Text entry without a Submit button

Again, Thank you all.

I see that I was not very clear. The problem is this:

I am creating a simulation of an existing application that evaluates the user's text entry on the fly and  displays a result based solely on that entry. It must, I repeat must mimic the application exactly. My stake holder, i.e. client has deemed that it is unacceptable to ask the user to do something in the simulation that the application does not actually require.

So, after typing a specifiic string of five numerals, it must advance automatically to the next slide without any additional clicks. So that means: no Submit button; no cliicking on the screen in some other location; no pressing on the enter key.

I have been able to acheive this in a competing elearning authoring program because I can have it evalutate the value in a variable every second or two.  That approach can be a bit sluggish but at least it is accurate.

Again, Thank you all. I truely appreciate the thought that you went to on my behalf.