Jquery wait for keypress [duplicate]

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Possible Duplicate:

JavaScript execute until keypress

I've got a function that needs to be played, after the function does it's job the user has to press a key to continue. Does anybody know how to pause the function until a key is pressed?

Thanks in advance

---

var pause = true;

function bla() {
    // your function does stuff

    while(pause) {
        $(document).bind('keypress', function(e) {
            if(e.keyCode == 13) {
                pause = false;
            }
        });
    }

    // go on doing stuff...
}

Its only idea.