// JavaScript Document
function createRequest(options){

	var req = false;
	if(window.XMLHttpRequest) {		
	var req = new window.XMLHttpRequest();
	}
	else if (window.ActiveXObject) {
	var req = new window.ActiveXObject('Microsoft.XMLHTTP');
	}
	if(!req) return false;
	req.onreadystatechange = function(){
	if (req.readyState ==4 && req.status == 200){
	options.listener.call(req);
	}
	};
	req.open(options.method,options.url,true);
	return req;
	
}

function callback_touser(){
	
    if (document.form_lg.login_name.value=="" && document.form_lg.login_flag.value!=="yes")   

	{
	var str = this.responseText;
	document.getElementById('touser').innerHTML = str;
	}

}

function ajaxtouser(frm){

	if (frm=="indx"){
	var options = {
	url:'lib/get_touser.asp?from=indx',	
	listener:callback_touser,
	method:'GET'
	}
	}
	else if(frm=="sub1"){
	var options = {
	url:'../lib/get_touser.asp?from=sub1',	
	listener:callback_touser,
	method:'GET'
	}	
	}
	else if(frm=="sub1_food"){
	var options = {
	url:'../lib/get_touser.asp?from=sub1_food',	
	listener:callback_touser,
	method:'GET'
	}	
	}	
	else if(frm=="sub2"){
	var options = {
	url:'../../lib/get_touser.asp?from=sub2',	
	listener:callback_touser,
	method:'GET'
	}	
	}


	var request = createRequest(options);
	request.send(null);

}

function touser(frm){
timeout = window.setInterval(bindInterval(ajaxtouser,frm), 1000);//设定1秒调用一次get_cart.asp页面
}


function setflag(){
document.form_lg.login_flag.value="yes";
}


function bindInterval(funcName){
     var args=[];
     for(var i=1;i<arguments.length;i++){
         args.push(arguments[i]);
     }
     return function(){
         funcName.apply(this,args);
     }
}