ÿþ// Set character sets:

var numeric                = "0123456789";

var numericCalculate       = "0123456789+-*/= ";

var numericTelephone       = "0123456789+() ";

var numericTime            = "0123456789:";

var hexadecimalLower       = "abcdef0123456789";

var hexadecimalUpper       = "ABCDEF0123456789";

var hexadecimalBoth        = "abcdefABCDEF0123456789";

var alphanumericCarReg     = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";

var alphanumericURL        = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-%&+=:@~#.?_/\\";

var alphanumericEmail      = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-!$%^&*+={}@~#|.?_/\'`";

var alphanumericRoom       = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.";

var alphanumericLower      = "abcdefghijklmnopqrstuvwxyz’
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var alphanumericLowerSpace = "abcdefghijklmnopqrstuvwxyz’
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var alphanumericUpper      = "ABCDEFGHIJKLMNOPQRSTUVWXYZ`
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0123456789";

var alphanumericUpperSpace = "ABCDEFGHIJKLMNOPQRSTUVWXYZ`
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0123456789\n\r\t ";

var alphanumericBoth       = "abcdefghijklmnopqrstuvwxyz’
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var alphanumericBothSpace  = "abcdefghijklmnopqrstuvwxyz’
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var alphaLower             = "abcdefghijklmnopqrstuvwxyz’
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var alphaLowerSpace        = "abcdefghijklmnopqrstuvwxyz’
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var alphaUpper             = "ABCDEFGHIJKLMNOPQRSTUVWXYZ`
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var alphaUpperSpace        = "ABCDEFGHIJKLMNOPQRSTUVWXYZ`
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var alphaBoth              = "abcdefghijklmnopqrstuvwxyz’
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var alphaBothSpace         = "abcdefghijklmnopqrstuvwxyz’
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var alphaNameSpace         = "abcdefghijklmnopqrstuvwxyz’
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var fullSet                = "abcdefghijklmnopqrstuvwxyz’
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0123456789-  !¬ £$¤¥¢%0 ¼½¾^&*()+=×÷±{}[]:;@~#|<>,.?  ! °¹²³µ¶©®"!§_/\\`\'\"\ \ \ \ ";

var fullSetSpace           = "abcdefghijklmnopqrstuvwxyz’
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0123456789-  !¬ £$¤¥¢%0 ¼½¾^&*()+=×÷±{}[]:;@~#|<>,.?  ! °¹²³µ¶©®"!§_/\\`\'\"\ \ \ \ \n\r\t ";

var fullSetSecure          = "abcdefghijklmnopqrstuvwxyz’
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var fullSetSecureSpace     = "abcdefghijklmnopqrstuvwxyz’
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// abcdefghijklmnopqrstuvwxyz

// ’
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// ABCDEFGHIJKLMONPQRSTUVWXYZ

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// 0123456789

// -  !¬ £$¤¥¢%0 ¼½¾^&*()+=×÷±{}[]:;@~#|<>,.?  ! °¹²³µ¶©®"!§_/\\

// \'\"\ \ \ \ 

// \n\r\t





// Check if something was entered in the input field:

function validateTextNotEmpt(form,formField,formFieldDesc)

{

  if (document.forms[form].elements[formField].value == "")

  {

    alert('You must enter something into the \"' + formFieldDesc + '\" field!');

    document.forms[form].elements[formField].focus();

    return (false);

  }

  else

  {

    return (true);

  }

}





// Check if there are too few characters in the input field:

function validateTextMinimum(form,formField,formFieldDesc,formFieldMinChar)

{

  if (document.forms[form].elements[formField].value.length < formFieldMinChar)

  {

    alert('You must enter something into the \"' + formFieldDesc + '\" field, containing no less than ' + formFieldMinChar + ' characters!');

    document.forms[form].elements[formField].focus();

    return (false);

  }

  else

  {

    return (true);

  }

}





// Check if there are too many characters in the input field:

function validateTextMaximum(form,formField,formFieldDesc,formFieldMaxChar)

{

  if (document.forms[form].elements[formField].value.length > formFieldMaxChar)

  {

    alert('You must enter something into the \"' + formFieldDesc + '\" field, containing no more than ' + formFieldMaxChar + ' characters!');

    document.forms[form].elements[formField].focus();

    return (false);

  }

  else

  {

    return (true);

  }

}





// Check if there is an email address in the input field:

function validateTextIsEmail(form,formField,formFieldDesc)

{

  var textCheck = false;

  // Check if something was entered in the input field:

  if (document.forms[form].elements[formField].value != "")

  {

    with (document.forms[form].elements[formField])

    {

      // Check that the input field contains at least an @ sign and a dot (.).

      // The @ must not be the first character of the email address.

      // The last dot must at least be one character after the @ sign:

      var atpos = value.indexOf("@");

      var dotpos = value.lastIndexOf(".");

      if (atpos < 1 || dotpos - atpos < 2)

      {

        textCheck = true;

      }

    }

  }

  if (textCheck)

  {

    alert('You must enter something into the \"' + formFieldDesc + '\" field, in the form of a valid email address!\n\nExample: user@domain.com');

    document.forms[form].elements[formField].focus();

    return (false);

  }

  else

  {

    return (true);

  }

}





// Check if a tick has been entered in the input field:

function validateCheckbox(form,formField,formFieldDesc)

{

  if (!document.forms[form].elements[formField].checked)

  {

    alert('You must check the \"' + formFieldDesc + '\" box!');

    document.forms[form].elements[formField].focus();

    return (false);

  }

  else

  {

    return (true);

  }

}





// Check if a radio button has been selected in the input field:

function validateRadio(form,formField,formFieldDesc)

{

  var radioSelected = false;

  var increment;

  for (increment = 0; increment < document.forms[form].elements[formField].length; increment ++)

  {

    if (document.forms[form].elements[formField][increment].checked)

    {

      radioSelected = true;

    }

  }

  if (!radioSelected)

  {

    alert('You must choose one of the \"' + formFieldDesc + '\" options!');

    return (false);

  }

  else

  {

    return (true);

  }

}





// Check if an option has been selected:

function validateSelectChoose(form,formField,formFieldDesc)

{

  if (document.forms[form].elements[formField].selectedIndex < 0)

  {

    alert('You must choose one of the \"' + formFieldDesc + '\" options!');

    document.forms[form].elements[formField].focus();

    return (false);

  }

  else

  {

    return (true);

  }

}





// Check if an option, other than the first one, has been selected:

function validateSelectSecond(form,formField,formFieldDesc)

{

  if (document.forms[form].elements[formField].selectedIndex == 0)

  {

    alert('You cannot choose the first of the \"' + formFieldDesc + '\" options!');

    document.forms[form].elements[formField].focus();

    return (false);

  }

  else

  {

    return (true);

  }

}





// Check if there are illegal characters in the input field:

function validateTextContain(form,formField,formFieldDesc,formChar)

{

  var textCheck = false;

  // Set the most common character sets:

  if      (formChar == "numeric")                { formChar = numeric; }

  else if (formChar == "numericCalculate")       { formChar = numericCalculate; }

  else if (formChar == "numericTelephone")       { formChar = numericTelephone; }

  else if (formChar == "numericTime")            { formChar = numericTime; }

  else if (formChar == "hexadecimalLower")       { formChar = hexadecimalLower; }

  else if (formChar == "hexadecimalUpper")       { formChar = hexadecimalUpper; }

  else if (formChar == "hexadecimalBoth")        { formChar = hexadecimalBoth; }

  else if (formChar == "alphanumericCarReg")     { formChar = alphanumericCarReg; }

  else if (formChar == "alphanumericURL")        { formChar = alphanumericURL; }

  else if (formChar == "alphanumericEmail")      { formChar = alphanumericEmail; }

  else if (formChar == "alphanumericRoom")       { formChar = alphanumericRoom; }

  else if (formChar == "alphanumericLower")      { formChar = alphanumericLower; }

  else if (formChar == "alphanumericLowerSpace") { formChar = alphanumericLowerSpace; }

  else if (formChar == "alphanumericUpper")      { formChar = alphanumericUpper; }

  else if (formChar == "alphanumericUpperSpace") { formChar = alphanumericUpperSpace; }

  else if (formChar == "alphanumericBoth")       { formChar = alphanumericBoth; }

  else if (formChar == "alphanumericBothSpace")  { formChar = alphanumericBothSpace; }

  else if (formChar == "alphaLower")             { formChar = alphaLower; }

  else if (formChar == "alphaLowerSpace")        { formChar = alphaLowerSpace; }

  else if (formChar == "alphaUpper")             { formChar = alphaUpper; }

  else if (formChar == "alphaUpperSpace")        { formChar = alphaUpperSpace; }

  else if (formChar == "alphaBoth")              { formChar = alphaBoth; }

  else if (formChar == "alphaBothSpace")         { formChar = alphaBothSpace; }

  else if (formChar == "alphaNameSpace")         { formChar = alphaNameSpace; }

  else if (formChar == "fullSet")                { formChar = fullSet; }

  else if (formChar == "fullSetSpace")           { formChar = fullSetSpace; }

  else if (formChar == "fullSetSecure")          { formChar = fullSetSecure; }

  else if (formChar == "fullSetSecureSpace")     { formChar = fullSetSecureSpace; }

  else                                           { formChar = formChar; }

  // Check formField for illegal characters from formChar:

  for (increment = 0; increment < document.forms[form].elements[formField].value.length; increment ++)

  {

    var ch = document.forms[form].elements[formField].value.charAt(increment);

    var increment;

    var position;

    for (position = 0; position < formChar.length; position ++)

    {

      if (ch == formChar.charAt(position))

      {

        break;

      }

    }

    if (position == formChar.length)

    {

      textCheck = true;

      break;

    }

  }

  if (textCheck)

  {

    alert('You must enter something into the \"' + formFieldDesc + '\" field, using only valid characters!\n\n\If you are copying and pasting from another source, such as an email, please ensure that you only include the necessary characters.\n\nExample: ' + formChar);

    document.forms[form].elements[formField].focus();

    return (false);

  }

  else

  {

    return (true);

  }

}





// Strip out high numbered (non=Latin) unicode characters to allow form field submission to a database field using varchar:

function charCleanup(form,formField,formFieldDesc,formChar)

{

  var textCheck  = false;

  var textOutput = ''

  // Set the most common character sets:

  if      (formChar == "numeric")                { formChar = numeric; }

  else if (formChar == "numericCalculate")       { formChar = numericCalculate; }

  else if (formChar == "numericTelephone")       { formChar = numericTelephone; }

  else if (formChar == "numericTime")            { formChar = numericTime; }

  else if (formChar == "hexadecimalLower")       { formChar = hexadecimalLower; }

  else if (formChar == "hexadecimalUpper")       { formChar = hexadecimalUpper; }

  else if (formChar == "hexadecimalBoth")        { formChar = hexadecimalBoth; }

  else if (formChar == "alphanumericCarReg")     { formChar = alphanumericCarReg; }

  else if (formChar == "alphanumericURL")        { formChar = alphanumericURL; }

  else if (formChar == "alphanumericEmail")      { formChar = alphanumericEmail; }

  else if (formChar == "alphanumericRoom")       { formChar = alphanumericRoom; }

  else if (formChar == "alphanumericLower")      { formChar = alphanumericLower; }

  else if (formChar == "alphanumericLowerSpace") { formChar = alphanumericLowerSpace; }

  else if (formChar == "alphanumericUpper")      { formChar = alphanumericUpper; }

  else if (formChar == "alphanumericUpperSpace") { formChar = alphanumericUpperSpace; }

  else if (formChar == "alphanumericBoth")       { formChar = alphanumericBoth; }

  else if (formChar == "alphanumericBothSpace")  { formChar = alphanumericBothSpace; }

  else if (formChar == "alphaLower")             { formChar = alphaLower; }

  else if (formChar == "alphaLowerSpace")        { formChar = alphaLowerSpace; }

  else if (formChar == "alphaUpper")             { formChar = alphaUpper; }

  else if (formChar == "alphaUpperSpace")        { formChar = alphaUpperSpace; }

  else if (formChar == "alphaBoth")              { formChar = alphaBoth; }

  else if (formChar == "alphaBothSpace")         { formChar = alphaBothSpace; }

  else if (formChar == "alphaNameSpace")         { formChar = alphaNameSpace; }

  else if (formChar == "fullSet")                { formChar = fullSet; }

  else if (formChar == "fullSetSpace")           { formChar = fullSetSpace; }

  else if (formChar == "fullSetSecure")          { formChar = fullSetSecure; }

  else if (formChar == "fullSetSecureSpace")     { formChar = fullSetSecureSpace; }

  else                                           { formChar = formChar; }

  // Check formField for illegal characters from formChar:

  for (increment = 0; increment < document.forms[form].elements[formField].value.length; increment ++)

  {

    var ch = document.forms[form].elements[formField].value.charAt(increment);

    var increment;

    var position;

    for (position = 0; position < formChar.length; position ++)

    {

      if (ch == formChar.charAt(position))

      {

        textOutput = textOutput + ch;

        break;

      }

    }

    if (position == formChar.length)

    {

      // Replace high numbered unicode characters with %XXXX values (optional):

      //textOutput = textOutput + escape(ch);

      textCheck = true;

    }

  }

  // Inject cleaned text back into textarea box:

  document.forms[form].elements[formField].value = textOutput;

  if (textCheck)

  {

    alert('Illegal (non-Latin) characters removed from the \"' + formFieldDesc + '\" field.');

  }

  // Scroll to bottom of textarea box:

  document.forms[form].elements[formField].scrollTop = document.forms[form].elements[formField].scrollHeight;

}





// Textarea character counter:

function characterCount(textEntered,maxLength,ID)

{

  // Can the browser handle DOM objects?

  if (document.getElementById)

  {

    // Yes, the browser can handle DOM objects, so continue:

    var length = new String(textEntered.value).length;

    // Has a maximium length been supplied?

    if (maxLength > 0)

    {

      // Has the maximum been exceded?

      if (maxLength < length)

      {

        document.getElementById(ID).innerHTML = '(<strong>Warning:</strong> You have exceded the maximum of ' + maxLength + ' characters!)';

      }

      else

      {

        document.getElementById(ID).innerHTML = '(' + length + ' characters entered, with a maximum of ' + maxLength + ' characters!)';

      }

    }

    else

    {

      document.getElementById(ID).innerHTML = '(' + length + ' characters entered!)';

    }

  }

}