function getDate() {
    var now = new Date();
    var utc = now.getTime() + (now.getTimezoneOffset() * 60000);
    var est;
    est = new Date(utc + (3600000 * -4));
    return dateFormat(est, "dddd, mmmm dS, yyyy, h:MM:ss TT") + " EST";

}
function initiate_geolocationToTextbox() {
    navigator.geolocation.getCurrentPosition(handle_geolocation_queryToTextBox);
}

function handle_geolocation_queryToTextBox(position) {
    var longitude = position.coords.longitude;
    var latitude = position.coords.latitude;
    $("#IncidentLocation").val(latitude + " " + longitude);
}

// file1.js
function saveState(obj) {
    // write code here to saveState of some object
    alert('file1 saveState');
}
// file2.js (remote team or some third party scripts)
function saveState(obj, obj2) {
     // further code...
    alert('file2 saveState");
}

<script src="file1.js" type="text/javascript"></script>
<script src="file2.js" type="text/javascript"></script>