// Generic Form Validation
// Jacob Hage (jacob@hage.dk)
var checkObjects	= new Array();
var errors		= "";
var returnVal		= false;
var language		= new Array();
language["header"]	= "Los siguientes errores ocurrieron :"
language["start"]	= "->";
language["field"]	= "El Atributo ";
language["require"]	= " es requerido";
language["min"]		= " y debe consistir al menos de ";
language["max"]		= " y no debe contener más de ";
language["minmax"]	= " y no más de ";
language["chars"]	= " caracteres";
language["num"]		= " y debe contener un número";
language["date"]    = " y debe contener una fecha en el formato dd/mm/aaaa";
language["email"]	= " debe contener una dirección de e-mail válida";
// -----------------------------------------------------------------------------
// define - Call this function in the beginning of the page. I.e. onLoad.
// n = name of the input field (Required)
// type= string, num, email (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;       
	}
	eval("V_"+n+" = new formResult(x, type, HTMLname, min, max);");
	checkObjects[eval(checkObjects.length)] = eval("V_"+n);
}

function formResult(form, type, HTMLname, min, max) 
{
	this.form = form;
	this.type = type;
	this.HTMLname = HTMLname;
	this.min  = min;
	this.max  = max;
}

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;
			validateObject.val = checkObjects[i].form.value;
			validateObject.len = checkObjects[i].form.value.length;
			validateObject.min = checkObjects[i].min;
			validateObject.max = checkObjects[i].max;
			validateObject.type = checkObjects[i].type;
			if ((validateObject.type == "num" || validateObject.type == "string"|| validateObject.type=="date") &&  validateObject.min != null )
			{
				if ((validateObject.type == "num" && validateObject.len <= 0) || (validateObject.type == "num" && isNaN(validateObject.val)))
				{ 
					errors += language['start'] + language['field'] + validateObject.HTMLname + language['require'] + language['num'] + "\n";
				}
				else if (validateObject.type=="date")
				{
					if(validateObject.len != 10)
					{
						errors += language['start'] + language['field'] + validateObject.HTMLname + language['require'] + language['date'] + "\n";
					}
					else
					{
						if(chkdate(checkObjects[i].form.name)==false)
						{
							errors += language['start'] + language['field'] + validateObject.HTMLname + language['require'] + language['date'] + "\n";
						} 
					}
				}
				else if (validateObject.min && validateObject.max && (validateObject.len < validateObject.min || validateObject.len > validateObject.max))
				{ 
					errors += language['start'] + language['field'] + validateObject.HTMLname + language['require'] + language['min'] + validateObject.min + language['minmax'] + validateObject.max+language['chars'] + "\n";
				}
				else if (validateObject.min && !validateObject.max && (validateObject.len < validateObject.min)) 
				{ 
					errors += language['start'] + language['field'] + validateObject.HTMLname + language['require'] + language['min'] + validateObject.min + language['chars'] + "\n";
				} 
				else if (validateObject.max && !validateObject.min &&(validateObject.len > validateObject.max)) 
				{ 
					errors += language['start'] + language['field'] + validateObject.HTMLname + language['require'] + language['max'] + validateObject.max + language['chars'] + "\n";
				} 
				else if (!validateObject.min && !validateObject.max && validateObject.len <= 0) 
				{ 
					errors += language['start'] + language['field'] + validateObject.HTMLname + language['require'] + "\n";
				}
			} 
			else if(validateObject.type == "email") {
				// Checking existense of "@" and ".". 
				// Length of must >= 5 and the "." must 
				// not directly precede or follow the "@"
				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['start'] + language['field'] + validateObject.HTMLname + language['email'] + "\n";
				}
			}
		}//for
	}
	if (errors) 
	{
		alert(language["header"].concat("\n" + errors));
		errors = "";
		returnVal = false;
	} 
	else 
	{
		returnVal = true;
	}
}

function checkdate(objName) {
	var datefield = objName;
	if (chkdate(objName) == false) {
		datefield.select();
		//alert("La fecha o el formato de la fecha es incorrecto. Reingrese la Fecha. Error[]");
		datefield.focus();
		return false;
	}
	else {
		return true;
   }
}

function chkdate(objName) {
	var strDatestyle = "US"; //United States date style
	//var strDatestyle = "EU";  //European date style
	var strDate;
	var strDateArray;
	var strDay;
	var strMonth;
	var strYear;
	var intday;
	var intMonth;
	var intYear;
	var booFound = false;
//	var datefield = objName;
	var datefield = eval("document.forms[0]."+objName);
	var strSeparatorArray = new Array("-"," ","/",".");
	var intElementNr;
	var err = 0;
	var strMonthArray = new Array(12);
	strMonthArray[0] = "01";
	strMonthArray[1] = "02";
	strMonthArray[2] = "03";
	strMonthArray[3] = "04";
	strMonthArray[4] = "05";
	strMonthArray[5] = "06";
	strMonthArray[6] = "07";
	strMonthArray[7] = "08";
	strMonthArray[8] = "09";
	strMonthArray[9] = "10";
	strMonthArray[10] = "11";
	strMonthArray[11] = "12";
	strDate = datefield.value;
	if (strDate.length < 1)
	{
		return true;
	}
	for (intElementNr = 0; intElementNr < strSeparatorArray.length; intElementNr++) {
		if (strDate.indexOf(strSeparatorArray[intElementNr]) != -1) {
			strDateArray = strDate.split(strSeparatorArray[intElementNr]);
			if (strDateArray.length != 3) {
			err = 1;
			return false;
			}
			else {
				strYear = strDateArray[2];
				strMonth = strDateArray[1];
				strDay = strDateArray[0]; 
			}
			booFound = true;
		   }
		}
	if (booFound == false) {
		if (strDate.length>5) {
			strDay = strDate.substr(0, 2);
			strMonth = strDate.substr(2, 2);
			strYear = strDate.substr(4);
   		}
	}
	if (strYear.length == 2) {
		strYear = '20' + strYear;
	}

	// US style
	if (strDatestyle == "US") {
		//strTemp = strDay;
		//strDay = strMonth;
		//strMonth = strTemp;
	}
	intday = parseInt(strDay, 10);
	if (isNaN(intday)) {
		err = 2;
		return false;
	}
	intMonth = parseInt(strMonth, 10);
	if (isNaN(intMonth)) {
		for (i = 0;i<12;i++) {
			if (strMonth.toUpperCase() == strMonthArray[i].toUpperCase()) {
				intMonth = i+1;
				strMonth = strMonthArray[i];
				i = 12;
   			}
		}
		if (isNaN(intMonth)) {
			err = 3;
			return false;
   		}
	}
	intYear = parseInt(strYear, 10);
	if (isNaN(intYear)) {
		err = 4;
		//return false;
	}
	if (intMonth>12 || intMonth<1) {
		err = 5;
		return false;
	}
	if ((intMonth == 1 || intMonth == 3 || intMonth == 5 || intMonth == 7 || intMonth == 8 || intMonth == 10 || intMonth == 12) && (intday > 31 || intday < 1)) {
		err = 6;
		return false;
	}
	if ((intMonth == 4 || intMonth == 6 || intMonth == 9 || intMonth == 11) && (intday > 30 || intday < 1)) {
		err = 7;
		return false;
	}
	if (intMonth == 2) {
		if (intday < 1) {
			err = 8;
			return false;
	}
	if (LeapYear(intYear) == true) {
		if (intday > 29) {
			err = 9;
			return false;
		}
	}
	else {
		if (intday > 28) {
			err = 10;
			return false;
		}
	}
	document.numErrorFecha=err;
}
	if (strDatestyle == "US") {
		//datefield.value = strMonthArray[intMonth-1] + "/" + intday+"/" + strYear;
		if(intday < 10)
			intday="0"+intday;
		datefield.value = intday + "/" + strMonthArray[intMonth-1] +"/" + strYear;
	}
	else {
		//datefield.value = intday + "/" + strMonthArray[intMonth-1] + "/" + strYear;
		datefield.value = strYear + "-" + strMonthArray[intMonth-1];
		if(intday < 10)
			intday="0"+intday;
		datefield.value += "-" + intday; 
	}
	//return true;
}

function LeapYear(intYear) {
	if (intYear % 100 == 0) {
		if (intYear % 400 == 0) { return true; }
		}
		else {
			if ((intYear % 4) == 0) { return true; }
		}
		return false;
}

function ValidaEntero()
{
Tecla = window.event.keyCode;
if (Tecla > 47 && Tecla < 58)
	return true;
else
	return false;
}

function ValidaFlotante()
{
Tecla = window.event.keyCode;
if(Tecla == 46 || (Tecla > 47 && Tecla < 58))
	return true;
else
	return false;
}

function ValidaFecha()
{
Tecla = window.event.keyCode;
if(Tecla == 45 || (Tecla > 47 && Tecla < 58) )
	return true;
else
	return false;
}

function ValidaAlfabeto()
{
Tecla = window.event.keyCode;
if( Tecla == 32 || Tecla == 95 || (Tecla > 47  && Tecla < 58) || (Tecla > 64  && Tecla < 91) || (Tecla > 96  && Tecla < 123) || Tecla == 225 || Tecla == 233 || Tecla == 237 || Tecla == 243 || Tecla == 250 || Tecla == 241 || Tecla == 209 || Tecla == 201 ||Tecla == 211 || Tecla == 193 || Tecla == 205 || Tecla == 218 )
	return true;
else
	return false;
}

function ValidaFechaBusqueda()
{ 
Tecla = window.event.keyCode;
if(Tecla == 45 || (Tecla > 47 && Tecla < 58) || Tecla == 37 || Tecla == 95)
	return true;
else
	return false;
}

function ValidaFlotanteBusqueda()
{
Tecla = window.event.keyCode;
if(Tecla == 46 || (Tecla > 47 && Tecla < 58) || Tecla == 37 || Tecla == 95)
	return true;
else
	return false;
}

function ValidaEnteroBusqueda()
{
Tecla = window.event.keyCode;
if ((Tecla > 47 && Tecla < 58) || Tecla == 37 || Tecla == 95)
	return true;
else
	return false;
}

function ValidaNoComillaSimple()
{//Modificar en validación de forma
Tecla = window.event.keyCode;
if(Tecla == 39 || Tecla == 34)
	return false;
else
	return true; 
}