[mochikit] input disabled attr

[mario ruggier]

Hi,
confused... using setNodeAttribute() to set the "disabled" attribute of 
an input html element seems to do nothing, but setting it directly 
works fine. I.e.

setNodeAttribute(input, 'disabled', true);
setNodeAttribute(input, 'disabled', false);

seems to not do anything, but the following does what I expect:

input.disabled = true;
input.disabled = false;

What am I missing?

mario