How to blur the first form input at the dialog opening

Question

I have a jQuery.dialog who show a form.
The first input is and I init the datepicker like this jQue

Answer 1

I had to disable the datepicker before opening the dialog and enable it upon opening. But, the issue reoccurs after the initial open if you don't disable it upon close, again.

$(document).ready(function () {
    var dialog;

    $("#date").datepicker();
    $("#date").datepicker("disable");

    dialog = $("#dialog-form").dialog({
        autoOpen: false,
        height: "auto",
        width: "auto",
        modal: true,
        buttons: {
            "Create note": function () {
                $("#noteForm").submit();
            },
            Cancel: function () {
                dialog.dialog("close");
            }
        },
        open: function() {
            $("#date").datepicker("enable");
        },
        close: function () {
            $("#noteForm")[0].reset();
            $("#date").datepicker("disable");
        }
    });

    $("#create-note").button().on("click", function () {
        dialog.dialog('open');
        $("#time").focus();
    });

});