HELP NEEDED: Numeric field without arrows

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1

Hi,

I have a numeric field in my lightbox. It is a conversion lightbox, so I used the ElementName_keyPress function to make it convert immediately. It all works fine. until a user clicks an arrow in the right of the field. Is there any way how I can hide them?

Thanks!

Edit: I found a RegEx (Javascript regular expression) that makes sure only numbers are valid, but it does not prevent the user from entering them. The RegEx is:

^[0-9]*$
2

I suppose I have to use a regex =, but isn’t there another option?
If no, what regex is the best? I want the field to have no min or max value.