// Contar texto de un textarea
function textCounter(field, countfield, maxlimit) {
  if (field.value.length > maxlimit)
      {field.value = field.value.substring(0, maxlimit);}
      else
      {countfield.value = maxlimit - field.value.length;}
}


// Eliminar espacios en blanco
function ltrim ( s ) 
{ 
	return s.replace( /^\s*/, "" ) 
} 

function rtrim ( s ) 
{ 
	return s.replace( /\s*$/, "" ); 
} 

function trim ( s ) 
{ 
	return rtrim(ltrim(s)); 
} 

// Validación de datos
var digits = "0123456789";

// decimal point character differs by language and culture
var decimalPointDelimiter = "."

// Returns true if character c is a digit 
// (0 .. 9).

var defaultEmptyOK = false;

// Check whether string s is empty.

function isEmpty(s)
{   return ((s == null) || (trim(s).length == 0))
}

function isDigit (c)
{   return ((c >= "0") && (c <= "9"))
}

// isInteger (STRING s [, BOOLEAN emptyOK])
// 
// Returns true if all characters in string s are numbers.
//
// Accepts non-signed integers only. Does not accept floating 
// point, exponential notation, etc.
//
// We don't use parseInt because that would accept a string
// with trailing non-numeric characters.
//
// By default, returns defaultEmptyOK if s is empty.
// There is an optional second argument called emptyOK.
// emptyOK is used to override for a single function call
//      the default behavior which is specified globally by
//      defaultEmptyOK.
// If emptyOK is false (or any value other than true), 
//      the function will return false if s is empty.
// If emptyOK is true, the function will return true if s is empty.
//
// EXAMPLE FUNCTION CALL:     RESULT:
// isInteger ("5")            true 
// isInteger ("")             defaultEmptyOK
// isInteger ("-5")           false
// isInteger ("", true)       true
// isInteger ("", false)      false
// isInteger ("5", false)     true

function isInteger (s)

{   var i;

    if (isEmpty(s)) 
       if (isInteger.arguments.length == 1) return defaultEmptyOK;
       else return (isInteger.arguments[1] == true);

    // Search through string's characters one by one
    // until we find a non-numeric character.
    // When we do, return false; if we don't, return true.

    for (i = 0; i < s.length; i++)
    {   
        // Check that current character is number.
        var c = s.charAt(i);
        if (!isDigit(c)) return false;
    }

    // All characters are numbers.
    return true;
}

// isSignedInteger (STRING s [, BOOLEAN emptyOK])
// 
// Returns true if all characters are numbers; 
// first character is allowed to be + or - as well.
//
// Does not accept floating point, exponential notation, etc.
//
// We don't use parseInt because that would accept a string
// with trailing non-numeric characters.
//
// For explanation of optional argument emptyOK,
// see comments of function isInteger.
//
// EXAMPLE FUNCTION CALL:          RESULT:
// isSignedInteger ("5")           true 
// isSignedInteger ("")            defaultEmptyOK
// isSignedInteger ("-5")          true
// isSignedInteger ("+5")          true
// isSignedInteger ("", false)     false
// isSignedInteger ("", true)      true

function isSignedInteger (s)

{   if (isEmpty(s)) 
       if (isSignedInteger.arguments.length == 1) return defaultEmptyOK;
       else return (isSignedInteger.arguments[1] == true);

    else {
        var startPos = 0;
        var secondArg = defaultEmptyOK;

        if (isSignedInteger.arguments.length > 1)
            secondArg = isSignedInteger.arguments[1];

        // skip leading + or -
        if ( (s.charAt(0) == "-") || (s.charAt(0) == "+") )
           startPos = 1;    
        return (isInteger(s.substring(startPos, s.length), secondArg))
    }
}

// isPositiveInteger (STRING s [, BOOLEAN emptyOK])
// 
// Returns true if string s is an integer > 0.
//
// For explanation of optional argument emptyOK,
// see comments of function isInteger.

function isPositiveInteger (s)
{   var secondArg = defaultEmptyOK;

    if (isPositiveInteger.arguments.length > 1)
        secondArg = isPositiveInteger.arguments[1];

    // The next line is a bit byzantine.  What it means is:
    // a) s must be a signed integer, AND
    // b) one of the following must be true:
    //    i)  s is empty and we are supposed to return true for
    //        empty strings
    //    ii) this is a positive, not negative, number

    return (isSignedInteger(s, secondArg)
         && ( (isEmpty(s) && secondArg)  || (parseInt (s) > 0) ) );
}

// isNonnegativeInteger (STRING s [, BOOLEAN emptyOK])
// 
// Returns true if string s is an integer >= 0.
//
// For explanation of optional argument emptyOK,
// see comments of function isInteger.

function isNonnegativeInteger (s)
{   var secondArg = defaultEmptyOK;

    if (isNonnegativeInteger.arguments.length > 1)
        secondArg = isNonnegativeInteger.arguments[1];

    // The next line is a bit byzantine.  What it means is:
    // a) s must be a signed integer, AND
    // b) one of the following must be true:
    //    i)  s is empty and we are supposed to return true for
    //        empty strings
    //    ii) this is a number >= 0

    return (isSignedInteger(s, secondArg)
         && ( (isEmpty(s) && secondArg)  || (parseInt (s) >= 0) ) );
}

// isNegativeInteger (STRING s [, BOOLEAN emptyOK])
// 
// Returns true if string s is an integer < 0.
//
// For explanation of optional argument emptyOK,
// see comments of function isInteger.

function isNegativeInteger (s)
{   var secondArg = defaultEmptyOK;

    if (isNegativeInteger.arguments.length > 1)
        secondArg = isNegativeInteger.arguments[1];

    // The next line is a bit byzantine.  What it means is:
    // a) s must be a signed integer, AND
    // b) one of the following must be true:
    //    i)  s is empty and we are supposed to return true for
    //        empty strings
    //    ii) this is a negative, not positive, number

    return (isSignedInteger(s, secondArg)
         && ( (isEmpty(s) && secondArg)  || (parseInt (s) < 0) ) );
}

// isNonpositiveInteger (STRING s [, BOOLEAN emptyOK])
// 
// Returns true if string s is an integer <= 0.
//
// For explanation of optional argument emptyOK,
// see comments of function isInteger.

function isNonpositiveInteger (s)
{   var secondArg = defaultEmptyOK;

    if (isNonpositiveInteger.arguments.length > 1)
        secondArg = isNonpositiveInteger.arguments[1];

    // The next line is a bit byzantine.  What it means is:
    // a) s must be a signed integer, AND
    // b) one of the following must be true:
    //    i)  s is empty and we are supposed to return true for
    //        empty strings
    //    ii) this is a number <= 0

    return (isSignedInteger(s, secondArg)
         && ( (isEmpty(s) && secondArg)  || (parseInt (s) <= 0) ) );
}





// isFloat (STRING s [, BOOLEAN emptyOK])
// 
// True if string s is an unsigned floating point (real) number. 
//
// Also returns true for unsigned integers. If you wish
// to distinguish between integers and floating point numbers,
// first call isInteger, then call isFloat.
//
// Does not accept exponential notation.
//
// For explanation of optional argument emptyOK,
// see comments of function isInteger.

function isFloat (s)

{   var i;
    var seenDecimalPoint = false;

    if (isEmpty(s)) 
       if (isFloat.arguments.length == 1) return defaultEmptyOK;
       else return (isFloat.arguments[1] == true);

    if (s == decimalPointDelimiter) return false;

    // Search through string's characters one by one
    // until we find a non-numeric character.
    // When we do, return false; if we don't, return true.

    for (i = 0; i < s.length; i++)
    {   
        // Check that current character is number.
        var c = s.charAt(i);

        if ((c == decimalPointDelimiter) && !seenDecimalPoint) seenDecimalPoint = true;
        else if (!isDigit(c)) return false;
    }

    // All characters are numbers.
    return true;
}

// isSignedFloat (STRING s [, BOOLEAN emptyOK])
// 
// True if string s is a signed or unsigned floating point 
// (real) number. First character is allowed to be + or -.
//
// Also returns true for unsigned integers. If you wish
// to distinguish between integers and floating point numbers,
// first call isSignedInteger, then call isSignedFloat.
//
// Does not accept exponential notation.
//
// For explanation of optional argument emptyOK,
// see comments of function isInteger.

function isSignedFloat (s)

{   if (isEmpty(s)) 
       if (isSignedFloat.arguments.length == 1) return defaultEmptyOK;
       else return (isSignedFloat.arguments[1] == true);

    else {
        var startPos = 0;
        var secondArg = defaultEmptyOK;

        if (isSignedFloat.arguments.length > 1)
            secondArg = isSignedFloat.arguments[1];

        // skip leading + or -
        if ( (s.charAt(0) == "-") || (s.charAt(0) == "+") )
           startPos = 1;    
        return (isFloat(s.substring(startPos, s.length), secondArg))
    }
}

// Para visualizar los numeros segun el decimal_symbol extraido del settings.properties

function converterDecimalSymbol(cadena)
{
	if (cadena == '')
		cadena = '0';
	return cadena.replace(delimitador,'.');
}

function deconverterDecimalSymbol(cadena)
{
	return cadena.replace('.',delimitador);
}

function Encrypt(theText) {
output = new String;
Temp = new Array();
Temp2 = new Array();
TextSize = theText.length;
for (i = 0; i < TextSize; i++) {
rnd = Math.round(Math.random() * 122) + 68;
Temp[i] = theText.charCodeAt(i) + rnd;
Temp2[i] = rnd;
}
for (i = 0; i < TextSize; i++) {
output += String.fromCharCode(Temp[i], Temp2[i]);
}
return output;
}
function unEncrypt(theText) {
output = new String;
Temp = new Array();
Temp2 = new Array();
TextSize = theText.length;
for (i = 0; i < TextSize; i++) {
Temp[i] = theText.charCodeAt(i);
Temp2[i] = theText.charCodeAt(i + 1);
}
for (i = 0; i < TextSize; i = i+2) {
output += String.fromCharCode(Temp[i] - Temp2[i]);
}
return output;
}




// No usadas

function checkDecimalNumber(event, value) 
{
	var keycode = event.keyCode
//	if (event.keyCode!=16)
//		alert("keycode="+event.keyCode);
	if ((keycode<48 || keycode>57) && keycode!=44 && keycode!=46 && keycode!=110 && keycode!=188 && keycode!=190 && keycode!=9 && keycode!=8 && keycode!=13)
	{
		return false;
	}
	else
	{
		if ( (keycode==110 || keycode==188 || keycode==190 || keycode==44 || keycode==46) && (-1!=value.indexOf(".") || -1!=value.indexOf(",")) )
		{
			return false;
		}
	}
 
}

function checkAlphanumeric(event) 
{
	var keycode = event.keyCode
	if ((keycode<48 || keycode>57) && (keycode<65 || keycode>90) && (keycode<97 || keycode>122) && keycode!=16 && keycode!=9 && keycode!=8 && keycode!=13)
	{
		return false;
	}
	else
	{
 
	}
 
}

function checkNumeric(event) 
{
	
	var keycode = event.keyCode;
	//if (event.keyCode!=16)
		//alert("keycode="+event.keyCode);

	if ((keycode<48 || keycode>57) && keycode!=37 && keycode!=39 && keycode!=9 && keycode!=8)
	{
		return false;
	}
	else
	{
		return true;
	}
}

// Determina si estamos usando IE u otro navegador
function isIE() {
	if (navigator.appName == "Microsoft Internet Explorer") {
		return true;
	} else {
		return false;
	}
}

// Abre ventana modal si se puede, si no, abre la ventana de forma normal
// Más info:
//    http://msdn.microsoft.com/workshop/author/dhtml/reference/methods/showmodaldialog.asp
//    http://www.devguru.com/features/knowledge_base/A100203.html
// Ej. de llamada: openModal("http://www.arsys.es",'',"500","400",'');
var winModalWindow;

function openModal(sUrl, sName, nWidth, nHeight,sParams) {
	var params="";
	if (false && window.showModalDialog) {
		params="dialogWidth="+nWidth+"px;dialogHeight="+nHeight+"px";
		window.showModalDialog(sUrl,null,params);
	}
	else
	{
		window.top.captureEvents (Event.CLICK|Event.FOCUS);
		window.top.onclick=IgnoreEvents;
		window.top.onfocus=HandleFocus;
		params="dependent=yes,width="+nWidth+",height="+nHeight;
		if(sParams!='') {
			params+=","+sParams;
		}
		winModalWindow = window.open(sUrl,sName,params);
		winModalWindow.focus();
	}
}


function IgnoreEvents(e)
{
  return false;
}

function HandleFocus()
{
  if (winModalWindow)
  {
    if (!winModalWindow.closed)
    {
      winModalWindow.focus();
    }
    else
    {
      window.top.releaseEvents (Event.CLICK|Event.FOCUS);
      window.top.onclick = "";
    }
  }
  return false;
}


 function validarEmail(valor) {
  if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(valor)){
   return (true)
  } else {
   return (false);
  }
 }