| <html>
<head>
<style>
body
{
/*ie needs this*/
margin:0px;
padding:0px;
/*set global font settings*/
font-size:10px;
font-family:Tahoma,Verdana,Arial;
}
a:hover
{
color:#fff;
}
#user_registration
{
border:1px solid #cccccc;
margin:auto auto;
margin-top:100px;
width:400px;
}
#user_registration label
{
display: block; /* block float the labels to left column, set a width */
float: left;
width: 70px;
margin: 0px 10px 0px 5px;
text-align: right;
line-height:1em;
font-weight:bold;
}
#user_registration input
{
width:250px;
}
#user_registration p
{
clear:both;
}
#submit
{
border:1px solid #cccccc;
width:100px !important;
margin:10px;
}
h1
{
text-align:center;
}
#passwordStrength
{
height:10px;
display:block;
float:left;
}
.strength0
{
width:250px;
background:#cccccc;
}
.strength1
{
width:50px;
background:#ff0000;
}
.strength2
{
width:100px;
background:#ff5f5f;
}
.strength3
{
width:150px;
background:#56e500;
}
.strength4
{
background:#4dcd00;
width:200px;
}
.strength5
{
background:#399800;
width:250px;
}
</style>
</style>
<script>
function passwordStrength(password)
{
var desc = new Array();
desc[0] = "Very Weak";
desc[1] = "Weak";
desc[2] = "Better";
desc[3] = "Medium";
desc[4] = "Strong";
desc[5] = "Strongest";
var score = 0;
//if password bigger than 6 give 1 point
if (password.length > 6) score++;
//if password has both lower and uppercase characters give 1 point
if ( ( password.match(/[a-z]/) ) && ( password.match(/[A-Z]/) ) ) score++;
//if password has at least one number give 1 point
if (password.match(/\d+/)) score++;
//if password has at least one special caracther give 1 point
if ( password.match(/.[!,@,#,$,%,^,&,*,?,_,~,-,(,)]/) ) score++;
//if password bigger than 12 give another 1 point
if (password.length > 12) score++;
document.getElementById("passwordDescription").innerHTML = desc[score];
document.getElementById("passwordStrength").className = "strength" + score;
}
</script>
</head>
<body>
<form method="post" action="" id="user_registration" name="user_registration">
<p><h1>Password strength metter</h1></p>
<p>
<label for="pass">Password</label><input type="password" name="pass" id="pass" onkeyup="passwordStrength(this.value)"/>
</p>
<p>
<label for="pass2">Confirm Password</label><input type="password" name="pass2" id="pass2"/>
</p>
<p>
<label for="passwordStrength">Password strength</label>
<div id="passwordDescription">Password not entered</div>
<div id="passwordStrength" class="strength0"></div>
</p>
<p>
<input type="submit" name="submit" id="submit" value="Register">
</p>
</form>
</body>
</html>
本篇文章来源于 cssrain.cn 原文链接：http://www.cssrain.cn/article.asp?id=30
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