug1.2/animationbug.htm In the example url, when you do:

$('#moveRightDown').click(function(){
	$('.box').animate({left:400,top:400},100);
	return false;
});

The box will move to left 400 and top 400 when you click the button. But when you do the following:

$('#moveLeftUp').click(function(){
	$('.box').animate({left:-100,top:-100},100);
	return false;
});

The box will move back 100 left, and 100 top each time you click the button. It looks like the adding the minus sign is causing the issue.

[jsorgalla]

I've discovered the same problem with my jCarousel plugin. Since 1.2, jQuery is assuming a relative animation with leading +/- signs in the value.

So, it isn't any longer possible to animate left/top to an absolute negative position.

[john]

Fixed in SVN rev [3299].