Recording The Id Of A Input-text If A Particular Key Is Pressed

I need a javascript that could record the ID/name of a textbox when the user hit delete or backspace to be used on the next page after submission in a PHP script.

There are 96 text boxes, they are all randomly placed on the screen with a question that came from a randomized array's keys (the script later checks the values of the textboxes with the values from the array's keys that correlate to the textboxes by the name/id of the textbox, which is assigned by a for loop that issues the next($array) to assign everything everywhere.

At the same time, it needs to count how many times the backspace/delete were pushed and have that recorded and sent as well.

After 45 minutes of research I've been able to solve the "count the backspace/delete key" problem:

<script type="text/javascript">
var count = 0;
document.onkeypress=function(e){
var e=window.event || e

[Code]....

But onto the name/id issue: I'm not sure how to go about retrieving the names/id of the textboxes. I would assume a onkeypress event for every textbox, but hope that there could be something I could just add to this code.