var settxtvalue = function(name){
    $(name).value = "";
}
var login_checkf = function(){
    var isok = true;
    var errormessg = "";
    var txtusernamejs = $('txtfusername').get('value').trim();//用户名
    if(txtusernamejs ==""|| txtusernamejs =="[用户名]" || txtusernamejs.length < 3 || txtusernamejs.length > 20)
    {
        isok = false;
        errormessg += "请填写用户名长度在 3 ~ 20 个字符之间！\r\n";
    }
    var txtpasswordjs = $('txtfpassword').get('value').trim();//密码
    if(txtpasswordjs == ""|| txtpasswordjs == "[密码]" || txtpasswordjs.length < 5 || txtpasswordjs.length > 20)
    {
        isok = false;
        errormessg += "请填写密码长度在 5 ~ 20 个字符之间！\r\n";
    }
    if(!isok)
    {
        alert(errormessg);
        return false;
    }
}
var login_check = function(){
    var isok = true;
    var errormessg = "";
    var txtusernamejs = $('txtusername').get('value').trim();//用户名
    if(txtusernamejs ==""|| txtusernamejs =="[用户名]" || txtusernamejs.length < 3 || txtusernamejs.length > 20)
    {
        isok = false;
        errormessg += "请填写用户名长度在 3 ~ 20 个字符之间！\r\n";
    }
    var txtpasswordjs = $('txtpassword').get('value').trim();//密码
    if(txtpasswordjs == ""|| txtpasswordjs == "[密码]" || txtpasswordjs.length < 5 || txtpasswordjs.length > 20)
    {
        isok = false;
        errormessg += "请填写密码长度在 5 ~ 20 个字符之间！\r\n";
    }
    if(!isok)
    {
        alert(errormessg);
        return false;
    }
}

var activeuser = function(){
    var isok = true;
    var errormessg = "";
    var txtusernamejs = $('txtusername').get('value').trim();//用户名
    if(txtusernamejs ==""|| txtusernamejs =="[用户名]" || txtusernamejs.length < 3 || txtusernamejs.length > 20)
    {
        isok = false;
        errormessg += "请填写用户名长度在 3 ~ 20 个字符之间！\r\n";
    }
    var txtpasswordjs = $('txtpassword').get('value').trim();//密码
    if(txtpasswordjs == ""||  txtpasswordjs.length < 5 || txtpasswordjs.length > 20)
    {
        isok = false;
        errormessg += "请填写密码长度在 5 ~ 20 个字符之间！\r\n";
    }
    var txtpasswordjs2 = $('txtpassword2').get('value').trim();//重密码
    if(txtpasswordjs2 != "" && txtpasswordjs2 != txtpasswordjs)
    {
        isok = false;
        errormessg += "两次密码不一样！\r\n";
    }
    
    var txtemailjs = $('txtemail').get('value').trim();//邮箱
    if(txtemailjs == "")
    {
        isok = false;
        errormessg += "邮箱不能为空！\r\n";
    }
    var txtactivatecodejs = $('txtactivatecode').get('value').trim();//激活码
    if(txtactivatecodejs == "")
    {
        isok = false;
        errormessg += "激活码不能为空！\r\n";
    }
    if(!isok)
    {
        alert(errormessg);
        return false;
    }
}

var reguser = function(){
    var isok = true;
    var errormessg = "";
    var txtusernamejs = $('txtusername').get('value').trim();//用户名
    if(txtusernamejs ==""|| txtusernamejs =="[用户名]" || txtusernamejs.length < 3 || txtusernamejs.length > 20)
    {
        isok = false;
        errormessg += "请填写用户名长度在 3 ~ 20 个字符之间！\r\n";
    }
    var txtpasswordjs = $('txtpassword').get('value').trim();//密码
    if(txtpasswordjs == ""||  txtpasswordjs.length < 5 || txtpasswordjs.length > 20)
    {
        isok = false;
        errormessg += "请填写密码长度在 5 ~ 20 个字符之间！\r\n";
    }
    var txtpasswordjs2 = $('txtpassword2').get('value').trim();//重密码
    if(txtpasswordjs2 != "" && txtpasswordjs2 != txtpasswordjs)
    {
        isok = false;
        errormessg += "两次密码不一样！\r\n";
    }
    
    var txtemailjs = $('txtemail').get('value').trim();//邮箱
    if(txtemailjs == "")
    {
        isok = false;
        errormessg += "邮箱不能为空！\r\n";
    }
    
    if(!isok)
    {
        alert(errormessg);
        return false;
    }
}

var commchk = function(){
    var isok = true;
    var errormessg = "";
    var hasnolog = false;
    var txtusernamejs = $('comusername').get('value').trim();//用户名
    if(txtusernamejs =="")
    {
        isok = false;
        errormessg += "请先登陆！\r\n";
        hasnolog = true;
    }
    var txtcommentjs = $('txtcomment').get('value').trim();//评论内容
    if(txtcommentjs == ""|| txtcommentjs.length < 5 || txtcommentjs.length > 500)
    {
        isok = false;
        errormessg += "请填写评论内容长度在 5 ~ 500 个字符之间！\r\n";
    }
    if(hasnolog)
    {
        alert('请先登陆');
        document.location='login.aspx?urlfrom='+window.location;
        return false;
    }
    else
    {   
        if(!isok)
        {
            alert(errormessg);
            return false;
        }
    }
}

var search = function(){
    var isok = true;
    var errormessg = "";
    var txtsearchjs = $('txtsearch').get('value').trim();//搜索
    if(txtsearchjs =="")
    {
        isok = false;
        errormessg += "请输入要搜索的内容！\r\n";
    }
    if(!isok)
    {
        alert(errormessg);
        return false;
    }
}

function setTab(name,cursel,n){
for(i=1;i<=n;i++){
var menu=document.getElementById(name+i);
var con=document.getElementById("con_"+name+"_"+i);

con.style.display=i==cursel?"block":"none";
}
}