$(document).ready(function () {

    $('#imgTrack').click(function (e) {
        track();
        //popModal(e);
    })

    $('#txtTracking').keypress(function (e) {
        var pK = e ? e.which : window.event.keyCode;
        if (pK == "13") {            
            track();
        }
    })

    document.onkeypress = kH;
    if (document.layers) document.captureEvents(Event.KEYPRESS);
});

function kH(e) {
    var pK = e ? e.which : window.event.keyCode;
    return pK != 13;
}

function track() {
    // relative url mod RY:
    var loc = '' + window.location;
    var index = loc.lastIndexOf("/");
    loc = loc.substring(0, index) + "/";

    if (loc.indexOf('/parcel') != -1) {
        index = loc.lastIndexOf("/");
        loc = loc.substring(0, index - 7) + "/";
    }

    if (loc.indexOf('/courier-services') != -1) {
        index = loc.indexOf('/courier-services');
        loc = loc.substring(0, index) + "/";
    }

    if (loc.indexOf('/courier-companies') != -1) {
        index = loc.indexOf('/courier-companies');
        loc = loc.substring(0, index) + "/";
    }

    var tracking = document.getElementById('txtTracking').value;

    window.location = loc + "instanttracking.aspx?tRef=" + tracking;
}