var twocount;
twocount=0;
sc = new Array();
sc[0] = new Array('市区');
sc[1] = new Array('城区');
sc[2] = new Array('矿区');
sc[3] = new Array('南郊区');
sc[4] = new Array('新荣区');
sc[5] = new Array('开发区');
sc[6] = new Array('灵丘县');
sc[7] = new Array('天镇县');
sc[7] = new Array('左云县');
sc[8] = new Array('阳高县');
sc[9] = new Array('大同县');
sc[10] = new Array('广灵县');
sc[11] = new Array('浑源县');
sc[12] = new Array('其他地区');
twocount=13;
//配合上面生成出来得Javascript数组，控制地区和区域得对应关系
function ChangeDistrict(formname,strDistrict){
	formname.strDistrictSmall.length = 0;
	var i;
	formname.strDistrictSmall.options[0] = new Option('请选择','');
	for (i=0;twocount>i; i++)
	{
		if (sc[i][1] == strDistrict)
		{
			formname.strDistrictSmall.options[formname.strDistrictSmall.length] = new Option(sc[i][0], sc[i][0]);
		}
	}
}
//定位希望区域得默认值
function ChangeDistrictEd(formname,strDistrictSmall){
	var i;
	formname.strDistrictSmall.selectedIndex = 0;
	for (i=0;formname.strDistrictSmall.length>i; i++)
	{
		if(formname.strDistrictSmall.options[i].value == strDistrictSmall )
		{
			formname.strDistrictSmall.selectedIndex = i;
		}
	}
}