function linkUrl(s1,s2,s3){
var url='';
parent.frm.provinceNum.value = s1;
parent.frm.cityNum.value = s2;
parent.frm.countyNum.value = s3;
if (s1!=''&&s2==''&& s3=='') {
url="NationProvince.do"
}
if (s1!=''&& s2!=''&& s3=='') {
url='NationCity.do'
}
if (s1!=''&& s2!=''&& s3!='') {
url='NationCounty.do'
}
parent.frm.action=url;
parent.frm.submit();
}