Safari3, dojo._getMarginExtents error.

[guest]

the hack solution on that function seems does not need any more.

[bill]

Refs #3515 which added this code:

if(d.isSafari && (s.position != "absolute")){
	// FIXME: Safari's version of the computed right margin
	// is the space between our right edge and the right edge 
	// of our offsetParent. 
	// What we are looking for is the actual margin value as 
	// determined by CSS.
	// Hack solution is to assume left/right margins are the same.
	r = l;
}

Base safari bug is https://bugs.webkit.org/show_bug.cgi?id=13343. That bug isn't closed yet but perhaps was fixed?