var RSV = Class.create ();
RSV.prototype =
{
options:{
  }
, returnHash: [], initialize:function ()
  {
  var opts = Object.extend ({ formID: "", rules: [], displayType: "alert-all", errorFieldClass: null, errorTextIntro: "Please fix the following error(s) and resubmit:", errorJSItemBullet: "* ", errorHTMLItemBullet: "• ", errorTargetElementId: "rsvErrors", onCompleteHandler: null, customErrorHandler:null }
            , arguments[0] || { }
    );
    if (!opts.formID)
      {
  alert ("The formID configuration setting is required.");
  return false;
      }
    if ($ (opts.formID))
      this.options = opts;
  }
, validate:function ()
  {
    var form = $ (this.options.formID);
    var rules = this.options.rules;
    this.returnHash =[];
    for (var i = 0; i < rules.length; i++)
      {
  var row = rules[i].replace (/\\, /ig, "%%C%%");
  row = row.split (",");
  var satisfiesIfConditions = true;
  while (row[0].match ("^if:"))
    {
      var cond = row[0];      
      cond = cond.replace ("if:", "");
      var comparison = "equal";
      var parts =[];
      if (cond.search ("!=") != -1)
        {
    parts = cond.split ("!=");
    comparison = "not_equal";
        }
      else
        parts = cond.split ("=");
      var fieldToCheck = parts[0];
      var valueToCheck = parts[1];
      var fieldnameValue = "";
      if (typeof (form[fieldToCheck].type) == "undefined")
        {
    for (var j = 0; j < form[fieldToCheck].length; j++)
      {
        if (form[fieldToCheck][j].checked)
          fieldnameValue = form[fieldToCheck][j].value;
      }
        }
      else if (form[fieldToCheck].type == "checkbox")
        {
    if (form[fieldToCheck].checked)
      fieldnameValue = form[parts[0]].value;
        }
      else
        fieldnameValue = form[parts[0]].value;
      if (comparison == "equal" && fieldnameValue != valueToCheck)
        {
    satisfiesIfConditions = false;
    break;
        }
      else if (comparison == "not_equal"
         && fieldnameValue == valueToCheck)
        {
    satisfiesIfConditions = false;
    break;
        }
      else
        row.shift ();
    }
  if (!satisfiesIfConditions)
    continue;
  var requirement = row[0];
  var fieldName = row[1];
  var fieldName2, fieldName3, errorMessage, lengthRequirements,
    date_flag;
  if (requirement != "function"
      && typeof (form[fieldName]) == "undefined")
    {
      alert ("RSV Error: the field \"" + fieldName +
       "\" doesn't exist! Please check your form and settings.");
      return false;
    }
  if (requirement != "function" && this.options.errorFieldClass)
    {
      if (typeof (form[fieldName].type) == "undefined")
        {
    for (var j = 0; j < form[fieldName].length; j++)
      $ (form[fieldName][j]).removeClassName (this.options.
                errorFieldClass);
        }
      else
        $ (form[fieldName]).removeClassName (this.options.
               errorFieldClass);
    }
  if (row.length == 6)
    {
      fieldName2 = row[2];
      fieldName3 = row[3];
      date_flag = row[4];
      errorMessage = row[5];
    }
  else if (row.length == 5)
    {
      fieldName2 = row[2];
      fieldName3 = row[3];
      errorMessage = row[4];
    }
  else if (row.length == 4)
    {
      fieldName2 = row[2];
      errorMessage = row[3];
    }
  else
    errorMessage = row[2];
  if (requirement.match ("^length"))
    {
      lengthRequirements = requirement;
      requirement = "length";
    }
  if (requirement.match ("^range"))
    {
      rangeRequirements = requirement;
      requirement = "range";
    }
  switch (requirement)
    {
    case "required":
      if (typeof (form[fieldName].type) == "undefined")
        {
    var oneIsChecked = false;
    for (var j = 0; j < form[fieldName].length; j++)
      {
        if (form[fieldName][j].checked)
          oneIsChecked = true;
      }
    if (!oneIsChecked)
      {
        if (!this.processError (form[fieldName], errorMessage))
          return false;
      }
        }
      else if (form[fieldName].type == "select-multiple")
        {
    var oneIsSelected = false;
    for (var k = 0; k < form[fieldName].length; k++)
      {
        if (form[fieldName][k].selected)
          oneIsSelected = true;
      }
    if (!oneIsSelected || form[fieldName].length == 0)
      {
        if (!this.processError (form[fieldName], errorMessage))
          return false;
      }
        }
      else if (form[fieldName].type == "checkbox")
        {
    if (!form[fieldName].checked)
      {
        if (!this.processError (form[fieldName], errorMessage))
          return false;
      }
        }
      else if (!form[fieldName].value)
        {
    if (!this.processError (form[fieldName], errorMessage))
      return false;
        }
      break;
    case "digits_only":
      if (form[fieldName].value && form[fieldName].value.match (/\D /))
        {
    if (!this.processError (form[fieldName], errorMessage))
      return false;
        }
      break;
    case "letters_only":
      if (form[fieldName].value
    && form[fieldName].value.match (/[^a - zA - Z] /))
        {
    if (!this.processError (form[fieldName], errorMessage))
      return false;
        }
      break;
    case "is_alpha":
      if (form[fieldName].value && form[fieldName].value.match (/\W /))
        {
    if (!this.processError (form[fieldName], errorMessage))
      return false;
        }
      break;
    case "custom_alpha":
      var conversion =
      {
    "L": "[A-Z]", "V": "[AEIOU]", "l": "[a-z]", "v": "[aeiou]", "D": "[a-zA-Z]", "F": "[aeiouAEIOU]", "C": "[BCDFGHJKLMNPQRSTVWXYZ]", "x": "[0-9]", "c": "[bcdfghjklmnpqrstvwxyz]", "X": "[1-9]", "E":"[bcdfghjklmnpqrstvwxyzBCDFGHJKLMNPQRSTVWXYZ]"};
      var reg_exp_str = "";
      for (j = 0; j < fieldName2.length; j++)
        {
    if (conversion[fieldName2.charAt (j)])
      reg_exp_str += conversion[fieldName2.charAt (j)];
    else
      reg_exp_str += fieldName2.charAt (j);
        }
      var reg_exp = new RegExp (reg_exp_str);
      if (form[fieldName].value
    && reg_exp.exec (form[fieldName].value) == null)
        {
    if (!this.processError (form[fieldName], errorMessage))
      return false;
        }
      break;
    case "reg_exp":
      var reg_exp_str = fieldName2.replace (/%%C %% /ig, ",");
      if (row.length == 5)
        {
    var reg_exp = new RegExp (reg_exp_str, fieldName3);
        }
      else
        var reg_exp = new RegExp (reg_exp_str);
      if (form[fieldName].value
    && reg_exp.exec (form[fieldName].value) == null)
        {
    if (!this.processError (form[fieldName], errorMessage))
      return false;
        }
      break;
    case "length":
      comparison_rule = "";
      rule_string = "";
      if (lengthRequirements.match (/length=/))
        {
    comparison_rule = "equal";
    rule_string = lengthRequirements.replace ("length=", "");
        }
      else if (lengthRequirements.match (/length>=/))
        {
    comparison_rule = "greater_than_or_equal";
    rule_string = lengthRequirements.replace ("length>=", "");
        }
      else if (lengthRequirements.match (/length>/))
        {
    comparison_rule = "greater_than";
    rule_string = lengthRequirements.replace ("length>", "");
        }
      else if (lengthRequirements.match (/length<=/))
        {
    comparison_rule = "less_than_or_equal";
    rule_string = lengthRequirements.replace ("length<=", "");
        }
      else if (lengthRequirements.match (/length</))
        {
    comparison_rule = "less_than";
    rule_string = lengthRequirements.replace ("length<", "");
        }
      switch (comparison_rule)
        {
        case "greater_than_or_equal":
    if (!(form[fieldName].value.length >= parseInt (rule_string)))
      {
        if (!this.processError (form[fieldName], errorMessage))
          return false;
      }
    break;
        case "greater_than":
    if (!(form[fieldName].value.length > parseInt (rule_string)))
      {
        if (!this.processError (form[fieldName], errorMessage))
          return false;
      }
    break;
        case "less_than_or_equal":
    if (!(form[fieldName].value.length <= parseInt (rule_string)))
      {
        if (!this.processError (form[fieldName], errorMessage))
          return false;
      }
    break;
        case "less_than":
        alert(rule_string);
    if (!(form[fieldName].value.length < parseInt (rule_string)))
      {
        if (!this.processError (form[fieldName], errorMessage))
          return false;
      }
    break;
        case "equal":
    var range_or_exact_number = rule_string.match (/[^_] + /);
    var fieldCount = range_or_exact_number[0].split ("-");
    if (fieldCount.length == 2)
      {
        if (form[fieldName].value.length < fieldCount[0]
      || form[fieldName].value.length > fieldCount[1])
          {
      if (!this.
          processError (form[fieldName], errorMessage))
        return false;
          }
      }
    else
      {
        if (form[fieldName].value.length != fieldCount[0])
          {
      if (!this.
          processError (form[fieldName], errorMessage))
        return false;
          }
      }
    break;
        }
      break;
    case "valid_email":
      if (form[fieldName].value
    && !this.isValidEmail (form[fieldName].value))
        {
    if (!this.processError (form[fieldName], errorMessage))
      return false;
        }
      break;
    case "valid_date":
      var isLaterDate = false;
      if (date_flag == "later_date")
        isLaterDate = true;
      else if (date_flag == "any_date")
        isLaterDate = false;
      if (!this.
    isValidDate (form[fieldName].value, form[fieldName2].value,
           form[fieldName3].value, isLaterDate))
        {
    if (!this.processError (form[fieldName], errorMessage))
      return false;
        }
      break;
    case "same_as":
      if (form[fieldName].value != form[fieldName2].value)
        {
    if (!this.processError (form[fieldName], errorMessage))
      return false;
        }
      break;
    case "range":
      comparison_rule = "";
      rule_string = "";
      if (rangeRequirements.match (/range = /))
        {
    comparison_rule = "equal";
    rule_string = rangeRequirements.replace ("range=", "");
        }
      else if (rangeRequirements.match (/range >= /))
        {
    comparison_rule = "greater_than_or_equal";
    rule_string = rangeRequirements.replace ("range>=", "");
        }
      else if (rangeRequirements.match (/range > /))
        {
    comparison_rule = "greater_than";
    rule_string = rangeRequirements.replace ("range>", "");
        }
      else if (rangeRequirements.match (/range <= /))
        {
    comparison_rule = "less_than_or_equal";
    rule_string = rangeRequirements.replace ("range<=", "");
        }
      else if (rangeRequirements.match (/range < /))
        {
    comparison_rule = "less_than";
    rule_string = rangeRequirements.replace ("range<", "");
        }
      switch (comparison_rule)
        {
        case "greater_than_or_equal":
    if (!(form[fieldName].value >= Number (rule_string)))
      {
        if (!this.processError (form[fieldName], errorMessage))
          return false;
      }
    break;
        case "greater_than":
    if (!(form[fieldName].value > Number (rule_string)))
      {
        if (!this.processError (form[fieldName], errorMessage))
          return false;
      }
    break;
        case "less_than_or_equal":
    if (!(form[fieldName].value <= Number (rule_string)))
      {
        if (!this.processError (form[fieldName], errorMessage))
          return false;
      }
    break;
        case "less_than":
    if (!(form[fieldName].value < Number (rule_string)))
      {
        if (!this.processError (form[fieldName], errorMessage))
          return false;
      }
    break;
        case "equal":
    var rangeValues = rule_string.split ("-");
    if ((form[fieldName].value < Number (rangeValues[0]))
        || (form[fieldName].value > Number (rangeValues[1])))
      {
        if (!this.processError (form[fieldName], errorMessage))
          return false;
      }
    break;
        }
      break;
    case "function":
      custom_function = fieldName;
      eval ("var result = " + custom_function + "()");
      if (result.constructor.toString ().indexOf ("Array") != -1)
        {
    for (var j = 0; j < result.length; j++)
      {
        if (!this.processError (result[j][0], result[j][1]))
          return false;
      }
        }
      break;
    default:
      alert ("Unknown requirement flag in validateFields(): " +
       requirement);
      return false;
    }
      }
    if (typeof this.options.customErrorHandler == 'function')
      {
  return this.options.customErrorHandler (form, this.returnHash);
      }
    else if (this.options.displayType == "alert-all")
      {
  var errorStr = this.options.errorTextIntro + "\n\n";
  for (var i = 0; i < this.returnHash.length; i++)
    {
      errorStr +=
        this.options.errorJSItemBullet + this.returnHash[i][1] + "\n";
      this.styleField (this.returnHash[i][0], i == 0);
    }
  if (this.returnHash.length > 0)
    {
      alert (errorStr);
      return false;
    }
      }
    else if (this.options.displayType == "display-html")
      {
  var success = this.displayHTMLErrors (form, this.returnHash);
  if (!success)
    return false;
      }
    if (typeof this.options.onCompleteHandler == 'function')
      return this.options.onCompleteHandler ();
    else
      return true;
  }
, processError:function (obj, message)
  {
    message = message.replace (/%%C %% /ig, ",");
    var continueProcessing = true;
    switch (this.options.displayType)
      {
      case "alert-one":
  alert (message);
  this.styleField (obj, true);
  continueProcessing = false;
  break;
      case "alert-all":
      case "display-html":
  this.returnHash.push ([obj, message]);
  break;
      }
    return continueProcessing;
  }
, displayHTMLErrors:function (f, errorInfo)
  {
    var errorHTML = this.options.errorTextIntro + "<br /><br />";
    for (var i = 0; i < errorInfo.length; i++)
      {
  errorHTML +=
    this.options.errorHTMLItemBullet + errorInfo[i][1] + "<br />";
  this.styleField (errorInfo[i][0], i == 0);
      }
    if (errorInfo.length > 0)
      {
  $ (this.options.errorTargetElementId).style.display = "block";
  $ (this.options.errorTargetElementId).innerHTML = errorHTML;
  return false;
      }
    return true;
  }
, styleField:function (field, focus)
  {
    if (typeof (field.type) == "undefined")
      {
  if (focus)
    field[0].focus ();
  for (var i = 0; i < field.length; i++)
    $ (field[i]).addClassName (this.options.errorFieldClass);
      }
    else
      {
  if (this.options.errorFieldClass)
    $ (field).addClassName (this.options.errorFieldClass);
  if (focus)
    field.focus ();
      }
  }
, isValidEmail:function (str)
  {
    var s = str.strip ();
    var at = "@";
    var dot = ".";
    var lat = s.indexOf (at);
    var lstr = s.length;
    var ldot = s.indexOf (dot);
    if (s.indexOf (at) == -1
  || (s.indexOf (at) == -1 || s.indexOf (at) == 0
      || s.indexOf (at) == lstr) || (s.indexOf (dot) == -1
             || s.indexOf (dot) == 0
             || s.indexOf (dot) == lstr)
  || (s.indexOf (at, (lat + 1)) != -1)
  || (s.substring (lat - 1, lat) == dot
      || s.substring (lat + 1, lat + 2) == dot)
  || (s.indexOf (dot, (lat + 2)) == -1) || (s.indexOf (" ") != -1))
      {
  return false;
      }
    return true;
  }
, isValidDate:function (month, day, year, isLaterDate)
  {
    var daysInMonth;
    if ((year % 4 == 0) && ((year % 100 != 0) || (year % 400 == 0)))
      daysInMonth =[31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
    else
      daysInMonth =[31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
    if (!month || !day || !year)
      return false;
    if (1 > month || month > 12)
      return false;
    if (year < 0)
      return false;
    if (1 > day || day > daysInMonth[month - 1])
      return false;
    if (isLaterDate)
      {
  var today = new Date ();
  var currMonth = today.getMonth () + 1;
  var currDay = today.getDate ();
  var currYear = today.getFullYear ();
  if (String (currMonth).length == 1)
    currMonth = "0" + currMonth;
  if (String (currDay).length == 1)
    currDay = "0" + currDay;
  var currDate =
    String (currYear) + String (currMonth) + String (currDay);
  if (String (month).length == 1)
    month = "0" + month;
  if (String (day).length == 1)
    day = "0" + day;
  incomingDate = String (year) + String (month) + String (day);
  if (Number (currDate) > Number (incomingDate))
    return false;
      }
    return true;
  }
}