Проверка "стойкости" введенного пароля

// Check password
function checkPassword(strPassword)
{
// Reset combination count
var nScore = 0;

// Password length
// -- Less than 4 characters
if (strPassword.length < 5)
{
nScore += 5;
}
// -- 5 to 7 characters
else if (strPassword.length > 4 && strPassword.length < 8)
{
nScore += 10;
}
// -- 8 or more
else if (strPassword.length > 7)
{
nScore += 25;
}

// Letters
var nUpperCount = countContain(strPassword, m_strUpperCase);
var nLowerCount = countContain(strPassword, m_strLowerCase);
var nLowerUpperCount = nUpperCount + nLowerCount;
// -- Letters are all lower case
if (nUpperCount == 0 && nLowerCount != 0)
{
nScore += 10;
}
// -- Letters are upper case and lower case
else if (nUpperCount != 0 && nLowerCount != 0)
{
nScore += 20;
}

// Numbers
var nNumberCount = countContain(strPassword, m_strNumber);
// -- 1 number
if (nNumberCount == 1)
{
nScore += 10;
}
// -- 3 or more numbers
if (nNumberCount >= 3)
{
nScore += 20;
}

// Characters
var nCharacterCount = countContain(strPassword, m_strCharacters);
// -- 1 character
if (nCharacterCount == 1)
{
nScore += 10;
}
// -- More than 1 character
if (nCharacterCount > 1)
{
nScore += 25;
}

// Bonus
// -- Letters and numbers
if (nNumberCount != 0 && nLowerUpperCount != 0)
{
nScore += 2;
}
// -- Letters, numbers, and characters
if (nNumberCount != 0 && nLowerUpperCount != 0 && nCharacterCount != 0)
{
nScore += 3;
}
// -- Mixed case letters, numbers, and characters
if (nNumberCount != 0 && nUpperCount != 0 && nLowerCount != 0 && nCharacterCount != 0)
{
nScore += 5;
}


return nScore;
}

// Runs password through check and then updates GUI
function runPassword(strPassword, strFieldID)
{
// Check password
var nScore = checkPassword(strPassword);

// Get controls
var ctlBar = document.getElementById(strFieldID + "_bar");
var ctlText = document.getElementById(strFieldID + "_text");
if (!ctlBar || !ctlText)
return;

// Set new width
ctlBar.style.width = nScore + "%";

// Color and text
// -- Безупречный
if (nScore >= 90)
{
var strText = "Отличный пароль! Главное не забыть его :-)";
var strColor = "#0ca908";
}
// -- Хороший
else if (nScore >= 80)
{
var strText = "Хороший";
var strColor = "#00CCFF";
}
// -- Давольно нормальный
else if (nScore >= 70)
{
var strText = "Достаточно неплохо";
var strColor = "#5a74e3";
}
// -- Нормальный
else if (nScore >= 50)
{
var strText = "Нормально";
var strColor = "#FF6600";
}
// -- Слабый
else if (nScore >= 25)
{
var strText = "Слабенько";
var strColor = "#e7d61a";
}
// -- Очень плохой
else
{
var strText = "Ужас. qwertyui и то лучше :-)";
var strColor = "#e71a1a";
}
ctlBar.style.backgroundColor = strColor;
ctlText.innerHTML = "<span style='color: " + strColor + ";'>" + strText + " - " + nScore + "%</span>";
}

// Checks a string for a list of characters
function countContain(strPassword, strCheck)
{
// Declare variables
var nCount = 0;

for (i = 0; i < strPassword.length; i++)
{
if (strCheck.indexOf(strPassword.charAt(i)) > -1)
{
nCount++;
}
}

return nCount;
}
</script>

<table border="0" cellspacing="1" cellpadding="2" width="100%" class="manTable" id="siM63">
%IF($ERROR$)%
<tr id="siM1"><td colspan="2" align="center" class="manTdError" id="siM2">$ERROR$</td></tr><tr><td height="10" class="manTdSep" colspan="2"><hr class="manHr" /></td></tr>
%ENDIF%
%IF($LOGIN_FL$)%
<tr id="siM42"><td class="manTd1" width="35%" id="siM43">$LOGIN_SIGN$</td><td class="manTd2" id="siM44">$LOGIN_FL$</td></tr><tr><td height="10" class="manTdSep" colspan="2"><hr class="manHr" /></td></tr>
%ENDIF%
%IF($PASSWORD_FL$)%
<tr id="siM45"><td class="manTd1" id="siM46">$PASSWORD_SIGN$</td><td class="manTd2" id="siM47"><input id="siF14" class="manFlPassw" name="password" size="20" style="width: 100%;" maxlength="15" type="password" onkeyup="runPassword(this.value, 'mypassword');"></td></tr>
%ENDIF%
%IF($PASSWORD1_FL$)%
<tr id="siM48"><td class="manTd1" id="siM49">$PASSWORD1_SIGN$</td><td class="manTd2" id="siM50">$PASSWORD1_FL$</td></tr>

<tr><td width="130" height="25">Защита пароля:</td>
<td><b><div id="mypassword_text"></b></div>
<div style="width: 99%;">
<div id="mypassword_bar" style="font-size: 1px; height: 2px; width: 0px; border: 1px solid white;"></div></div></td>
</div></td></tr>

<tr><td height="10" class="manTdSep" colspan="2"><hr class="manHr" /></td></tr>
%ELSE%<tr><td height="10" class="manTdSep" colspan="2"><hr class="manHr" /></td></tr>
%ENDIF%
%IF($GROUP_FL$)%
<tr id="siM70"><td class="manTd1" id="siM71">$GROUP_SIGN$</td><td class="manTd2" id="siM72">$GROUP_FL$</td></tr><tr><td height="10" class="manTdSep" colspan="2"><hr class="manHr" /></td></tr>
%ENDIF%
%IF($NAME_FL$)%
<tr id="siM51"><td class="manTd1" id="siM52">$NAME_SIGN$</td><td class="manTd2" id="siM53">$NAME_FL$</td></tr><tr><td height="10" class="manTdSep" colspan="2"><hr class="manHr" /></td></tr>
%ENDIF%
%IF($EMAIL_FL$)%
<tr id="siM54"><td class="manTd1" id="siM55">$EMAIL_SIGN$</td><td class="manTd2" id="siM56">$EMAIL_FL$</td></tr><tr><td height="10" class="manTdSep" colspan="2"><hr class="manHr" /></td></tr>
%ENDIF%
%IF($WWW_FL$)%
<tr id="siM3"><td class="manTd1" id="siM4">$WWW_SIGN$</td><td class="manTd2" id="siM5">$WWW_FL$</td></tr><tr><td height="10" class="manTdSep" colspan="2"><hr class="manHr" /></td></tr>
%ENDIF%
%IF($ICQ_FL$)%
<tr id="siM6"><td class="manTd1" id="siM7">$ICQ_SIGN$</td><td class="manTd2" id="siM8">$ICQ_FL$</td></tr><tr><td height="10" class="manTdSep" colspan="2"><hr class="manHr" /></td></tr>
%ENDIF%
%IF($AOL_FL$)%
<tr id="siM9"><td class="manTd1" id="siM10">$AOL_SIGN$</td><td class="manTd2" id="siM11">$AOL_FL$</td></tr><tr><td height="10" class="manTdSep" colspan="2"><hr class="manHr" /></td></tr>
%ENDIF%
%IF($MSN_FL$)%
<tr id="siM12"><td class="manTd1" id="siM13">$MSN_SIGN$</td><td class="manTd2" id="siM14">$MSN_FL$</td></tr><tr><td height="10" class="manTdSep" colspan="2"><hr class="manHr" /></td></tr>
%ENDIF%
%IF($YAHOO_FL$)%
<tr id="siM15"><td class="manTd1" id="siM16">$YAHOO_SIGN$</td><td class="manTd2" id="siM17">$YAHOO_FL$</td></tr><tr><td height="10" class="manTdSep" colspan="2"><hr class="manHr" /></td></tr>
%ENDIF%
%IF($BIRTHDAY_FL$)%
<tr id="siM30"><td class="manTd1" id="siM31">$BIRTHDAY_SIGN$</td><td class="manTd2" id="siM32">$BIRTHDAY_FL$</td></tr><tr><td height="10" class="manTdSep" colspan="2"><hr class="manHr" /></td></tr>
%ENDIF%
%IF($GENDER_FL$)%
<tr id="siM27"><td class="manTd1" id="siM28">$GENDER_SIGN$</td><td class="manTd2" id="siM29">$GENDER_FL$</td></tr><tr><td height="10" class="manTdSep" colspan="2"><hr class="manHr" /></td></tr>
%ENDIF%
%IF($COUNTRY_FL$)%
<tr id="siM18"><td class="manTd1" id="siM19">$COUNTRY_SIGN$</td><td class="manTd2" id="siM20">$COUNTRY_FL$</td></tr><tr><td height="10" class="manTdSep" colspan="2"><hr class="manHr" /></td></tr>
%ENDIF%
%IF($STATE_FL$)%
<tr id="siM21"><td class="manTd1" id="siM22">$STATE_SIGN$</td><td class="manTd2" id="siM23">$STATE_FL$</td></tr><tr><td height="10" class="manTdSep" colspan="2"><hr class="manHr" /></td></tr>
%ENDIF%
%IF($CITY_FL$)%
<tr id="siM24"><td class="manTd1" id="siM25">$CITY_SIGN$</td><td class="manTd2" id="siM26">$CITY_FL$</td></tr><tr><td height="10" class="manTdSep" colspan="2"><hr class="manHr" /></td></tr>
%ENDIF%
%IF($AVATAR_FL$)%
<tr id="siM36"><td class="manTd1" valign="top" id="siM37">$AVATAR_SIGN$</td><td class="manTd2" id="siM38">$AVATAR_FL$</td></tr><tr><td height="10" class="manTdSep" colspan="2"><hr class="manHr" /></td></tr>
%ENDIF%
%IF($SIGNATURE_FL$)%
<tr id="siM33"><td class="manTd1" id="siM34">$SIGNATURE_SIGN$</td><td class="manTd2" id="siM35">$SIGNATURE_FL$</td></tr><tr><td height="10" class="manTdSep" colspan="2"><hr class="manHr" /></td></tr>
%ENDIF%
%IF($SUBSCRIPTION_FL$)%
<tr id="siM39"><td class="manTd1" id="siM40">$SUBSCRIPTION_SIGN$</td><td class="manTd2" id="siM41">$SUBSCRIPTION_FL$</td></tr><tr><td height="10" class="manTdSep" colspan="2"><hr class="manHr" /></td></tr>
%ENDIF%
%IF($OPTIONS_FL$)%
<tr id="siM63"><td class="manTd1" id="siM64">$OPTIONS_SIGN$</td><td class="manTd2" id="siM65">$OPTIONS_FL$</td></tr><tr><td height="10" class="manTdSep" colspan="2"><hr class="manHr" /></td></tr>
%ENDIF%
%IF($SECURITY_CODE_FL$)%
<tr id="siM60"><td class="manTd1" id="siM61">$SECURITY_CODE_SIGN$</td><td class="manTd2" id="siM62">$SECURITY_CODE_FL$</td></tr><tr><td height="10" class="manTdSep" colspan="2"><hr class="manHr" /></td></tr>
%ENDIF%
<tr id="siM64"><td class="manTdBut" colspan="2" align="center" id="siM65"><input class="manFlSbm" id="siF20" type="submit" name="sbm" value="$SUBMIT_SIGN$" /></td></tr>
</table>