function getKeyCode(e) {
	var keynum;
	if(window.event) {// IE
		keynum = e.keyCode;
	} else if (e.which) {// Netscape/Firefox/Opera
		keynum = e.which;
	}
	return keynum;
}

function acceptNum(e){
	var keynum = getKeyCode(e);
	keychar = String.fromCharCode(keynum);
	numcheck = /\d/;
	return numcheck.test(keychar);
}

function isEnter(e){
	var keynum = getKeyCode(e);
	return (keynum == 13); 
}

function isBack(e){
	var keynum = getKeyCode(e);
	return (keynum == 8); 
}

function sub(e, loc, frm) {
	if (isBack(e)) {
		return true;
	}
	if (isEnter(e)) {
		for (i=0; i<frm.elements.length; i++) {
			loc =loc +  '&' + frm.elements[i].name + '=' + frm.elements[i].value;		}	
			window.location.href = loc;
			return;
	}
	return acceptNum(e);
}

function buscar(e, loc) {
	if (isEnter(e)) {
		window.location.href = loc;
	}	
	return true;
}


function changeImage(imgOrigen, imgDestino) {
	imgDestino.src = imgOrigen.src;
	if ($('img2') != undefined) {
		$('img2').className ='';
	}	
	if ($('img3') != undefined) {
		$('img3').className ='';
	}	
	if ($('img4') != undefined) {
		$('img4').className ='';
	}
	if ($('img5') != undefined) {
		$('img5').className ='';
	}
	if ($('img6') != undefined) {
		$('img6').className ='';
	}
	imgOrigen.className = 'bordeIMG';
}

function mostrarIMG(imgOrigen) {
	$('imgBig').src = imgOrigen.src;
	$('contIMG').style.display = 'block';
}


function setFileName(theForm, input, valor)
{
	if ( (input == null) || (input == "") ||
		 (valor == null) || (valor == "") )
		return;

	var aspl = valor.split("\\");
	var str;

	document.form.encoding = "multipart/form-data";
	document.form.action = "{POST}abm_det.asp?tabla={TABLA}&id={ROW_ID}&volver={VOLVER}&preset={PRESET}";
	str = "";

	if (aspl.length > 0) {
		str = aspl[aspl.length - 1];
	}
	var p = 'theForm.' + input.substr(2) + '.value="' + str + '"';
	eval(p);
}

function isblank (o)
{
	if (o == null) return true;

	var s;
	s = o.value;

	if ((s == null) || (s == ""))
		return true;

	for (var i=0;i<s.length;i++) {
		var c = s.charAt(i);
		if (o.type == "select")
		{
			if (o.options[o.selectedIndex].value == "") return false;
		} else {
			if ((c != ' ') && (c != '\n') && (c != '\t')) return false;
		}
	}
	return true;
}

/////////////////////////////////////////////////////////////////////
function checkRequiredOK(e)
{
	if (((e.type == "text") ||
		(e.type == "textarea") ||
		(e.type == "password") ||
		(e.type == "select-one")) &&
		!e.optional)
	{
		if (isblank(e) || (e.type == "select-one" && e.value == 0))
		{
			return false;
		}
	}

	return true;
}

function getName(e)
{
	if (e.nombre != null)
		return e.nombre;
	else
		return e.name;
}
/////////////////////////////////////////////////////////////////////
function verify(f)
{
	var msg;
	var empty_fields = "";
	var errors = "";
	var elementoFoco="";

	for (var i=0;i<f.length;i++)
	{
		var e = f.elements[i];
		if (!checkRequiredOK(e))
		{
			if (empty_fields == "")
			{
				elementoFoco = e;
			//	empty_fields = "\n";
			}

			empty_fields += "\n- " + getName(e);
			continue;
		}


		if (e.date && !isblank(e))
		{
			var fec = e.value;
			fec = fec.replace("/", "-");
			fec = fec.replace("/", "-");
			var d = fec.split("-");
			var error;
			error = '';

			if ((e.length < 8) || (d.length != 3) ||
				isNaN(parseFloat(d[0])) ||
				isNaN(parseFloat(d[1])) ||
				isNaN(parseFloat(d[2])) ||
				(d[0] < 1) || (d[0] > 31) ||
				(d[1] < 1) || (d[1] > 12) ||
				(d[2] < 1900)) {

/*				if (errors == "")
				{

					errors = "\n";
				}*/
				errors += "\n- " + "Fecha incorrecta: " + getName(e) + ". El formato es dd-mm-aaaa o dd/mm/aaaa.";
				elementoFoco = e;
			}
		}

		/*agregado mail*/
		if (e.email && !isblank(e)) {
			if (!isMail(e.value)) {
				errors += "\n- " + "Dirección de e-mail incorrecta: " + getName(e) + ". Recuerde que debe contener los caracteres \"@\" y \".\". Ej: micorreo@midominio.com";
				if (elementoFoco == "") {
					elementoFoco = e;
				}
			}
		}
		/*agregado mail*/

		if (e.numeric || (e.min != null) || (e.max != null))
		{
			if (isblank(e))
				continue;
			var v = parseFloat(e.value);
			if (isNaN(v) ||
				((e.min != null) && (v < e.min)) ||
				((e.max != null) && (v > e.max))) {

/*				if (errors == "")
				{
					errors = "\n";
				}*/

				errors += "\n- El campo " + getName(e) + " debe ser numérico.";
				elementoFoco = e;
				if (e.min != null)
					errors += " mayor que " + e.min;
				if (e.max != null && e.min != null)
					errors += " y menor que " + e.max;
				else if (e.max != null)
					errors += " menor que " + e.max;
				errors += ".\n";
			}
		}
	}

	if (!empty_fields && !errors) return true;

	msg = "Se detectaron los siguientes errores. Por favor, verificalos e intentá nuevamente.\n\n";

	if (empty_fields) {
		msg += "Los siguientes campos obligatorios están vacíos: " + empty_fields + "\n";

		//if (errors) msg += "\n";
	}

	msg += errors;
	alert(msg);
	elementoFoco.focus();
	return false;
}

function esFecha(e) {
	if (!isblank(e)) {
		e.value = e.value.replace("/", "-");
		e.value = e.value.replace("/", "-");
		var d = e.value.split("-");
		var error;
		error = '';

		if ((e.length < 8) || (d.length != 3) ||
			isNaN(parseFloat(d[0])) ||
			isNaN(parseFloat(d[1])) ||
			isNaN(parseFloat(d[2])) ||
			(d[0] < 1) || (d[0] > 31) ||
			(d[1] < 1) || (d[1] > 12) ||
			(d[2] < 1900)) {

			return false;
		}
	} else {
		return false;
	}
	return true;
}

function isMail(value) {
	return (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(value));
}

function validarTextAreaLength(txarea, digitado, restante, total) {
	tam = txarea.value.length;
	str="";
	str=str+tam;
	document.getElementById(digitado).innerHTML = str;
	document.getElementById(restante).innerHTML = total - str;

	if (tam > total){
		aux = txarea.value;
		txarea.value = aux.substring(0,total);
		document.getElementById(digitado).innerHTML = total
		document.getElementById(restante).innerHTML = 0
	}
}


function presionoEnter(e) {
  tecla = (document.all) ? e.keyCode : e.which;
  if (tecla==13){
  	return true;
  } else {
  	return false;
  }
}

function addEvent(obj, evType, fn){
	if (obj.addEventListener){
		obj.addEventListener(evType, fn, false);
		return true;
	} else if (obj.attachEvent){
		var r = obj.attachEvent("on"+evType, fn);
		return r;
	} else {
		return false;
	}
}

function login(frm) {
	if (!verify(frm)) {
		return;
	}
	var param;
	for (i=0; i<frm.elements.length; i++) {
		param = param + '&' + frm.elements[i].name + '=' + frm.elements[i].value; 
	}
	new Ajax.Request(frm.action + '?par=' + Math.random(),
		{ 
			method: frm.method,
			parameters: param,
			contentType: 'application/x-www-form-urlencoded',
			onSuccess: function(transport){
			  	var response = transport.responseText.evalJSON();
			  	logInResponse(response);
			}
		}
	);
}

function logInResponse(obj) {
	if (obj.success) {
		
		$("logIN").style.display = 'none';
		$("logOUT").style.display = 'block';
		$("nombre").innerHTML = obj.nombre;
		$("apellido").innerHTML = obj.apellido;
		alert(obj.mensaje);
	} else {
		alert(obj.mensaje);	
	}	
}

function logOUT() {
	new Ajax.Request('/LogOut' + '?par=' + Math.random(),
		{ 
			method: 'POST',
			contentType: 'application/x-www-form-urlencoded',
			onSuccess: function(transport){
			  	var response = transport.responseText.evalJSON();
			  	logOutResponse(response);
			}
		}
	);
}

function logOutResponse(obj) {
	if (obj.success) {
		alert(obj.mensaje);
		$("logIN").style.display = 'block';
		$("logOUT").style.display = 'none';
		$("nombre").innerHTML = '';
		$("apellido").innerHTML = '';
	}	
		
}