(function(){
	validPassword ={
		Level : ['h', 'm', 'l'],
		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
		StrengthValue : function(pwd)
		{
			var strengthValue = ComposedKind = i = 0, len = this.Regex.length;
			for(i ; i < len; i++)
			{
				var chars = pwd.match(this.Regex[i]);
				if(chars != null)
				{
					strengthValue += chars.length * this.Factor[i];
					ComposedKind ++;
				}
			}
			strengthValue += this.KindFactor[ComposedKind];
			return strengthValue;
		},
		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];
			}
		}
	};
})();