var ADKPasswordStrength =
{
    Level: ["高", "一般", "弱"],
    LevelValue: [30, 20, 0], //强度值 
    Factor: [1, 2, 5], //字符加数,分别为字母，数字，其它 
    KindFactor: [0, 0, 10, 20], //密码含几种组成的加数
    Regex: [/[a-zA-Z]/g, /\d/g, /[^a-zA-Z0-9]/g] //字符正则数字正则其它正则
}
ADKPasswordStrength.StrengthValue = function (pwd) {
    var strengthValue = 0;
    var ComposedKind = 0;
    for (var i = 0; i < this.Regex.length; i++) {
        var chars = pwd.match(this.Regex[i]);
        if (chars != null) {
            strengthValue += chars.length * this.Factor[i];
            ComposedKind++;
        }
    }
    strengthValue += this.KindFactor[ComposedKind];
    return strengthValue;
}

ADKPasswordStrength.StrengthLevel = function (pwd) {
    var value = this.StrengthValue(pwd);
    for (var i = 0; i < this.LevelValue.length; i++) {
        if (value >= this.LevelValue[i])
            return this.Level[i];
    }
}

ADKPasswordStrength.Check = function (iobj, sobj) {
    var inputobj, showobj;

    inputobj = typeof (iobj) == "string" ? document.getElementById(iobj) : iobj;
    showobj = typeof (sobj) == "string" ? document.getElementById(sobj) : sobj;

    if (!showobj || !inputobj)
        return;

    var lv = ADKPasswordStrength.StrengthLevel(inputobj.value);
    if (lv == "高") {        
        showobj.className = "ADKPasswordStrength_height"
    }
    else if (lv == "一般") {        
        showobj.className = "ADKPasswordStrength_middle"
    }
    else if (lv == "弱") {        
        showobj.className = "ADKPasswordStrength_low"
    }
}