> $j(".is_preferred_email").each(
> function(i) {
> this[i].checked = false;
> }
> );
Inside the function of each(), the first arg is the index in the
array. The "this" is the actual DOM element. It looks like you thought
it was the original jQuery object, but it's not. In short, what you
wanted was this.checked and not this[i].checked.
However, you could have just said:
$j(".is_preferred_email").attr("checked", false);
which is a lot shorter! There is an internal .each() built into nearly
all the setter functions like .attr(), .css(), and .bind() so it is
automatically applied to all the elements that were selected.
