// JavaScript Document
function init(theForm)
{
	for(i=1;i<province.length;i++)
		theForm.province.add(new Option(province[i],provinceid[i])); 
}
function clear(o)
{
	l=o.length;
	for (i = 0; i< l; i++)
		o.options[1]=null;
}
function switchprovince(obj1,obj2,obj3,pos)
{
	clear(obj3);
	clear(obj2);
	if(pos!=0)
		for(i=1;i<city[pos].length;i++)
		    obj2.add(new Option(city[pos][i],cityid[pos][i]));
}
function switchcity(obj1,obj2,obj3,pos1,pos2)
{
	clear(obj3);
	if(pos2!=0)
		for(i=1;i<county[pos1][pos2].length;i++)
		    obj3.add(new Option(county[pos1][pos2][i],countyid[pos1][pos2][i]));
}