var activeBoxId = null;

function pageInit() {
    $("p#milesStatusSelect").show();

    $("select#carrierSelect").change(function() {
        handleCarrierSelect(this);
    });

    var objSelect = $("select#carrierSelect").get(0);
    if (objSelect[objSelect.selectedIndex].value !== "") {
        handleCarrierSelect(objSelect);
    }
}

function handleCarrierSelect(objSelect) {
    if (objSelect[objSelect.selectedIndex].value !== "") {
        var carrierBoxId = "statusBox_" + objSelect[objSelect.selectedIndex].value;
        if (activeBoxId) {
            $("#" + activeBoxId).hide();
            $("#" + carrierBoxId).show();
        } else {
            $("#" + carrierBoxId).slideDown("fast");
        }
        activeBoxId = carrierBoxId;
    }

}