text:  function CheckPasswordStrength(password) {
          var password_strength = document.getElementById("password_strength");
  
          //TextBox left blank.
          if (password.length == 0) {
              password_strength.innerHTML = "";
              return;
          }
  
          //Regular Expressions.
          var regex = new Array();
          regex.push("[A-Z]"); //Uppercase Alphabet.
          regex.push("[a-z]"); //Lowercase Alphabet.
          regex.push("[0-9]"); //Digit.
          regex.push("[$@$!%*#?&]"); //Special Character.
  
          var passed = 0;
  
          //Validate for each Regular Expression.
          for (var i = 0; i < regex.length; i++) {
              if (new RegExp(regex[i]).test(password)) {
                  passed++;
              }
          }
  
          //Validate for length of Password.
          if (passed > 2 && password.length > 8) {
              passed++;
          }
  
          //Display status.
          var color = "";
          var strength = "";
          switch (passed) {
              case 0:
              case 1:
                  strength = "Weak";
                  color = "red";
                  break;
              case 2:
                  strength = "Good";
                  color = "darkorange";
                  break;
              case 3:
              case 4:
                  strength = "Strong";
                  color = "green";
                  break;
              case 5:
                  strength = "Very Strong";
                  color = "darkgreen";
                  break;
          }
          password_strength.innerHTML = strength;
          password_strength.style.color = color;
      }
  