function chkinput(form){
	if(form.UserName.value=="" || form.UserName.value.length<1){
		alert("请输入用户名");
		//form.UserName.focus();
		return false;
	}
	if(form.Pwd.value=="" || form.Pwd.value.length<1){
		alert("请输入用户密码！");
		return false;
	}
	if(form.ExCode.value=="" || form.ExCode.value.length<1){
		alert("请输入验证码！");
		return false;
	}
	return true;
}

function CreateXMLHTTP()
{
	try{return new ActiveXObject('MSXML2.XMLHTTP');}catch(x){}
	try{return new ActiveXObject('Microsoft.XMLHTTP');}catch(x){}
	throw(new Error(-1,'不能创建XMLHTTP'));
 } 
 
function postLogin(objFrom)
{
    var xmlhttp = CreateXMLHTTP();
    var fromValue="UserName="+objFrom.UserName.value+"&Pwd="+objFrom.Pwd.value;
	var url = "http://www.sinowool.com/Login.aspx";
	xmlhttp.open("POST",url,false);
	xmlhttp.setRequestHeader("Content-Length",fromValue.length);
	xmlhttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
	xmlhttp.send(fromValue);
	//alert(xmlhttp.responseText);
}

function temppostLogin(objFrom)
{
    var xmlhttp = CreateXMLHTTP();
    var fromValue="UserName="+objFrom.UserName.value+"&Pwd="+objFrom.Pwd.value;
	var url = "http://www.sinowool.com/Login.aspx";
	xmlhttp.open("POST",url,false);
	xmlhttp.setRequestHeader("Content-Length",fromValue.length);
	xmlhttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
	xmlhttp.send(fromValue);
	alert(xmlhttp.responseText);
}