function xmlHttp(Url,xmlBack){
	var xObj=null;try{xObj=new ActiveXObject("MSXML2.XMLHTTP")}catch(e){try{xObj=new ActiveXObject("Microsoft.XMLHTTP")}catch(e2){try{xObj=new XMLHttpRequest()}catch(e){}}};
	with(xObj){open("get",Url, true);onreadystatechange=function(){if(readyState==4&&status==200){xmlBack(responseText)}};send(null)}
};
		//封装返回省级数据
function city(s1,s2,s3)
{
	xmlHttp('/JavaScript/ajaxarea.asp?Id='+s1+"&TypeID="+s2,function(v1){sfs(v1,s2,s3)});	
}
function sfs(v1,s2,s3){
	var s2=eval("document.all."+s2);
	var s3=s3
	s2.length=0;
	var sA1=v1.split("|");
	for(i=0;i<sA1.length;i++)
	{
	  var sA2=sA1[i].split(",");
		if(sA2[0]==s3){
		s2.options.add(new Option(sA2[1],sA2[0]));
		s2.options[i].selected = true;
		}
		else{
		s2.options.add(new Option(sA2[1],sA2[0]));
		}
	}

}

//封装返回Select选中值
function getSelectValue(id)
{
	var oSel = document.all(id);
	return oSel.options[oSel.selectedIndex].value;
}

//封装改变省级菜单产生事件city1
function city1_change(cc1,cc2)
{
	city(getSelectValue(cc1),cc2);
}