ASP.NET - Javascript for check password strength

can any one give me script for checking password strength 

Google is your friend. 

Use this function
 
   Call the below function CheckPassword() passing the password to be checked. The result is a string representing the password strength, from "Very Weak" to "Very Strong". You can show this text in a label and also block the form if the password strength is not strong or at least medium.


<div>
      Password:
      <input type="text" onchange="PasswordChanged(this)" />
      <span id="PasswordStrength"></span>
      <br />
      <input type="button" value="Check" onclick="return ButtonClicked()" />
    </div>

Hope this helps

For more info refer these links using jQuery

http://

http://
http://

HI
try this

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;

}

<div>

<input type="password" name="pass" id="pass" onkeyup="passwordStrength(this.value)" />

</div>

refer the links..more example here
http://passwordadvisor.com/CodeAspNet.aspx
http://codeassembly.com/How-to-make-a-password-strength-meter-for-your-register-form/

HI
try this

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;

}

<div>

<input type="password" name="pass" id="pass" onkeyup="passwordStrength(this.value)" />

</div>

refer the links..more example here
http://passwordadvisor.com/CodeAspNet.aspx
http://codeassembly.com/How-to-make-a-password-strength-meter-for-your-register-form/

my question is that even user enter the wrong password when he press submit button he got transfer on another page ,i want message should come to say please enter correct password