var XMLHttpReq;
 	//创建XMLHttpRequest对象
function createXMLHttpRequest() {
    if (window.XMLHttpRequest) { //Mozilla 浏览器
        XMLHttpReq = new XMLHttpRequest();
    } else {
        if (window.ActiveXObject) { // IE浏览器
            try {
                XMLHttpReq = new ActiveXObject("Msxml2.XMLHTTP");
            }
            catch (e) {
                try {
                    XMLHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
                }
                catch (e) {
                }
            }
        }
    }
}

	//发送请求函数
	function limitShoppingRequest(url) {
	
		createXMLHttpRequest();
		XMLHttpReq.open("GET",url, true);
     	XMLHttpReq.onreadystatechange = processLimitShoppingResponse;//指定响应函数
    	XMLHttpReq.send(null);  // 发送请求
	}
	// 处理身份验证返回信息函数
    function processLimitShoppingResponse() {
    	if (XMLHttpReq.readyState == 4) { // 判断对象状态
 document.getElementById("limitShopping").innerHTML="" ;
        	if (XMLHttpReq.status == 200) { // 信息已经成功返回，开始处理信息
            	var res=XMLHttpReq.responseXML.getElementsByTagName("res")[0].firstChild.nodeValue;
            	
            	     if (res==1){

                	window.alert("提交失败！您已参与了今天的限时购活动！");                
                }
				else if(res==2){
				//window.alert("恭喜您抢购成功！请于三天内汇款有效！")
					window.location = "crazy_shop.jsp";    
				}else if(res==3){
				window.alert("今天抢购已结束，明天继续参加吧！")
				}
            } else { //页面不正常
                window.alert("您所请求的页面有异常。");
            }
			
        }else
		{
		 document.getElementById("limitShopping").innerHTML="<img src='images/loadingnew.gif' border='0'> 请等侍..." ;
		}
		
    }
	
    function userCheckLimitShopping() {
		username_limit = document.limitShoppingForm.username_limit.value;
		name_limit = document.limitShoppingForm.name_limit.value;
		provinces_limit = document.limitShoppingForm.provinces_limit.value;
		eCardScore_limit = document.limitShoppingForm.eCardScore_limit.value;
		if(username_limit=="") {
			window.alert("会员请先登录!");
			return false;
		}
		/*else if(parseInt(eCardScore_limit)>=50){
		window.alert("您的Ｅ卡币还有不少哦！先快快购物吧！");
		return false;
		}*/
		else {
			limitShoppingRequest("saveLimitShopping?username_limit=" + username_limit + "&name_limit=" + name_limit+" &provinces_limit="+provinces_limit+"&dowhat=save");
		}
	}