/////////////////////////////////////////////////////////////
//                Setup Class Names
/////////////////////////////////////////////////////////////
//default classes for infobox
var infoboxOkClass = "OkMsg";
var infoboxWarningClass = "WarningMsg";
var infoboxErrorClass = "ErrorMsg";
var infoboxHintClass = "HintMsg";
//default classes for input field
var inputWarningClass = "Warning";
var inputErrorClass = "Error";
var inputOkClass = "Ok";
var inputNormalClass = "Normal";

/////////////////////////////////////////////////////////////
//                Initialize Form  初始化表单
/////////////////////////////////////////////////////////////
function initForm() {
    //initialize form UI and add triggers
    var infobox;
    var x = document.getElementById("Content");
    if (!x) return;
    var y = x.getElementsByTagName("input");
    for (var i = 0; i < y.length; i++) {
        if (y[i].type == 'text' || y[i].type == 'password') {
            initStatus(y[i], true);
            setFiledWidth(y[i]);
            y[i].onfocus = getFocus;
            y[i].onblur = lostFocus;
            //            y[i].onkeyup = showMyStatus;
        }
        if (y[i].type == "checkbox") {
            initStatus(y[i], false);
            y[i].onfocus = getFocus;
            y[i].onblur = lostFocus;
            y[i].onkeyup = showMyStatus;
        }
    }
}
function initStatus(obj, isInput) {
    if (isInput) {
        if (isRequired(obj)) showStatus(obj, "Warning");
        else showStatus(obj, "Normal");
    }

    var infobox = getInfobox(obj);
    var errorCode = getInitStatus(obj);
    if (infobox && infobox.innerHTML == "") {
        if (!errorCode || errorCode == 0) {
            infobox.className = infoboxHintClass;
            infobox.innerHTML = getErrorMsg(obj, 0);
        }
        if (errorCode > 0) {
            infobox.className = infoboxErrorClass;
            infobox.innerHTML = getErrorMsg(obj, errorCode);
        }
    }
}
/////////////////////////////////////////////////////////////
//                Base Functions 基础函数
/////////////////////////////////////////////////////////////

//获取Http请求对象，这个对象用于客户端向服务

function getHTTPObject() {
    var xmlhttp = false;
    if (window.XMLHttpRequest) {
        xmlhttp = new XMLHttpRequest();
        if (xmlhttp.overrideMimeType) {
            xmlhttp.overrideMimeType('text/xml');
        }
    }
    else {
        try {
            xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
        } catch(e) {
            try {
                xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
            } catch(E) {
                xmlhttp = false;
            }
        }
    }
    return xmlhttp;
}
function isIE() {
    if (document.all) return true;
    return false;
}
function setFiledWidth(obj) {
    obj.style.width = (19 / 3) * obj.size + 11;
}
function formEle(required, datatype, parameter, infobox, errormsg, combine, status) {
    this.r = required;
    this.d = datatype;
    this.p = parameter;
    this.i = infobox;
    this.e = errormsg;
    this.c = combine;
    this.s = status;
}
function isRequired(obj) {
    if (obj.id) {
        if (eval(obj.id).r) return eval(obj.id).r;
    }
    return false;
}
function isCombine(obj) {
    if (obj.id) {
        if (eval(obj.id).c) return eval(obj.id).c;
    }
    return false;
}
function getDatatype(obj) {
    if (obj.id) {
        if (eval(obj.id).d) return eval(obj.id).d;
    }
    return false;
}
function getInfobox(obj) {
    if (obj.id) {
        if (eval(obj.id).i && document.getElementById(eval(obj.id).i)) return document.getElementById(eval(obj.id).i);
    }
    return;
}
function getErrorMsg(obj, errorCode) {
    if (obj.id) {
        if (eval(obj.id).e[errorCode]) return eval(obj.id).e[errorCode];
    }
    return;
}
function getHintMsg(obj) {
    if (obj.id) {
        if (eval(obj.id).e[0]) return eval(obj.id).e[0];
    }
    return;
}
function getInitStatus(obj) {
    if (obj.id) {
        if (eval(obj.id).s || eval(obj.id).s == 0) return eval(obj.id).s;
    }
    return;
}
function getAttrName(str) {
    var s = str.split("=");
    return s[0];
}
function getAttrValue(str) {
    var s = str.split("=");
    return s[1];
}
function getAttrValueByName(obj, str) {
    var para;
    if (obj.id) {
        if (eval(obj.id).p) para = eval(obj.id).p;
        else return;
    } else {
        return;
    }
    var s = para.split(",");
    for (var i = 0; i < s.length; i++) {
        if (getAttrName(s[i]) == str) {
            if (getAttrValue(s[i]))
                return getAttrValue(s[i]);
            else
                return;
        }
    }
    return;
}
function getMailServer(str) {
    //be sure str is a correct email address
    str = str.trim();
    return str.substr(str.indexOf("@") + 1);
}
function getMailAccount(str) {
    str = str.trim();
    return str.substr(0, str.indexOf("@"));
}
function isNumber(str) {
    var patn = new RegExp("^\\d{1,15}$");
    if (patn.test(str)) {
        return true;
    } else {
        return false;
    }
}

String.prototype.trim = function()
{
    return this.replace(/(^\s*)|(\s*$)/g, "");
}

/////////////////////////////////////////////////////////////
//                UI Functions 用户界面函数
/////////////////////////////////////////////////////////////
function getFocus(evnt)
{
    var obj;
    if (isIE()) {
        obj = event.srcElement;
    } else {
        obj = evnt.target;
    }
    showInfo(obj, 0);
}
function lostFocus(evnt)
{
    var obj;
    if (isIE()) {
        obj = event.srcElement;
        //设置或获取触发事件的对象,触发事件的源对象
    } else {
        obj = evnt.target;
    }
    showInfo(obj, -1);
    var infobox = getInfobox(obj);
    if (obj.value == '') {
        if (obj.id && eval(obj.id).c && document.getElementById(eval(obj.id).c)) {
            if (document.getElementById(eval(obj.id).c).innerHTML.indexOf("img") > 0) {
                var start = document.getElementById(eval(obj.id).c).innerHTML.indexOf('>');
                var end = document.getElementById(eval(obj.id).c).innerHTML.length;
                document.getElementById(eval(obj.id).c).innerHTML = document.getElementById(eval(obj.id).c).innerHTML.substring(start + 1, end);
            }
        }

        //        if (obj.id && eval(obj.id).c && document.getElementById(eval(obj.id).c)) {
        //            //var infobox = getInfobox(obj);
        //            var errorCode = getInitStatus(obj);
        //
        //            if (infobox && !isRequired(obj)) {
        //                if (infobox.className == infoboxErrorClass) {
        //                    infobox.className = "note";
        //                    infobox.innerHTML = getErrorMsg(obj, 0);
        //                }
        //            }
        //        }
        if (isRequired(obj)) {
            pass = false;
            //obj.focus();
            showStatus(obj, "Error");
            infobox.className = infoboxErrorClass;
            infobox.innerHTML = requireErrorInfo + getErrorMsg(obj, 0);
            if (isCombine(obj)) return;
        }
        return;
    }


    errorCode = validateValue(obj);
    //alert(errorCode);
    if (errorCode == 0) {
        //showStatus(obj,0);
        //check loginid

        if (obj.id == 'accountname') {
            chkUser();
            return;
        }
        //check email
        if (obj.id == 'email') {
            chkEmail();
            return;
        }
        if (obj.id == 'password') {
            //alert("pass");
            initStatus(document.getElementById('confirm_password'), true);
            document.getElementById('confirm_password').value = "";
            if (document.getElementById('confirm_password_info_check').innerHTML.indexOf("reg_right") > 0) {
                var start = document.getElementById('confirm_password_info_check').innerHTML.indexOf('>');
                var end = document.getElementById('confirm_password_info_check').innerHTML.length;
                document.getElementById('confirm_password_info_check').innerHTML = document.getElementById('confirm_password_info_check').innerHTML.substring(start + 1, end);
            }
        }
        if (obj.id) {
            if (eval(obj.id).c && document.getElementById(eval(obj.id).c))
                if (document.getElementById(eval(obj.id).c).innerHTML.indexOf("reg_right") < 0) {
                    document.getElementById(eval(obj.id).c).innerHTML = "&nbsp;<img src=\"http://register.ccidnet.com/passport/images/reg_right_19x19.gif\" width=\"19\" height=\"16\" align=\"absmiddle\"> " + document.getElementById(eval(obj.id).c).innerHTML;
                }

        }
        showStatus(obj, "Ok");
        infobox.className = infoboxHintClass;
        infobox.innerHTML = validatedInfo;
    }
    if (errorCode > 0) {
        if (obj.id) {
            //alert(eval(obj.id).i);
            //obj.focus();
            if (eval(obj.id).i && document.getElementById(eval(obj.id).i))
                showStatus(obj, "Error");
            showInfo(obj, validateValue(obj), true);
            if (isCombine(obj))
                return;
        }
        //showStatus(obj,"Error");
        if (document.getElementById(eval(obj.id).c).innerHTML.indexOf("img") > 0) {
            var start = document.getElementById(eval(obj.id).c).innerHTML.indexOf('>');
            var end = document.getElementById(eval(obj.id).c).innerHTML.length;
            document.getElementById(eval(obj.id).c).innerHTML = document.getElementById(eval(obj.id).c).innerHTML.substring(start + 1, end);
        }
    }
    if (errorCode < 0 && eval(obj.id)) {
        if (document.getElementById(eval(obj.id).c).innerHTML.indexOf("img") > 0) {
            var start = document.getElementById(eval(obj.id).c).innerHTML.indexOf('>');
            var end = document.getElementById(eval(obj.id).c).innerHTML.length;
            document.getElementById(eval(obj.id).c).innerHTML = document.getElementById(eval(obj.id).c).innerHTML.substring(start + 1, end);
        }
        if (obj.id) {
            //alert(eval(obj.id).i);
            if (eval(obj.id).i && document.getElementById(eval(obj.id).i))
                document.getElementById(eval(obj.id).i).className = 'note';
            document.getElementById(eval(obj.id).i).innerHTML = (eval(obj.id).e)[0];
            //document.getElementById(eval(obj.id).i).innerHTML = '&nbsp;';
        }
        //showStatus(obj,"Normal");
    }
}
function showInfo(obj, errorCode, forcible)
//Show Information in Infobox
//errorCode==0 for hint message
//if forcible==true, no matter what the status of infobox now, change it,
//otherwise,if the status of infobox is "Error", do not change it forever.
{
    var infobox = getInfobox(obj);
    if (infobox) {
        if (infobox.className != infoboxErrorClass || forcible) {
            if (errorCode == 0) {
                infobox.className = infoboxWarningClass;
                infobox.innerHTML = getErrorMsg(obj, errorCode);
            }
            if (errorCode > 0) {
                infobox.className = infoboxErrorClass;
                infobox.innerHTML = getErrorMsg(obj, errorCode);
            }
            if (errorCode < 0) {
                infobox.className = infoboxHintClass;
            }
        }
    }
}
function showMyStatus(evnt) {
    var obj,errorCode;
    if (isIE()) {
        obj = event.srcElement;
    } else {
        obj = evnt.target;
    }
    errorCode = validateValue(obj);
    if (errorCode == 0) {
        showStatus(obj, "Ok");
    }
    if (errorCode >= 1) {
        showStatus(obj, "Error");
    }
    if (errorCode < 0) {
        showStatus(obj, "Normal");
    }
}
function showStatus(obj, stat)
//Show the status of user currently inputting field
//3 Statuses: Warning|Error|Ok
{
    switch (stat) {
        case "Warning":
            obj.className = inputWarningClass;
            break;
        case "Error":
            obj.className = inputErrorClass;
            break;
        case "Ok":
            obj.className = inputOkClass;
            break;
        default:
            obj.className = inputNormalClass;
            break;
    }
}
/////////////////////////////////////////////////////////////
//                Validator Functions
/////////////////////////////////////////////////////////////
function validateValue(obj) {
    //trim
    var patn = /(^\s)|(\s$)/;
    if (patn.test(obj.value))    obj.value = obj.value.trim();
    //switcher
    var errorCode = -1;
    switch (getDatatype(obj)) {
        case "accountname":
            errorCode = validateUsername(obj);
            break;
        case "password":
            errorCode = validatePassword(obj);
            break;
        case "safepassword":
            errorCode = validateSafePassword(obj);
            break;
        case "email":
            errorCode = validateEmail(obj);
            break;
        case "mirror":
            errorCode = validateMirror(obj);
            break;
        case "num":
            errorCode = validateNum(obj);
            break;
        case "mobile":
            errorCode = validateMobile(obj);
            break;
        case "checkcode":
            errorCode = validateCheckCode(obj);
            break;
        default:
            errorCode = -1;
            break;
    }
    return errorCode;
}


function validateAll(formObj) {
    var obj,infobox,pass;
    pass = true;
    var x = formObj;
    if (!x) return;
    var y = x.getElementsByTagName("input");
    for (var i = 0; i < y.length; i++) {
        obj = y[i];
        obj.value = obj.value.trim();
        infobox = getInfobox(y[i]);
        if (obj.type == 'text' || obj.type == 'password') {
            if (!isRequired(obj) && obj.value == "") {
                continue;
            }
            if (isRequired(obj) && obj.value == "") {
                pass = false;
                obj.focus();
                showStatus(obj, "Error");
                infobox.className = infoboxErrorClass;
                infobox.innerHTML = requireErrorInfo + getErrorMsg(obj, 0);
                if (isCombine(obj)) break;
                continue;
            }
            if (validateValue(obj) > 0) {
                pass = false;
                obj.focus();
                showStatus(obj, "Error");
                showInfo(obj, validateValue(obj), true);
                if (isCombine(obj)) break;
                continue;
            }
            if (validateValue(obj) == 0) {
                showStatus(obj, "Ok");
                infobox.className = infoboxHintClass;
                infobox.innerHTML = validatedInfo;
                continue;
            }
        }
    }
    return pass;
}


//functions for each particular datatype validation
function validateUsername(obj) {
    var str = obj.value;
    //var patn =   /^[\u0391-\uFFE5a-zA-Z0-9][\u0391-\uFFE5\w]{2,20}$/;
    var patn = /^[_@a-zA-Z0-9\.]+$/;
    if (patn.test(str)) {
        if (checkByteLength(str, 4, 20)) return 0;
    }

//    if (isNameCharacter(obj, 1, "") == false) return 1;
    return 1;
}
function validatePassword(obj) {
    var str = obj.value;
    var patn = /.{4,16}/;
    if (patn.test(str)) return 0;
    return 1;
}
function validateSafePassword(obj) {
    var str = obj.value;
    //check length and alphabet
    var rank = 0;
    try {
        rank = PwdIntensity(str);
        printIntensity(rank);
    } catch (er) {
    }
    if (validatePassword(obj) > 0) return 1;
    //check if same as username
    if (str == document.getElementById("accountname").value) return 2;
    //check if all the characters are the same
    for (var i = 0; i < str.length; i++) {
        if (str.charAt(0) != str.charAt(i)) break;
    }
    if (i == str.length) return 3;
    //check if is number sequence
    var seqStr = "01234567890";
    if (seqStr.indexOf(str) != -1) return 4;
    //check if is lower alphabet sequence
    var seqStr1 = "abcdefghijklmnopqrstuvwxyz";
    if (seqStr1.indexOf(str) != -1) return 5;
    //check if is upper alphabet sequence
    var seqStr2 = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
    if (seqStr2.indexOf(str) != -1) return 6;
    if (rank == 1) {
        //return 7;
    }
    //if validated
    return 0;
}

function validateEmail(obj) {
    var str = obj.value;
    var patn = /^[_a-zA-Z0-9\-]+(\.[_a-zA-Z0-9\-]*)*@[a-zA-Z0-9\-]+([\.][a-zA-Z0-9\-]+)+$/;
    //var patn = /^[^\d\-_][\w\-]*[^\-_]@[^\-][a-zA-Z\d\-]*[^\-](\.[^\-][a-zA-Z\d\-]*[^\-])*\.[a-zA-Z]{3}(\.[a-zA-Z]{2})?$/;
    if (patn.test(str)) {
        var blocklist = eval(obj.id).p;
        if (blocklist.length > 0) {
            for (var i = 0; i < blocklist.length; i++) {
                if (getMailServer(obj.value) == blocklist[i])
                    return 2;//mailserver in block list
            }
            //return 0;
        }
        return 0;
    } else {
        return 1;
        //incorrect format
    }
}
function validateNum(obj) {
    var str = obj.value;
    var patn = new RegExp("\\d{" + getAttrValueByName(obj, "minlen") + "," + getAttrValueByName(obj, "maxlen") + "}");
    if (patn.test(str)) return 0;
    return 1;
}
function validateMobile(obj) {
    var str = obj.value;
    var patn = /^13\d{9}$/;
    if (patn.test(str)) return 0;
    return 1;
}
function validateCheckCode(obj) {
    var str = obj.value;
    var patn = /^[0-9a-zA-Z]{4}$/;
    if (patn.test(str)) return 0;
    return 1;
}
function validateMirror(obj) {
    if (validateSameAs(obj)) {
        var sameobj = document.getElementById(getAttrValueByName(obj, "sameas"));
        var sameobj_dt;
        if (eval(sameobj.id).d) sameobj_dt = eval(sameobj.id).d;
        else return -1;
        if (sameobj_dt != "mirror") { //avoid a mirror type filed being another mirror type filed's mirror
            if (validateValue(sameobj) == 0)     return 0;
            else return 2;
        }
    }
    return 1;
}
function validateSameAs(obj) {
    var v1,v2;
    if (!getAttrValueByName(obj, "sameas")) return true;
    v1 = obj.value;
    v2 = document.getElementById(getAttrValueByName(obj, "sameas")).value;
    if (v1 == v2) return true;
    return false;
}
function checkByteLength(str, minlen, maxlen) {
    if (str == null) return false;
    var l = str.length;
    var blen = 0;
    for (i = 0; i < l; i++) {
        if ((str.charCodeAt(i) & 0xff00) != 0) {
            blen ++;
        }
        blen ++;
    }
    if (blen > maxlen || blen < minlen) {
        return false;
    }
    return true;
}