// -----------------------------------------------------------------------------
// Generic Form Validation
//
// Copyright (C) 2000 Jacob Hage - [jacobhage@hotmail.com]
// Distributed under the terms of the GNU Library General Public License
// -----------------------------------------------------------------------------

// -----------------------------------------------------------------------------
// Initializing script  - setting global variables
// -----------------------------------------------------------------------------
var checkObjects        = new Array();  // Array containing the objects to validate.
var errors              = "";           // Variable holding the error message.
var returnVal           = false;        // General return value. The validated form will only be submitted if true.
var language            = new Array();  // Language independent error messages!
//var selectecLanguage  = "danish"; // Choose between "english", "danish", "dutch", "french", "spanish", "russian", "portuguese"
language.english        = new Array();
language.italian        = new Array();
language.german        = new Array();
language.danish         = new Array();
language.dutch          = new Array();
language.french         = new Array();
language.spanish        = new Array();
language.russian        = new Array();
language.portuguese     = new Array();
language.swedish        = new Array();
language.polish         = new Array();
language.brazport       = new Array(); // Brazilian Portuguese

// Error messages in english:
    language.english.header     = "The following error(s) occured:"
    language.english.start      = "-";
    language.english.field      = " ";
    language.english.require    = " is required";
    language.english.min        = " and must consist of at least ";
    language.english.max        = " and must not contain more than ";
    language.english.minmax     = " and no more than ";
    language.english.chars      = " characters";
    language.english.num        = " and must contain a number";
    language.english.email      = " must contain a valid e-mail address";

// Error messages in italian:
    language.italian.header     = "Si sono verificati i seguenti errori:"
    language.italian.start      = "-";
    language.italian.field      = " ";
    language.italian.require    = " è obbligatorio";
    language.italian.min        = " deve contenere almeno ";
    language.italian.max        = " non deve contenere più di ";
    language.italian.minmax     = " e meno di ";
    language.italian.chars      = " caratteri";
    language.italian.num        = " e deve contenere un numero";
    language.italian.email      = " deve contenere un indirizzo e-mail valido";

// Error messages in german:
    language.german.header     = "Sie haben ein Feld vergessen auszufüllen:"
    language.german.start      = "- ";
    language.german.field      = " ";
    language.german.require    = " is required";
    language.german.min        = " and must consist of at least ";
    language.german.max        = " and must not contain more than ";
    language.german.minmax     = " and no more than ";
    language.german.chars      = " characters";
    language.german.num        = " and must contain a number";
    language.german.email      = " must contain a valid e-mail address";
    
// Error messages in Danish:
    language.danish.header      = "Der opstod f\370lgende fejl:";
    language.danish.start       = "->";
    language.danish.field       = " Feltet ";
    language.danish.require     = " skal udfyldes";
    language.danish.min         = " og skal best\345 af mindst ";
    language.danish.max         = " og m\345 ikke best\345 af flere end ";
    language.danish.minmax      = " og ikke flere " // English: " and no more than ";
    language.danish.chars       = " tegn";
    language.danish.num         = " og m\345 kun best\345 af tal";
    language.danish.email       = " skal indeholde en korrekt e-mail addresse";
    
// Error messages in Dutch: 
    language.dutch.header       = "De volgende fout(en) zitten in het formulier:"
    language.dutch.start        = "->";
    language.dutch.field        = " Veld ";
    language.dutch.require      = " is verplicht";
    language.dutch.min          = " en moet bestaan uit minstens";
    language.dutch.max          = " en moet bestaan uit meer dan";
    language.dutch.minmax       = " en niet meer dan";
    language.dutch.chars        = " karakters";
    language.dutch.num          = " en moet een nummer zijn";
    language.dutch.email        = " moet een geldig e-mail adres zijn.";

// Error messages in French: 
    language.french.header      = "L'erreur suivante s'est produite: "
    language.french.start       = "-";
    language.french.field       = " ";
    language.french.require     = " est obligatoire";
    language.french.min         = " et doit contenir au moins ";
    language.french.max         = " et ne doit pas contenir plus de ";
    language.french.minmax      = " et pas plus de ";
    language.french.chars       = " caract\350res";
    language.french.num         = " et doit contenir un nombre ";
    language.french.email       = " doit contenir une adresse e-mail valide";

// Error messages in Spanish: 
    language.spanish.header     = "Se ha producido un error:"
    language.spanish.start      = "-";
    language.spanish.field      = " ";
    language.spanish.require    = " es obligatorio";
    language.spanish.min        = " y debe contener al menos ";
    language.spanish.max        = " y no debe contener m\341s de ";
    language.spanish.minmax     = " y no m\341s de ";
    language.spanish.chars      = " caracteres";
    language.spanish.num        = " y debe contener un n\372mero";
    language.spanish.email      = " debe contener una direcci\363n de e-mail v\341lida";
    
// Error messages in russian: 
    language.russian.header     = " Âîçíèêëà Îøèáêà(è):"
    language.russian.start      = "->";
    language.russian.field      = " Ïîëå ";
    language.russian.require    = " îáÿçàòåëüíî";
    language.russian.min        = " è äîëæíî ñîäåðæàòü íå ìåíåå ";
    language.russian.max        = " è íå äîëæíî ñîäåðæàòü áîëåå ";
    language.russian.minmax     = " è íå áîëåå ";
    language.russian.chars      = " çíàêîâ";
    language.russian.num        = " è äîëæíî ñîäåðæàòü ÷èñëîâîå çíà÷åíèå";
    language.russian.email      = " äîëæíî ñîäåðæàòü äåéñòâèòåëüíûé e-mail àäðåñ";
    
// Error messages in portuguese: 
    language.portuguese.header  = "O(s) seguinte(s) erro(s) ocorreu(am:"
    language.portuguese.start   = "->";
    language.portuguese.field   = " Ca ";
    language.portuguese.require = " e' necessario";
    language.portuguese.min     = " e deve conter pelo menos ";
    language.portuguese.max     = " e nao deve conter mais de ";
    language.portuguese.minmax  = " e nao mais que ";
    language.portuguese.chars   = " caracteres";
    language.portuguese.num     = " e deve conter numero";
    language.portuguese.email   = " deve conter um e-mail valido";

// Error messages in Swedish: 
    language.swedish.header     = "Fšljande fel uppstod:";
    language.swedish.start      = "->";
    language.swedish.field      = " FŠltet ";
    language.swedish.require    = " mŒste fyllas i";
    language.swedish.min        = " och skall bestΠav minst ";
    language.swedish.max        = " och skall inte bestŒ av fler Šn ";
    language.swedish.minmax     = " och inte fler Šn ";
    language.swedish.chars      = " tecken";
    language.swedish.num        = " och mŒste innehŒlla ett nummer";
    language.swedish.email      = " mŒste innehŒlla en korrekt epost adress";

// Error messages in polish: 
    language.polish.header      = "Wyst¹pi³ nastêpuj¹cy b³¹d(b³êdy):"
    language.polish.start       = "* ";
    language.polish.field       = " Pole <";
    language.polish.require     = "> jest wymagane";
    language.polish.min         = " i musi zawieraæ conajmniej ";
    language.polish.max         = " i nie mo¿e zawieraæ wiêcej ni¿ ";
    language.polish.minmax      = " i nie wiêcej ni¿ ";
    language.polish.chars       = " znaki";
    language.polish.num         = " i musi zawieraæ liczbê";
    language.polish.email       = " musi zawieraæ prawid³owy adres e-mail";

// Error messages in brazilian portuguese: 
    language.brazport.header    = "O(s) seguinte(s) erro(s) ocorreu(ram):"
    language.brazport.start     = "->";
    language.brazport.field     = " O campo ";
    language.brazport.require   = " é obrigatório";
    language.brazport.min       = " e deve ser composto de no mínimo por ";
    language.brazport.max       = " e não deve conter mais de ";
    language.brazport.minmax    = " e não mais de ";
    language.brazport.chars     = " caracteres";
    language.brazport.num       = " e deve conter um número";
    language.brazport.email     = " deve conter um endereço de e-mail válido";

// -----------------------------------------------------------------------------
// define - Call this function in the beginning of the page. I.e. onLoad.
//
// n = name of the input field (Required)
// @@@@ 25/07/2005 Marco : modifica per validazione radiobutton e checkbox
// type= string, num, email, lista, radio, check (Required)
// \\ @@@@
// min = the value must have at least [min] characters (Optional)
// max = the value must have maximum [max] characters (Optional)
// d = (Optional)
// -----------------------------------------------------------------------------
function define(n,type,HTMLname,min,max,d){
    var p;
    var i;
    var x;
    if(!d) d=document;
    if((p=n.indexOf("?"))>0&&parent.frames.length){
        d=parent.frames[n.substring(p+1)].document;
        n=n.substring(0,p);
    }
    if(!(x=d[n])&&d.all) x=d.all[n];
    
    for (i=0;!x&&i<d.forms.length;i++){
        x=d.forms[i][n];
    }
    for(i=0;!x&&d.layers&&i<d.layers.length;i++){
        x=define(n,type,HTMLname,min,max,d.layers[i].document);
        return x;       
    }
    
    // Create Object. The name will be "V_something" where something is the "n" parameter above.
    eval("V_"+n+" = new formResult(x,type,HTMLname,min,max);");
    checkObjects[eval(checkObjects.length)] = eval("V_"+n);
}

// -----------------------------------------------------------------------------
// formResult - Used internally to create the objects
// -----------------------------------------------------------------------------
function formResult(form,type,HTMLname,min,max){
    this.form = form;
    this.type = type;
    this.HTMLname = HTMLname;
    this.min  = min;
    this.max  = max;
}

// -----------------------------------------------------------------------------
// validate - Call this function onSubmit and return the "returnVal". (onSubmit="validate();return returnVal;")
// -----------------------------------------------------------------------------
function validate(){
    if(checkObjects.length>0){
        errorObject = "";
    
        for(i=0;i<checkObjects.length;i++){
            validateObject          = new Object();
            validateObject.form     = checkObjects[i].form;
            validateObject.HTMLname = checkObjects[i].HTMLname;
            // @@@@ 25/07/2005 Marco : modifica per validazione radiobutton e checkbox
            //validateObject.val      = checkObjects[i].form.value; 
            validateObject.nam      = checkObjects[i].form.name;
            //validateObject.len      = checkObjects[i].form.value.length;
            // \\ @@@@
            validateObject.min      = checkObjects[i].min;
            validateObject.max      = checkObjects[i].max;
            validateObject.type     = checkObjects[i].type;
            
            // @@@@ 25/07/2005 Marco : modifica per validazione radiobutton e checkbox
            if ( validateObject.type == 'num' || validateObject.type == 'string' ||
                 validateObject.type == 'email' || validateObject.type == 'lista' ) {
                validateObject.val = checkObjects[i].form.value;
                validateObject.len = checkObjects[i].form.value.length;
		/*
            } else if ( validateObject.type == 'lista' ) {
	      if ( checkObjects[i].form.selectedIndex == -1 ) {
	      alert ( checkObjects[i].form.name );
                 validateObject.val = "";
                 validateObject.len = 0;
	      } else {
                 validateObject.val = checkObjects[i].form.options[checkObjects[i].form.selectedIndex].value;
                 validateObject.len = validateObject.val.length;
	      }*/
            } else {
                validateObject.val = "";
                validateObject.len = 0;
	    }
            // \\ @@@@
            
            
            //Debug alert line
            //alert("validateObject: "+validateObject+"\nvalidateObject.val: "+validateObject.val+"\nvalidateObject.len: "+validateObject.len+"\nvalidateObject.min,validateObject.max: "+validateObject.min+","+validateObject.max+"\nvalidateObject.type: "+validateObject.type);
            // Checking input. If "min" and/or "max" is defined the input has to be within the specific range
            if(validateObject.type == "num" || validateObject.type == "string"){
                if((validateObject.type == "num" && validateObject.len <= 0) || (validateObject.type == "num" && isNaN(validateObject.val))){errors+=language[selectecLanguage].start+language[selectecLanguage].field+validateObject.HTMLname+language[selectecLanguage].require+language[selectecLanguage].num+"\n";
                } else if (validateObject.min && validateObject.max && (validateObject.len < validateObject.min || validateObject.len > validateObject.max)){errors+=language[selectecLanguage].start+language[selectecLanguage].field+validateObject.HTMLname+language[selectecLanguage].require+language[selectecLanguage].min+validateObject.min+language[selectecLanguage].minmax+validateObject.max+language[selectecLanguage].chars+"\n";
                } else if (validateObject.min && !validateObject.max && (validateObject.len < validateObject.min)){errors+=language[selectecLanguage].start+language[selectecLanguage].field+validateObject.HTMLname+language[selectecLanguage].require+language[selectecLanguage].min+validateObject.min+language[selectecLanguage].chars+"\n";
                } else if (validateObject.max && !validateObject.min &&(validateObject.len > validateObject.max)){errors+=language[selectecLanguage].start+language[selectecLanguage].field+validateObject.HTMLname+language[selectecLanguage].require+language[selectecLanguage].max+validateObject.max+language[selectecLanguage].chars+"\n";
                } else if (!validateObject.min && !validateObject.max && validateObject.len <= 0){errors+=language[selectecLanguage].start+language[selectecLanguage].field+validateObject.HTMLname+language[selectecLanguage].require+"\n";
                }
            } else if(validateObject.type == "email"){
                // Checking existense of "@" and ".". The length of the input must be at least 5 characters. The "." must neither be preceding the "@" nor follow it.
                if((validateObject.val.indexOf("@") == -1) || (validateObject.val.charAt(0) == ".") || (validateObject.val.charAt(0) == "@") ||(validateObject.len < 6) || (validateObject.val.indexOf(".") == -1) || (validateObject.val.charAt(validateObject.val.indexOf("@")+1) == ".") || (validateObject.val.charAt(validateObject.val.indexOf("@")-1) == ".")){errors+=language[selectecLanguage].start+language[selectecLanguage].field+validateObject.HTMLname+language[selectecLanguage].email+"\n";}
            } else if(validateObject.type == "lista") {
                    if((validateObject.form.selectedIndex==0)){errors+=language[selectecLanguage].start+language[selectecLanguage].field+validateObject.HTMLname+language[selectecLanguage].require+"\n";}
            }
            // @@@@ 25/07/2005 Marco : modifica per validazione radiobutton e checkbox
              else if ( validateObject.type == "radio" ) {
                // Aggiunge validazione per i radiobutton
                var radio_choice = false;
                for (counter = 0; counter < validateObject.form.length && ! radio_choice; counter++) {
                    if ( validateObject.form[counter].checked ) { radio_choice = true; }
                }
                if ( ! radio_choice ) {
                    errors += language[selectecLanguage].start+language[selectecLanguage].field+validateObject.HTMLname+language[selectecLanguage].require+"\n";
                }
            } else if ( validateObject.type == "check" ) {
                // Aggiunge validazione per i checkbox (ok se selezionato)
                if ( ! validateObject.form.checked ) {
                    errors += language[selectecLanguage].start+language[selectecLanguage].field+validateObject.HTMLname+language[selectecLanguage].require+"\n";
                }
            }
            // \\ @@@@
        }
    }
    
    // Used to set the state of the returnVal. If errors -> show error messages in chosen language
    if(errors){
        alert(language[selectecLanguage].header.concat("\n\n"+errors));
        errors = "";
        returnVal = false;
    } else {
        returnVal = true;
    }
}