dojox.widget.Wizard widget buttons trapping click

[dante]

as of 01-18-2008, dojox.widget.Wizard buttons do not work.

http://archive.dojotoolkit.org/dojo-2008-01-18/dojotoolkit/dojox/widget/tests/test_Wizard.html

the last working nightly: http://archive.dojotoolkit.org/dojo-2008-01-17/dojotoolkit/dojox/widget/tests/test_Wizard.html

the line removing:

mapNode[attr] = value; //FF2 won't set readOnly et al with node.setAttribute

for dojo.attr() in [12067] is the cause of the regression.

[doughays]

dojo.attr can't use setAttribute with disabled or readonly on FF

[doughays]

(In [12090]) Fixes #5620 !strict. Added support to dojo.attr for boolean attributes on Firefox.