<script type="text/javascript">  
$(function(){
		　$("#form_start_time").datepicker({
			maxDate: $(&#039;#form_end_time&#039;).val(),
			dateFormat: &#039;yy-mm-dd&#039;,
	        onSelect: function(dateText, inst){  
	            $(&#039;#form_end_time&#039;).datepicker(&#039;option&#039;, &#039;minDate&#039;, dateText);  
	        }  
		});
	});
	$(function(){
		　$("#form_end_time").datepicker({
			minDate: $(&#039;#form_start_time&#039;).val(),
			dateFormat: &#039;yy-mm-dd&#039;,
	        onSelect: function(dateText, inst){  
	            $(&#039;#form_start_time&#039;).datepicker(&#039;option&#039;, &#039;maxDate&#039;, dateText);  
	        }  
		});
	});
    </script>