JavaScript calender to accept future date only

Is there a calendar c开发者_如何学编程ontrol to display only future dates? What would the code look like?

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The jQuery UI DatePicker can be configured to only allow future dates:

<script type="text/javascript">
$(function() {
    $("#datepicker").datepicker({minDate: 0});
});
</script>

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http://jqueryui.com/demos/datepicker/