/***************************************************************************************************
*
*-- Form validation script by Peter Bailey, Copyright (c) 2001-2003
*  Version 5.01b
*  Updated on Feb 07, 2004
*  www.peterbailey.net
*  me@peterbailey.net
*
*  IF YOU USE THIS SCRIPT, GIVE ME CREDIT PLEASE =)
*
*  Visit http://www.peterbailey.net/fValidate/ for more info
*
*  Feel free to contact me with any questions, comments, problems, or suggestions
*
*  Note: This document most easily read with tab spacing set to 4
*
*******************************************************************************************************/

/*  Create static fvalidate object
------------------------------------------- */
if ( typeof fvalidate == 'undefined' )
{
  var fvalidate = new Object();
}

/*  Generic event handling
------------------------------------------- */
fvalidate.addEvent = function( obj, evt, fn, useCapture )
{
  if ( typeof obj.attachEvent != 'undefined' )
  {
    obj.attachEvent( "on" + evt, fn );
  }
  else if ( typeof obj.attachEventListener != 'undefined' )
  {
    obj.addEventListener( evt, fn, Boolean( useCapture ) );
  }
}
fvalidate.addEvents = function( obj, evts, fn, useCapture )
{
  var i = 0, evt;
  while( evt = evts[i++] )
  {
    this.addEvent( obj, evt, fn, Boolean( useCapture ) );
  }
}

/*  Main validation routine
------------------------------------------- */
function validateForm( f, bConfirm, bDisable, bDisableR, groupError, errorMode )
{
  //  Set defaults
  bConfirm  = Boolean( bConfirm );
  bDisable  = Boolean( bDisable );
  bDisableR  = Boolean( bDisableR );
  groupError  = Boolean( groupError );
  errorMode  = ( typeof errorMode != 'undefined' ) ? parseInt( errorMode, 10 ) : 0;

  //  Init vars and fValidate object
  var params, fvCode, type;
  if ( typeof f.fv == 'undefined' )
  {
    f.fv = new fValidate( f, errorMode, groupError );
  } else {    
    f.fv._reset();
    f.fv.errorMode = errorMode;
  }
  
  //  Loop through all form elements  
  var elem, i = 0, attr = f.fv.config.code;
  while ( elem = f.elements[i++] )
  {
    //  Skip fieldsets
    if ( elem.nodeName == "FIELDSET" ) continue;

    //  Does element have validator attribute? (short-circuit check) and is elem visible?
    fvCode      = ( elem[attr] ) ? elem[attr] : elem.getAttribute( attr );
	elemHid = false;
	elemParent = elem;
	while (document !== elemParent) {
        if ('none' == elemParent.style.display || 'hidden' == elemParent.style.visibility)
            elemHid = true;
       	elemParent = elemParent.parentNode;
    }
    if ( !( typeof fvCode == 'undefined' || fvCode == null || fvCode == "" || elemHid ) )
    {
      //  Set params, validation type, and validation state
      params      = fvCode.split( "|" );
      type      = params[0];
      elem.validated  = true;
      
      //  Valid validator type?
      if ( typeof f.fv[type] == 'undefined' )
      {        
        f.fv.devError( [type, elem.name], 'notFound' );
        return false;
      }
      
      //  Check for modifiers
      switch( params.last() )
      {        
        case 'bok'  :  //  bok requested
          params = params.reduce( 1, 1 );
          elem.bok = true;
          break;
        case 'if'  :  //  Conditional validation requested
          params = params.reduce( 1, 1 );
          elem._if_ = true;
          break;
        case 'then'  :  //  Conditional validation requested
          params = params.reduce( 1, 1 );
          elem._then_ = true;
          break;
        default    :  //  No modifiers
          params = params.reduce( 1, 0 );
        
      }

      //  Is element an array?
      if ( /radio|checkbox/.test( elem.type ) )
      {
        //  Set group property
        elem.group = f.elements[elem.name];
      }
      
      //  Add events if not already added
      if ( typeof elem.fName == 'undefined' )
      {
        //  If element is an array      
        if ( typeof elem.group != 'undefined' )
        {
          for ( var j = 0; j < elem.group.length; j++ )        
          {
            //  Apply event-function to each child
            if ( f.fv.config.clearEvent != null )
            {
            //  fvalidate.addEvent( elem.group.item( j ), fv.config.clearEvent, fv.revertError, false );
              addEvent( elem.group.item( j ), f.fv.config.clearEvent, f.fv, 'revertError', false );
            }
          }
        }
        else
        {
          //  Apply event-function to element
        //  fvalidate.addEvent( elem, fv.config.clearEvent, fv.revertError, false );
          addEvent( elem, f.fv.config.clearEvent, f.fv, 'revertError', false );
        }
      }
      
      //  Set formatted name, current element
      elem.fName  = elem.name.format();
      f.fv.elem    = elem;
      f.fv.type    = type;

      //  Create function to call the proper validator method of the fValidate class
      var func = new Function( "obj", "method", "obj[method]( " + params.toArgString() + " );" );
      func( f.fv, type );
    
      //  If element test failed AND group error is off, return false
      if ( elem.validated == false && groupError == false ) return false;
      
      //  Clear error if field okay
      if ( elem.validated == true ) f.fv.revertError();
    }
  } //  end of element loop
  
  //  If group error, show it
  if ( groupError ) f.fv.showGroupError();

  //  Return false if errors found
  if ( f.fv.errors.length > 0 ) return false;

  //  Show pre-submission confirmation
  if ( bConfirm && !confirm( f.fv.config.confirmMsg ) )
  {
    if ( f.fv.config.confirmAbortMsg != '' ) alert( f.fv.config.confirmAbortMsg );
    return false;
  }
  
  //  Disable reset and/or submit buttons if requested
  if ( bDisable ) 
  {
    if ( typeof f.fv.config.submitButton == 'object' )
    {
      var sb, j = 0;
      while( sb = f.fv.config.submitButton[j++] )
      {
        if ( f.fv.elementExists( sb ) )
        {
          f.elements[sb].disabled = true;
        }
      }
    }
    else if ( f.fv.elementExists( f.fv.config.submitButton ) )
    {
      f.elements[f.fv.config.submitButton].disabled = true;
    }
  }
  if ( bDisableR && f.fv.elementExists( f.fv.config.resetButton ) )
  {
    f.elements[f.fv.config.resetButton].disabled = true;
  }

  //  Successful Validation.  Submit form
  return true;
  
  function addEvent( elem, evt, obj, method, capture )
  {
    var self = elem;
    if ( typeof elem.attachEvent != 'undefined' )
    {
      elem.attachEvent( "on" + evt, function() { obj[method]( self ) } );
    }
    else if ( typeof elem.addEventListener != 'undefined' )
    {
      elem.addEventListener( evt, function() { obj[method]( self ) }, capture );
    }
    else if ( f.fv.config.eventOverride )
    {
      eleme['on' + evt] = function() { obj[method]( self ) };
    }
  }
}

/*  Constructor
------------------------------------------- */
function fValidate( f, errorMode, groupError )
{
  var self        = this;
  this.form       = f;
  this.errorMode  = errorMode;
  this.groupError = groupError;
  this.errors     = new Array();
  this.validated  = true;
  this.config     = new fValConfig();
  this.i18n    = fvalidate.i18n;
  
  //  Add reset action to clear visual error cues
  f.onreset = function()
  {
    var elem, i = 0;
    while ( elem = this.elements[i++] )
    {
      self.revertError( elem );
    }
  }
  
  addLabelProperties();
  
  //  Parses form and adds label properties to elements that have one specified
  function addLabelProperties()
  {
    //  Collect all label elements in form, init vars    
    if ( typeof f.getElementsByTagName == 'undefined' ) return;
    var labels = f.getElementsByTagName( "label" );
    var label, i = j = 0;
    var elem;

    //  Loop through labels retrieved
    while ( label = labels[i++] )
    {
      //  For Opera 6
      if ( typeof label.htmlFor == 'undefined' ) return;
      
      //  Retrieve element
      elem = f.elements[label.htmlFor];
      if ( typeof elem == 'undefined' )
      {  //  No element found for label        
        self.devError( [label.htmlFor], 'noLabel' );
      }
      else if ( typeof elem.label != 'undefined' )
      {  //  label property already added
        continue;
      }
      else if ( typeof elem.length != 'undefined' && elem.length > 1 && elem.nodeName != 'SELECT' )
      {  //  For arrayed elements
        for ( j = 0; j < elem.length; j++ )
        {
          elem.item( j ).label = label;
        }
      }
      //  Regular label
      elem.label = label;
    }
  }    
}

/*  Reset for another validation
------------------------------------------- */
fValidate.prototype._reset = function()
{
  this.errors    = new Array();
  this.showErrors  = new Array();
}

/*  Checks if element exists in form
------------------------------------------- */
fValidate.prototype.elementExists = function( elemName )
{
  return Boolean( typeof this.form.elements[elemName] != 'undefined' );
}

/*  Receives error message and determines action
------------------------------------------- */
fValidate.prototype.throwError = function( args, which )
{
  var elem  = this.elem;

  //  Arrayed element?
  if ( typeof elem.name == 'undefined' )
  {
    elem = elem[0];
  }

  //  Bok requested AND element blank OR conditional validation?
  if ( elem.bok && this.isBlank() )
  {  //  skip    
    elem.validated = true;
    return;
  }

  //  Part of a conditional validation?
  if ( elem.cv )
  {
    return;
  }
  
  //  Set failsafe to false  
  elem.validated = false;

  //  Create error message
  which  = this.setArg( which, 0 );
  args  = this.setArg( args, [] );
  emsgElem = ( typeof this.elem.getAttribute == "undefined" ) ?
      this.elem[0]:
      this.elem;
  if ( emsgElem.getAttribute( this.config.emsg ) )
  {
    var error = emsgElem.getAttribute( this.config.emsg );
  }
  var error = this.translateMessage( args, this.i18n.errors[this.type][which] );

  //  Group error mode?
  if ( this.groupError )
  {
    //  Push error onto stack
    this.errors.push( {'elem':elem, 'msg': error} );    
  }
  else
  {
    //  Process error message    
    this.showError( error, false, emsgElem );

    var focusElem = ( typeof elem.fields != 'undefined' )?
      elem.fields[0]:
      elem;
    
    //  Focus and select elements, if possible
    this.selectFocus( focusElem );
  }
}


/*  Shows error message to user
------------------------------------------- */
fValidate.prototype.showError = function( emsg, last, elem )
{
  //  Set variables
  var self    = this,
    elem    = this.setArg( elem, this.elem ),
    isHidden  = Boolean( elem.type == 'hidden' ),
    label    = ( isHidden ) ? null : elem.label || null,
    emsg    = ( elem.getAttribute( this.config.emsg ) ) ? elem.getAttribute( this.config.emsg ).replace( /\\n/g, "\n" ) : emsg,
    errorClass  = this.config.errorClass,
    singleCSS  = this.config.useSingleClassNames;

  if ( typeof this.showErrors == 'undefined' ) this.showErrors = new Array();  
  
  //  Determine which error modes to use
  switch( this.errorMode )
  {  //  This represents all possible combinations
    case 0  : alertError(); break;
    case 1  : inputError(); break;
    case 2  : labelError(); break;
    case 3  : appendError(); break;
    case 4  : boxError(); break;
    case 5  : inputError(); labelError(); break;
    case 6  : inputError(); appendError(); break;
    case 7  : inputError(); boxError(); break;
    case 8  : inputError(); alertError(); break;
    case 9  : labelError(); appendError(); break;
    case 10 : labelError(); boxError(); break;
    case 11 : labelError(); alertError(); break;
    case 12 : appendError(); boxError(); break;
    case 13 : appendError(); alertError(); break;
    case 14 : boxError(); alertError(); break;
    case 15 : inputError(); labelError(); appendError(); break;
    case 16 : inputError(); labelError(); boxError(); break;
    case 17 : inputError(); labelError(); alertError(); break;
    case 18 : inputError(); appendError(); boxError(); break;
    case 19 : inputError(); appendError(); alertError(); break;
    case 20 : inputError(); boxError(); alertError(); break;
    case 21 : labelError(); appendError(); boxError(); break;
    case 22 : labelError(); appendError(); alertError(); break;
    case 23 : appendError(); boxError(); alertError(); break;
    case 24 : inputError(); labelError(); appendError(); boxError(); break;
    case 25 : inputError(); labelError(); appendError(); alertError(); break;
    case 26 : inputError(); appendError(); boxError(); alertError(); break;
    case 27 : labelError(); appendError(); boxError(); alertError(); break;
    case 28 : inputError(); labelError(); appendError(); boxError(); alertError(); break;    
  }
  //  Regular alert error
  function alertError()
  {
    if ( self.groupError ) self.showErrors.push( emsg );
    else alert( emsg );
    if ( last ) alert( self.i18n.groupAlert + self.showErrors.join( "\n\n- " ) );      
  }
  //  Applies class to form element
  function inputError()
  {
    if ( ( typeof elem.length != 'undefined' && elem.length > 1 && elem.nodeName != 'SELECT' ) || isHidden )
    {
      var subelem, i = 0;
      while( subelem = ( isHidden ) ? elem.fields[i++] : elem.item( i++ ) )      
      {
        if ( subelem.className != '' && singleCSS )
        {
          subelem.revertClass = subelem.className;
          subelem.className = errorClass;
        } else {
          self.addCSSClass( subelem, errorClass );
        }        
      }
    }
    else
    {
      if ( singleCSS )
      {
        elem.revertClass = elem.className;
        elem.className = errorClass;
      } else {
        self.addCSSClass( elem, errorClass );
      }
    }
  }
  //  Applies class to element's label
  function labelError()
  {
    if ( label == null ) return;
    if ( self.config.useSingleClassNames )
    {
      label.className = errorClass;
    } else {
      self.addCSSClass( label, errorClass );
    }
    
  }
  //  Appends error message to element's label
  function appendError()
  {
    if ( label == null || typeof label.innerHTML == 'undefined' ) return;
    if ( typeof label.original == 'undefined' )
      label.original = label.innerHTML;
    label.innerHTML = label.original + " - " + emsg.toHTML();
  }
  //  Appends Error message to pre-defined element
  function boxError()
  {
    if ( typeof self.boxError == 'undefined' ) self.boxError = document.getElementById( self.config.boxError );
    if ( self.boxError == null )
    {      
      self.devError( [self.config.boxError], 'noBox' );
      return;
    }
    if ( typeof self.elem.name == 'undefined' || self.elem.name == "" )
    {
      self.devError( [self.elem[self.config.code]], 'missingName' );
      return;
    }
    var errorId = self.config.boxErrorPrefix + self.elem.name,
      errorElem;
    if ( errorElem = document.getElementById( errorId ) ) // short-circuit
    {
      errorElem.firstChild.nodeValue = emsg.toHTML();
    }
    else
    {
      errorElem = document.createHTMLElement( 'li', { id: errorId, 'innerHTML': emsg.toHTML(), title: self.i18n.boxToolTip } );
      self.boxError.appendChild( errorElem );
      errorElem.onclick = function()
      {
        var elem = self.form.elements[this.id.replace( self.config.boxErrorPrefix, "" )];
        if ( typeof elem.fields != 'undefined' ) elem = elem.fields[0];
        if ( typeof elem.select != 'undefined' ) elem.select();
        if ( typeof elem.focus != 'undefined' ) elem.focus();
      }
    }
    self.boxError.style.display = "block";
  }
}

/*  Handles element className manipulation
------------------------------------------- */
fValidate.prototype.removeCSSClass = function( elem, className )
{
  elem.className = elem.className.replace( className, "" ).trim();
}
fValidate.prototype.addCSSClass = function( elem, className )
{
  this.removeCSSClass( elem, className );
  elem.className = ( elem.className + " " + className ).trim();
}

/*  Processes errors in stack for group error mode
------------------------------------------- */
fValidate.prototype.showGroupError = function()
{
  for ( var error, firstElem, i = 0; ( error = this.errors[i] ); i++ )
  {
    if ( i == 0 ) firstElem = error.elem;
    this.elem = error.elem;
    this.showError( error.msg, Boolean( i == ( this.errors.length - 1 ) ) );
  }
  var focusElem = ( typeof firstElem.fields != 'undefined' )?
    firstElem.fields[0]:
    firstElem;
  this.selectFocus( focusElem );
}

/*  Reverts any visible error notification upon event
------------------------------------------- */
fValidate.prototype.revertError = function( elem )
{
  elem = this.setArg( elem, this.elem );
  var isHidden  = Boolean( elem.type == 'hidden' ),
    errorClass  = this.config.errorClass,
    i      = 0,
    errorElem,
    subelem;

  if ( ( typeof elem.length != 'undefined' && elem.length > 1 && elem.nodeName != 'SELECT' ) || isHidden )
  {
    if ( isHidden && typeof elem.fields != 'undefined' )
    {    
      while( subelem = ( isHidden ) ? elem.fields[i++] : elem.item( i++ ) )    
      {
        if ( typeof subelem.revertClass != 'undefined' )
        {
          subelem.className = subelem.revertClass;
        }
      }
    }
  } else {
    if ( this.config.useSingleClassNames )
    {
      if ( typeof subElement.revertClass != 'undefined' )
      {
        elem.className = elem.revertClass;
      }
    } else {
      this.removeCSSClass( elem, errorClass );
    }    
  }
  if ( typeof elem.label != 'undefined' )
  {
    if ( this.config.useSingleClassNames )
    {
      elem.label.className = '';
    } else {
      this.removeCSSClass( elem.label, errorClass );
    }
    elem.label.innerHTML = ( elem.label.original || elem.label.innerHTML );
  }
  if ( typeof this.boxError != 'undefined' )
  {
    if ( typeof this.boxError.normalize != 'undefined' ) this.boxError.normalize();
    if ( errorElem = document.getElementById( this.config.boxErrorPrefix + elem.name ) )
    {
      this.boxError.removeChild( errorElem );
    }
    if ( this.boxError.childNodes.length == 0 ) this.boxError.style.display = "none";
  }
}

/*  Focus and select elements, if possible
------------------------------------------- */
fValidate.prototype.selectFocus = function( elem )
{
  if ( typeof elem.select != 'undefined' ) elem.select();
  if ( typeof elem.focus != 'undefined' )  elem.focus();
}

/*  Developer assistance method - shows error if validator/element-type mismatch
------------------------------------------- */
fValidate.prototype.typeMismatch = function()
{
  var pats = {
    'text':    'text|password|textarea',
    'ta':    'textarea',
    'hidden':  'hidden',
    's1':    'select-one',
    'sm':    'select-multiple',
    'select':  'select-one|select-multiple',
    'rg':    'radio',
    'radio':  'radio',
    'cb':    'checkbox',
    'file':    'file'
    };
  var fail    = false,
    expected  = new Array(),
    result = key = type = regex = "";
  for ( var i = 0; i < arguments.length; i++ )
  {
    type  = pats[arguments[i]];
    regex  = new RegExp( type );
    result  += ( regex.test( this.elem.type ) ) ? "1" : "0";
    key    += "0";
    expected.push( type );    
  }
  if ( key ^ result == 0 )
  {
    this.devError( [this.elem.fName, this.elem.type, expected.join( "|" ).replace( /\|/g, this.i18n.or )], 'mismatch' );
    this.elem.validated = false;
    return true;
  }
  return false;
}

/*  Returns value(s) of reference element passed
------------------------------------------- */
fValidate.prototype.getValue = function( elem )
{
  switch ( elem.type )
  {
    case 'text' :
    case 'password' :
    case 'textarea' :
    case 'hidden' :
    case 'file' :
      return elem.value;
    case 'radio':
    case 'select-single':
      if ( typeof elem.length == 'undefined' )
      {
        return elem.value;
      } else {
        for ( var i = 0; i < elem.length; i++ )
        {
          choice = ( elem.type == 'radio' ) ? "checked" : "selected";
          if ( elem[i][choice] )
          {
            return elem[i].value;
          }
        }
      }
    case 'select-multiple' :
    case 'checkbox' :
      if ( typeof elem.length == 'undefined' )
      {
        return elem.value
      } else {
        var returnValues = new Array();
        for ( var i = 0; i < elem.length; i++ )
        {
          choice = ( elem.type == 'checkbox' ) ? "checked" : "selected";
          if ( elem[i][choice] )
          {
            returnValues.push( elem[i].value );
          }
        }
        return returnValues;
      }
    default: return null;
  }
}

/*  Generic argument setting method
------------------------------------------- */
fValidate.prototype.setArg = function( arg, def )
{
  return ( typeof arg == 'undefined' || arg == '' || arg == null ) ? def : arg;
}

/*  Blank checker.  Optional string argument for evaluating element other than current
------------------------------------------- */
fValidate.prototype.isBlank = function( el )
{
  var elem = this.form.elements[el] || this.elem;
  return Boolean( /^\s*$/.test( elem.value ) );
}

/*  Translates messages using language file
------------------------------------------- */
fValidate.prototype.translateMessage = function( args, format )
{
  var msg    = ""
  for ( var i = 0; i < format.length; i++ )
  {      
      msg += ( typeof format[i] == 'number' ) ? args[format[i]] : format[i];
  }
  return msg;
}

/*  Throws developer errors
------------------------------------------- */
fValidate.prototype.devError = function( args, which )
{
  if ( typeof args == 'string' )
  {
    which = args;
    args = [];
  }
  which = this.setArg( which, this.type );
  var format = this.i18n.devErrors[which];
  var a = [
    this.i18n.devErrors.lines[0],
    '----------------------------------------------------------------------------------------------',
    this.translateMessage( args, format ),
    '----------------------------------------------------------------------------------------------',
    this.i18n.devErrors.lines[1]
    ];
  alert( a.join( "\n" ) );
}

/*  Throws specific developer error
------------------------------------------- */
fValidate.prototype.paramError = function( param, elemName )
{
  elemName = this.setArg( elemName, this.elem.name );
  this.devError( [param, this.type, elemName], 'paramError' );
}
/* Non-fValidate methods *****************************************/

/*  For easy creation of DOM nodes
------------------------------------------- */
document.createHTMLElement = function( elemName, attribs )
{
  if ( typeof document.createElement == 'undefined' ) return;
  var elem = document.createElement( elemName );
  if ( typeof attribs != 'undefined' )
  {
    for ( var i in attribs )
    {
      switch ( true )
      {
        case ( i == 'text' )  : elem.appendChild( document.createTextNode( attribs[i] ) ); break;
        case ( i == 'class' ) : elem.className = attribs[i]; break;
        default : elem.setAttribute( i, '' ); elem[i] = attribs[i];
      }
    }
  }
  return elem;    
}

/*  Trims b items from the beginning of the array, e items from the end
------------------------------------------- */
Array.prototype.reduce = function( b, e )
{
  var a = new Array();
  var count = 0;
  for ( var i = b; i < this.length - e; i++ )
  {
    a[count++] = this[i];
  }
  return a;
}

/*  Returns array as argument-compatible string
------------------------------------------- */
Array.prototype.toArgString = function()
{
  var a = new Array();
  for ( var i = 0; i < this.length; i++ )
  {
    a.push( "'" + this[i] + "'" );
  }  
  return a.toString();
}

/*  Prototype push if missing
------------------------------------------- */
if ( typeof Array.push == 'undefined' )
Array.prototype.push = function()
{
  var arg, i = 0;
  while( arg = arguments[i++] )
  {
    this[this.length] = arg;
  }
  return this.length;
}

/*  Returns last item of the array
------------------------------------------- */
Array.prototype.last = function()
{
  return this[this.length-1];
}

/*  Removes the follow charaters _[] from an elements name for human-reading
------------------------------------------- */
String.prototype.format = function()
{
  return this.replace( /\_/g, " ").replace( /\[|\]/g, "" );
}

/*  Replaces newline characters with XHTML BR tags
------------------------------------------- */
String.prototype.toHTML = function()
{
  return this.replace( /\n/g, "<br />" ).replace( /\t/g, "&nbsp;&nbsp;&nbsp;&nbsp;" );
}

/*  Trims leading and trailing whitespace from string
------------------------------------------- */
String.prototype.trim = function()
{
  return this.replace( /^\s+|\s+$/, "" );
}

/*  Escapes necessary charactes for string-generated regular expressions
------------------------------------------- */
String.prototype.toPattern = function()
{
  return this.replace( /([\.\*\+\{\}\(\)\<\>\^\$\\])/g, "\\$1" );
}
//  EOF