var xmlHttp;
function createXMLHttpRequest(){
	if(window.ActiveXObject){
		xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
	}
	else if(window.XMLHttpRequest){
		xmlHttp = new XMLHttpRequest();
	}
}
createXMLHttpRequest();
function callServer(){
	var users = document.getElementById("users").value;
	var phone = document.getElementById("phone").value;
	var code = document.getElementById("code").value;
	if ((users == null) || (users == "") || (phone == "")) 
	{
	    alert("请填入真实姓名和联系电话, 我们将在第一时间与您取得联系!");
	    return;  
	}  
	if (code == "") 
	{
	    alert("请填入根据提示, 填入正确的验证码!");
	    return;  
	}  
	var url = "user_yes.aspx?users=" + escape(users) + "&phone=" + escape(phone) + "&code=" + escape(code) + "&rad=" + Math.random();    
	xmlHttp.open("GET", url, true);    
	xmlHttp.onreadystatechange = updatePage;   
	xmlHttp.send(null); 
}
function updatePage(){
	if (xmlHttp.readyState == 4) {      
		if(xmlHttp.status==200)     
		{
			var response = xmlHttp.responseText;   
			if(response=="操作成功!")
			    document.getElementById("infos").style.display="block";  
			alert(response);
		}
	}
}