[jQuery] How to select element id that contains [] chars

[Stuart]

I've got a little problem here that would seem simple to sort out but
has been rather stubborn. I'm trying to loop through a bunch of hidden
text fields and grab their value. They look like so;

<input type="hidden" id="scheduleHours[0]" name="scheduleHours[0]"
value="7.5" />
<input type="hidden" id="scheduleHours[1]" name="scheduleHours[1]"
value="7.5" />
<input type="hidden" id="scheduleHours[2]" name="scheduleHours[n...]"
value="7.5" />

These are the product of a Java Server Faces datalist (Tomahawk
component) so there is no way to avoid the array-like notation in the
id. I'm just building an array of these values with a for loop:

var schedule = new Array();

for (var dayNum = 0; dayNum < counts.days; ++dayNum) {
        schedule[dayNum] = $('#scheduleHours[' + dayNum + ']').val();
}

The problem is that the jQuery selector $('#scheduleHours[' + dayNum +
']').val() is not matching anything. Could it be possible that the "["
and "]" characters are being interpreted by jQuery as being part of
the attribute selector syntax like so? $("[EMAIL PROTECTED]").val();
I'm taking a guess here that I need to escape the [] chars.

Anyone have an idea?