Using PHP to get all items in a multi-select form field

I am trying to a "SELECT" element in a form, and I am allowing multiple selections. However when I try to retrieve the values PHP only returns the last selected value. I found that adding "[]" to the end of my element's name fixes the problem (PHP then gets an array) but I am using several JavaScript functions to validate, and alter the selections. Adding the brackets breaks all of the JavaScript. Can anyone give me a way to make both of these work? To still be able to use JavaScript (ie have a normal name) and yet get all of the selections from the box. I am currently off list, so please respond to my email address. Thanks! Chuck Hirstius