I have following HTML with two elements having the same name

<input type=hidden name= chk0 value=>

<input type=checkbox name=chk0 value=true disabled>

Through JQuery, I want to set the enable the checkbox. So, I am using something like this:

$('#chk0').attr(disabled,false);

But this doesn't work. I assume JQuery is getting confused with two elements having the same identical name. Unfortunatel, I cannot avoid using two different names because, when the form is posted, I want all the checkboxes to get posted (not just the ones that are checked). Hence I have to use hidden element with the same name.. So, back to the question, how can I enable the checkbox through JQuery in the above scenario? Is there a type parameter for attr which distingues hidden from checkbox?

Thanks