function GetResult(str,classid)
{
var MenuIdArr,MenuFieldArr,MenuClass
MenuIdArr= new Array()
MenuClass=3

MenuIdArr[1]="TxtProvince"
MenuIdArr[2]="TxtCity"
MenuIdArr[3]="TxtArea"

if (window.XMLHttpRequest) { // Mozilla, Safari, ...
    http_request = new XMLHttpRequest();
} else if (window.ActiveXObject) { // IE
    http_request = new ActiveXObject("Microsoft.XMLHTTP");
}

var linkurl="../ajaxProvince.aspx?classid="+classid+"&sel="+str
http_request.open("GET",linkurl,false);
http_request.send(null);

var returntxt=unescape(http_request.responseText)
BuildSel(returntxt,document.getElementById(MenuIdArr[classid+1]))

var kkk
for(kkk=classid+2;kkk<=MenuClass;kkk++)
	{		
	submenu=document.getElementById(MenuIdArr[kkk])	
	submenu.length=1
	submenu.options[0].selected=true
	}
}

function BuildSel(str,sel)
{
    sel.options.length=0;
    var arrstr = new Array();
    arrstr = str.split(",");
    sel.options.add(new Option( "-----请选择-----",""));  
    if(str.length>0) {

    	
        for(var i=0;i<arrstr.length;i++)
        {
            var subarrstr=new Array
            subarrstr=arrstr[i].split("|")
            sel.options.add(new Option(subarrstr[1], subarrstr[0])); 
        }
        sel.options[0].selected=true
    }

}