<script type="text/javascript" src="http://passport.ttpet.com/pjs/pjs-region.js" type="text/javascript"></script>
<select region="province" val="<{$pet.region_no1_id}>" name="data[province]" ></select>
<select region="city" val="<{$pet.region}>" name="data[region]"></select>
var $province = $("select[region='province']",$w);//地区
var $city = $("select[region='city']",$w);//城市
$province.Region(1,$province.attr('val'));//一级
$province.change(function(){
$city.Region($province.val());
});
$city.Region($province.val(),$city.attr('val'));