Can you hold value of variables across scripts?

Can you use and hold the value of variables across scripts?

Say for example, onUserInput of text field Field1 I set a variable:

intHold = 1;

Then on onUserInput of text field Field 2 I do the following

if (intHold == 1) {
// do this
} else {
// DNE 1, do this
}

Will this work? If not, what's the right way to do this?