jQuery: Date Range Validation

Here's a quick example on how to disable previous dates based on the date selected from the first calendar date. You can see the actual demo here: http://jsfiddle.net/j3w726r0/

<script type="text/javascript">
        $(function () {
            $("#<%=TextBox1.ClientID%>").datepicker({
                changeMonth: true,
                changeYear: true,
        onSelect: function(selected) {
                      $("#<%=TextBox2.ClientID%>").datepicker("option","minDate", selected)
                }
            });
            $("#<%=TextBox2.ClientID%>").datepicker({
                changeMonth: true,
                changeYear: true,
        onSelect: function(selected) {
                      $("#<%=TextBox1.ClientID%>").datepicker("option","maxDate", selected)
                }
            });
        });
</script>