source: Dev/trunk/src/client/dijit/form/DateTextBox.js

define([
        "dojo/_base/declare", // declare
        "../Calendar",
        "./_DateTimeTextBox"
], function(declare, Calendar, _DateTimeTextBox){

        // module:
        //              dijit/form/DateTextBox

        return declare("dijit.form.DateTextBox", _DateTimeTextBox, {
                // summary:
                //              A validating, serializable, range-bound date text box with a drop down calendar
                // example:
                // |    new DateTextBox({value: new Date(2009, 0, 20)})
                // example:
                // |    <input data-dojo-type='dijit/form/DateTextBox' value='2009-01-20'>

                baseClass: "dijitTextBox dijitComboBox dijitDateTextBox",
                popupClass: Calendar,
                _selector: "date",

                // Prevent scrollbar on Calendar dropdown.  On iPad it often gets a scrollbar unnecessarily because Viewport
                // thinks the keyboard is showing.  Even if the keyboard is showing, it disappears when the calendar gets focus.
                maxHeight: Infinity,

                // value: Date
                //              The value of this widget as a JavaScript Date object, with only year/month/day specified.
                //              If specified in markup, use the format specified in `stamp.fromISOString`.
                //              set("value", ...) accepts either a Date object or a string.
                value: new Date("")     // value.toString()="NaN"
        });
});