密码强度.html

<li style="height:15px; line-height:15px;">
   <dd style="height:15px;">&nbsp;&nbsp; &nbsp;</dd>
     <dt style="height:15px;">
        <div class="ywz_zhuce_hongxianwenzi"> 弱</div>
        <div class="ywz_zhuce_hongxianwenzi"> 中</div>
        <div class="ywz_zhuce_hongxianwenzi"> 强</div>
        </dt>
</li>

<script type="text/javascript">
	$('#txtPwd').focus(function () {
		$('#pwdLevel_1').attr('class', 'ywz_zhuce_hongxian');
		$('#txtPwd').keyup();
	});

	$('#txtPwd').keyup(function () {
		var __th = $(this);

		if (!__th.val()) {
			$('#pwd_tip').hide();
			$('#pwd_err').show();
			Primary();
			return;
		}
		if (__th.val().length < 6) {
			$('#pwd_tip').hide();
			$('#pwd_err').show();
			Weak();
			return;
		}
		var _r = checkPassword(__th);
		if (_r < 1) {
			$('#pwd_tip').hide();
			$('#pwd_err').show();
			Primary();
			return;
		}

		if (_r > 0 && _r < 2) {
			Weak();
		} else if (_r >= 2 && _r < 4) {
			Medium();
		} else if (_r >= 4) {
			Tough();
		}

		$('#pwd_tip').hide();
		$('#pwd_err').hide();
	});



	function Primary() {
		$('#pwdLevel_1').attr('class', 'ywz_zhuce_huixian');
		$('#pwdLevel_2').attr('class', 'ywz_zhuce_huixian');
		$('#pwdLevel_3').attr('class', 'ywz_zhuce_huixian');
	}

	function Weak() {
		$('#pwdLevel_1').attr('class', 'ywz_zhuce_hongxian');
		$('#pwdLevel_2').attr('class', 'ywz_zhuce_huixian');
		$('#pwdLevel_3').attr('class', 'ywz_zhuce_huixian');
	}

	function Medium() {
		$('#pwdLevel_1').attr('class', 'ywz_zhuce_hongxian');
		$('#pwdLevel_2').attr('class', 'ywz_zhuce_hongxian2');
		$('#pwdLevel_3').attr('class', 'ywz_zhuce_huixian');
	}

	function Tough() {
		$('#pwdLevel_1').attr('class', 'ywz_zhuce_hongxian');
		$('#pwdLevel_2').attr('class', 'ywz_zhuce_hongxian2');
		$('#pwdLevel_3').attr('class', 'ywz_zhuce_hongxian3');
	}




	function checkPassword(pwdinput) {
		var maths, smalls, bigs, corps, cat, num;
		var str = $(pwdinput).val()
		var len = str.length;

		var cat = /.{16}/g
		if (len == 0) return 1;
		if (len > 16) { $(pwdinput).val(str.match(cat)[0]); }
		cat = /.*[\u4e00-\u9fa5]+.*$/
		if (cat.test(str)) {
			return -1;
		}
		cat = /\d/;
		var maths = cat.test(str);
		cat = /[a-z]/;
		var smalls = cat.test(str);
		cat = /[A-Z]/;
		var bigs = cat.test(str);
		var corps = corpses(pwdinput);
		var num = maths + smalls + bigs + corps;

		if (len < 6) { return 1; }

		if (len >= 6 && len <= 8) {
			if (num == 1) return 1;
			if (num == 2 || num == 3) return 2;
			if (num == 4) return 3;
		}

		if (len > 8 && len <= 11) {
			if (num == 1) return 2;
			if (num == 2) return 3;
			if (num == 3) return 4;
			if (num == 4) return 5;
		}

		if (len > 11) {
			if (num == 1) return 3;
			if (num == 2) return 4;
			if (num > 2) return 5;
		}
	}

	function corpses(pwdinput) {
		var cat = /./g
		var str = $(pwdinput).val();
		var sz = str.match(cat)
		for (var i = 0; i < sz.length; i++) {
			cat = /\d/;
			maths_01 = cat.test(sz[i]);
			cat = /[a-z]/;
			smalls_01 = cat.test(sz[i]);
			cat = /[A-Z]/;
			bigs_01 = cat.test(sz[i]);
			if (!maths_01 && !smalls_01 && !bigs_01) { return true; }
		}
		return false;
	}
</script>