var selstr;
var selclassid;
var req;

function GetResult(str,classid){
	selstr = str;
	selclassid = classid;
	var url = ajax_server;
	if(window.XMLHttpRequest)
	{
		req=new XMLHttpRequest();
	}
	else if(window.ActiveXObject)
	{
		req=new ActiveXObject("Microsoft.XMLHttp");
	}
	
	if(req)
	{
		req.open("POST",url,true);
		req.onreadystatechange = buildnext;
		req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
		req.send("todo=area&sel="+selstr);
	}
}
function buildnext()
{
	var MenuIdArr,MenuClass,MenuText;
	MenuIdArr= new Array();
	MenuText= new Array();
	tmptag= new Array();
	
	MenuClass=3;

	if(req.readyState ==4){
		var result=req.responseText;
		if (req.status == 200) {
		  	for (k=1;k <= MenuClass; k++)
			{
				MenuIdArr[k]='sel'+k;
			}
			BuildSel(result,document.getElementById(MenuIdArr[selclassid+1]));
			var menui;
			for(menui=selclassid+2;menui<=MenuClass;menui++)
			{		
				submenu=document.getElementById(MenuIdArr[menui]);
				submenu.length=1;
				submenu.options[0].selected=true;
			//	document.getElementById(MenuText[menui]).value="";
			}
		}
	}

}
function putText(txtcontent,txtboj)
{
	txtboj.value=txtcontent;
}
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;
		sel.style.display="";
	}
}