jQuery datepicker;最小/最大日期和动画

Question

我已经汇编了下面的代码，它在大多数情况下都有效。什么是不工作的是函数的前两行，涉及最小/最大日期和动画。其他一切都很完美。有什么想法吗？

<script type="text/javascript">   
/*  jQuery ready function. Specify a function to execute when the DOM is fully loaded.  */
    $(document).ready(
      /* This is the function that will get executed after the DOM is fully loaded */
      function () {
        $("#datepicker").datepicker('option', {minDate: 0, maxDate: "+1Y"});
        $("#datepicker").datepicker('option', {showAnim: 'drop'});
        $("#datepicker").datepicker('option', {changeMonth: false})
        $("#datepicker").datepicker('option', {changeYear: false})
        $("#datepicker").datepicker({ dateFormat: "DD, MM d, yy" }).val()
        $("#datepicker").datepicker('option', {altField: "#altDate"})
        $("#datepicker").datepicker('option', {altFormat: "yy-mm-dd"})

      }

    );
</script>

已解决：通过将两条顶行移到底部，可以解决问题。

<script type="text/javascript">   
/*  jQuery ready function. Specify a function to execute when the DOM is fully loaded.  */
    $(document).ready(
      /* This is the function that will get executed after the DOM is fully loaded */
      function () {
        $("#datepicker").datepicker('option', {changeMonth: false})
        $("#datepicker").datepicker('option', {changeYear: false})
        $("#datepicker").datepicker({ dateFormat: "DD, MM d, yy" }).val()
        $("#datepicker").datepicker('option', {altField: "#altDate"})
        $("#datepicker").datepicker('option', {altFormat: "yy-mm-dd"})
        $("#datepicker").datepicker('option', {minDate: 0, maxDate: "+1Y"});
        $("#datepicker").datepicker('option', {showAnim: 'drop'});
      }

    );
</script>