var xmlHttp = false;
try {
    xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
    try {
        xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
    } catch (e2) {
        xmlHttp = false;
    }
}
if (!xmlHttp && typeof XMLHttpRequest != 'undefined') {
    xmlHttp = new XMLHttpRequest();
}

function callServer() {
    var u_name = document.getElementById("DropDownList1").value;
    if ((u_name == null) || (u_name == "")) return;
    var url = "getsort.aspx?id=" + escape(u_name);
    xmlHttp.open("GET", url, true);
    xmlHttp.onreadystatechange = updatePage;
    xmlHttp.send(null);
}

function updatePage() 
{
    if (xmlHttp.readyState < 4) {
        test1.innerHTML = "";
    }
    if (xmlHttp.readyState == 4) {
        var response = xmlHttp.responseText;
        test1.innerHTML = response;
    }
}

function ajaxRead(str) {
    var xmlObj = null;
    if (window.XMLHttpRequest) {
        xmlObj = new XMLHttpRequest();
    }
    else if (window.ActiveXObject) {
        try
       { xmlObj = new ActiveXObject('Msxml2.XMLHTTP'); }
        catch (err)
       { xmlObj = new ActiveXObject('Microsoft.XMLHTTP'); }
    }
    xmlObj.onreadystatechange = function() {
        if (xmlObj.readyState == 4) {
            //alert("4");
            if (xmlObj.status == 200) {
                //alert("200");
                if (xmlObj.responseText.trim() != "") 
                {
                    alert(xmlObj.responseText);
                }

            }
            else {
                alert("error");

            }

        }
    }
    
    xmlObj.open("get", "response.aspx?tbname="+str+"", true);
    xmlObj.send(null);
}
function fb() { //处理提交
    var checkcode = document.getElementById("checkcode").value;
    var name = document.getElementById("name1").value;
    var content = document.getElementById("content").value;
   if (name == "") {
        alert("呢称不可为空!");
        document.getElementById("name").focus();
        return false;

    }
    if (checkcode == "") {
        alert("验证码不可为空!");
        document.getElementById("checkcode").focus();
        return false;
    }
    if (content == "") {
        alert("内容不可为空!");
        document.getElementById("content").focus();
        return false;
    }
    var checkcode = document.getElementById("checkcode").value;
    var url = "/getcode_pd.aspx?checkcode=" + checkcode;
    xmlHttp.open("GET", url, true);
    xmlHttp.onreadystatechange = update_checkcode;
    xmlHttp.send(null);
}
function update_checkcode() {
    var checkcode = document.getElementById("checkcode").value;
    var name = document.getElementById("name1").value;
    var content = escape(document.getElementById("content").value);
    var m_id = document.getElementById("m_id").value;
    var type = document.getElementById("type").value;

    if (xmlHttp.readyState == 4) {
        var response = xmlHttp.responseText;
        if (response == "wrong") {
            alert("验证码错误!");
            document.getElementById("checkcode").focus();
            return false;
        }
        else {
            url = "/pl_add.aspx?name=" + name + "&content=" + content + "&type=" + type + "&m_id=" + m_id + "";
            xmlHttp.open("GET", url, true);
            xmlHttp.send(null);
			alert("您的留言发表成功，请等待审核！");
		     document.getElementById("checkcode").value = "";
            document.getElementById("name1").value = "";
            document.getElementById("content").value = "";
        }
    }
}