reading value of textbox

[JayJava]

If there are square brackets [] in name of an item in a form how can you use it in javascript?

Example:

I have a simple form with several text boxes in it in a PHP page.
Textboxes are named like this:

txtbx[1], txtbx[2],.....

<input type=text size=3 name=txtbx[1] value=5>



how can I read their value with javascript?

normally it would be form.txtbx1.value
but the square bracket (for array in PHP) is causing problem.


thanks in advance