Remove spaces and special characters from a form field

Hi,
I am tragically new to all of this, but am trying to create a form in Adobe Acrobat 9. I am trying to use a Custom Format script to take inputs in a form field and automatically remove spaces and special characters (hyphens specifically). For example, if a user inputs "RAN-99 06" I would like it to change to "RAN9906." I found this script that will not let users input special characters
if (!event.willCommit) {
event.change = event.change.replace(/[\$#~%\*\*\^\-\+=\[\]\{\};\"\<\>\?\|\\\!]/g, "");
And that's okay, but I can't figure out how to disallow spaces. Also, the perference would be for a script to allow users to input the data as they like, but to clean it up after they leave the text field.
Thanks in advance!

From the description, I assume that the script is currently in the Keystroke event. In fact, that would be a most logical way to have it; simply ignore anything unwanted when entered.
If you want to allow the user to enter anything, but "clean it up" when done, you would place your code in the Validate event. You will have to adjust your Regular Expression so that it works globally, but that's the whole difference. This will change the value.
Note that you can also enter the code into the Format event. However, that would only change the visual representation of the value, but internally, the value would remain as entered.
Hope this can help.
Max Wyss.

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