function doCheck(username,vbs) {
if(username!="")
{
	vbs1=vbs
	var gNow = new Date();
	//alert("Check_User.aspx?bs=" + vbs + "&str="+ username + "&g=" + gNow.getSeconds());
	if (window.XMLHttpRequest) {
		req = new XMLHttpRequest();
		req.onreadystatechange = processChech;
		req.open("GET", "Check_User.aspx?bs=" + vbs + "&str="+ escape(username) + "&g=" + gNow.getSeconds(), true);
		req.send(null);
	} else if (window.ActiveXObject) {
		req = new ActiveXObject("Microsoft.XMLHTTP");
		if (req) {
			req.onreadystatechange = processChech;
			req.open("GET", "Check_User.aspx?bs=" + vbs + "&str=" + escape(username) + "&g=" + gNow.getSeconds(), true);
			req.send();
		}
	}
}
}

function processChech() {
	if (req.readyState == 4) {
		if (req.status == 200) {

			
				if(vbs1==0)
				{
				    //alert(req.responseText);
					if(req.responseText.indexOf("False") != -1){
					    document.getElementById("userNameError").style.color='red';
						document.getElementById("userNameError").innerHTML = "该邮箱已存在";
					}
					else
					{
					    document.getElementById("userNameError").style.color='';
						document.getElementById("userNameError").innerHTML = "您的电子邮箱，用于会员登录。";
					}
				}
				else
				{
				    
					if(req.responseText.indexOf("False") != -1){
					    document.getElementById("nickError").style.color='red';
						document.getElementById("nickError").innerHTML = "该昵称已存在";
					}
					else
					{
					    document.getElementById("nickError").style.color='';
						document.getElementById("nickError").innerHTML = "5-20个字符,一旦注册成功昵称不能修改。";
					}
					
				}

		} else {
			document.getElementById("userNameError").innerHTMLL = "用户名检查服务暂时不能使用，不过您可以继续申请！";
		}
	}
}