I'm calling a function that's loaded in custom js file in the header.

my.js has

$(document).ready(function(){
    function testFunction(){ 
        alert("inside testfunction");
    }
});

after a few clicks, this is loaded in the :

$("#someid").live($.myapp.event.play, function(event) {
    alert("this works");
    testFunction();
});

the alert "this works", fires, but then nothing happens, what am I doing wrong?