// JavaScript Document

/****************************************************************************************
*             Funcion que compara dos fecha una fecha de inicio y una fecha final		*
* 				Retorna TRUE si la fecha inicial es menos igual a la final				*
*****************************************************************************************/ 
function comparar_fechas(fecha_inicial,fecha_final) //Formato dd/mm/yyyy
{ 	
	var validar = true;
	var dia1 =fecha_inicial.substring(0,2);
	var mes1 =fecha_inicial.substring(3,5);
	var anio1=fecha_inicial.substring(6,10);

	var dia2 =fecha_final.substring(0,2);
	var mes2 =fecha_final.substring(3,5);
	var anio2=fecha_final.substring(6,10);

	dia1 = parseInt(dia1,10);
	mes1 = parseInt(mes1,10);
	anio1= parseInt(anio1,10);

	dia2 = parseInt(dia2,10);
	mes2 = parseInt(mes2,10);
	anio2= parseInt(anio2,10); 
 
	if (anio1 > anio2)
	{
	  validar = false;	  
	} 
	if ((anio1 == anio2) && (mes1>mes2)) 
	{
  	  validar = false;	  
	}
	if ((anio1 == anio2) && (mes1==mes2) && (dia1>dia2))
	{
  	  validar = false;	  
	}
return validar; 
}


/****************************************************************************************
*       Funcion que retira todos los espacio a la derecha e izquierda de una cadena		*
*																						*
*****************************************************************************************/ 
function trim(cadena)
{
	for(i=0; i<cadena.length; )
	{
		if(cadena.charAt(i)==" ")
			cadena=cadena.substring(i+1, cadena.length);
		else
			break;
	}

	for(i=cadena.length-1; i>=0; i=cadena.length-1)
	{
		if(cadena.charAt(i)==" ")
			cadena=cadena.substring(0,i);
		else
			break;
	}
	
	return cadena;
}


/****************************************************************************************
*       Funcion que limita los cararteres de un campo									*
*																						*
*****************************************************************************************/ 
function LimitText(fieldObj,maxChars)
{
  var result = true;
  if (fieldObj.value.length >= maxChars)
    {
    result = false;
	}
	
	if (result==false)
	{
	  alert("Máximo " + maxChars + " Caracteres")
	  fieldObj.value = fieldObj.value.substring(0, maxChars);
	  fieldObj.focus();
	}
}

/****************************************************************************************
*       Funcion que Valida campo numerico												*
*																						*
*****************************************************************************************/ 
//aceptar solo numeros
function acceptNum(evt){	
	// NOTE: Backspace = 8, Enter = 13, '0' = 48, '9' = 57	
	var nav4 = window.Event ? true : false;
	
	var key = nav4 ? evt.which : evt.keyCode;	

	return (key <= 13 || (key >= 48 && key <= 57));
}
//fin de aceptar solo numeros
/****************************************************************************************
*       Funcion que Valida campo												*
*																						*
*****************************************************************************************/ 
function validar(objeto,tipo)
{
	if(tipo==0) // Aceptar solo numeros
	{
		//alert(objeto.value);
		var checkOK = "0123456789";
		var checkStr = objeto.value;
		var allValid = true;
		for (i = 0;  i < checkStr.length;  i++)
		{
			ch = checkStr.charAt(i);
			for (j = 0;  j < checkOK.length;  j++)
			if (ch == checkOK.charAt(j))
				break;
			if (j == checkOK.length)
			{
			 	var cambio=checkStr.substring(-1,i) 
				objeto.value=cambio;
				alert("Escriba sólo Digito Caracteres en el campo");
			  	break;
			}
		}
	} 
	if(tipo==1) // Aceptar solo caracteres
	{
		//alert(objeto.value);
		var checkOK = "ABCDEFGHIJKLMNÑOPQRSTUVWXYZÁÉÍÓÚabcdefghijklmnñopqrstuvwxyzáéíóú. ";
		var checkStr = objeto.value;
		var allValid = true;
		for (i = 0;  i < checkStr.length;  i++)
		{
			ch = checkStr.charAt(i);
			for (j = 0;  j < checkOK.length;  j++)
			if (ch == checkOK.charAt(j))
				break;
			if (j == checkOK.length)
			{
			 	var cambio=checkStr.substring(-1,i) 
				objeto.value=cambio;
				alert("En el campo sólo es permitido escribir Letras ");
			  	break;
			}
		}
	} 
	
	if(tipo==2) // Aceptar  numeros, Letras Y GUION (-)
	{
		//alert(objeto.value);
		var checkOK = "0123456789ABCDEFGHIJKLMNÑOPQRSTUVWXYZÁÉÍÓÚabcdefghijklmnñopqrstuvwxyzáéíóú- ";
		var checkStr = objeto.value;
		var allValid = true;
		for (i = 0;  i < checkStr.length;  i++)
		{
			ch = checkStr.charAt(i);
			for (j = 0;  j < checkOK.length;  j++)
			if (ch == checkOK.charAt(j))
				break;
			if (j == checkOK.length)
			{
			 	var cambio=checkStr.substring(-1,i) 
				objeto.value=cambio;
				alert("Escriba sólo Caracteres validos en el campo");
			  	break;
			}
		}
	} 
	
}
	
/****************************************************************************************
*     Funcion para abrir otra ventana 													*
*																						*
****************************************************************************************/
function abrir_ventana(url,x)
{
   if (x==null)
   {x=530;}
   newwindow=window.open(url,'name'+url,'height=470,width='+x+',scrollbars=yes,resizable=yes');
  if (window.focus) {newwindow.focus()}
}
// fin de abrir ventana
/****************************************************************************************
*     Funcion para colocar formato de moneda  000,000,000.00 													*
*																						*
****************************************************************************************/
function FormatCurrency(objNum)
 {
	  /*if(objNum=='txt_subtotal_bs')
	  {
		//alert(document.getElementById(objNum).value);		
		num = document.getElementById(objNum).value
	  }
	  else*/
	  var num = objNum.value;
	  var ent, dec;
	  if (num != '' && num != objNum.oldvalue)
	  {
		   num = MoneyToNumber(num);
		   if (isNaN(num) || num==0)
		   {
				if(isNaN(objNum.oldvalue))
				objNum.value="";
				else
				objNum.value = objNum.oldvalue;
				
				if (num==0)
					objNum.value = 0;
		   }
		   else
		   {//alert(num.split('.')[0])
				var ev = (navigator.appName.indexOf('Netscape') != -1)?Event:event;
				if (ev.keyCode == 190 || !isNaN(num.split('.')[1]))
				{//alert(num.split('.')[0])
					 objNum.value = AddCommas(num.split('.')[0])+'.'+num.split('.')[1].substring(0,2);
					 //objNum.value = AddCommas(num.split('.')[0]);
				}
				else
				{//alert(num.split('.')[0])
					 objNum.value = AddCommas(num.split('.')[0]);
				}
				objNum.oldvalue = objNum.value;
		   }
	  }
	return
 }
// fin de FormatCurrency
/****************************************************************************************
*     Funcion para pasar de formato de moneda a numerico 													*
*																						*
****************************************************************************************/
 function MoneyToNumber(num)
 {
	  return (num.replace(/,/g, ''));
	  
 }
// fin de MoneyToNumber 
/****************************************************************************************
*     Funcion para pasar agregar comas al formato moneda 													*
*																						*
****************************************************************************************/
 function AddCommas(num)
 {
	  numArr=new String(num).split('').reverse();
	  for (i=3;i<numArr.length;i+=3)
	  {
		   numArr[i]+=',';
	  }
	  return numArr.reverse().join('');
 }
 // fin de AddCommas
 
 /************************************************************************************/
 function validar_objeto(objeto)
{
	var checkOK = "0123456789-";
	var checkStr = objeto.value;
	var allValid = true;
	for (i = 0;  i < checkStr.length;  i++)
	{
		ch = checkStr.charAt(i);
		for (j = 0;  j < checkOK.length;  j++)
		if (ch == checkOK.charAt(j))
			break;
		if (j == checkOK.length)
		{
			var cambio=checkStr.substring(-1,i) 
			objeto.value=cambio;
			alert("Estos carácteres no están permitidos");
			break;
		}
	}
}
 /************************************************************************************/
 
 /****************************************************************************************/
 /*                                 Abrir Nueva ventana                                  */
 /****************************************************************************************/
function abrir_nueva_ventana(url,x,nombre)
{
   if (x==null)
   {x=530;}
   nueva=window.open(url,nombre,'height=470,width='+x+',scrollbars=yes,resizable=yes');
  if (window.focus) {nueva.focus()}
}


  /****************************************************************************************/
 /*                                Limita el numero de decimales de un float                                 */
 /****************************************************************************************/

function fix(fixNumber, decimalPlaces)
{
	var div = Math.pow(10,decimalPlaces);
	fixNumber = Math.round(fixNumber * div) / div;
	return fixNumber;
}
 /****************************************************************************************/
 /*********************************************************************************************/
//ELIMINA TODOS TIPO DE ESPACIO
/**********************************************************************************************/
  function lTrim(sStr){
     while (sStr.charAt(0) == " ") 
      sStr = sStr.substr(1, sStr.length - 1);
     return sStr;
    }

    function rTrim(sStr){
     while (sStr.charAt(sStr.length - 1) == " ") 
      sStr = sStr.substr(0, sStr.length - 1);
     return sStr;
    }

    function allTrim(sStr){
     return rTrim(lTrim(sStr));
    } 
/***************************************************************************************************/
//Funcion Formato Numerico
/*****************************************************************************************************/
function number_format (number, decimals, dec_point, thousands_sep)
{
  var exponent = "";
  var numberstr = number.toString ();
  var eindex = numberstr.indexOf ("e");
  if (eindex > -1)
  {
    exponent = numberstr.substring (eindex);
    number = parseFloat (numberstr.substring (0, eindex));
  }
  
  if (decimals != null)
  {
    var temp = Math.pow (10, decimals);
    number = Math.round (number * temp) / temp;
  }
  var sign = number < 0 ? "-" : "";
  var integer = (number > 0 ? 
      Math.floor (number) : Math.abs (Math.ceil (number))).toString ();
  
  var fractional = number.toString ().substring (integer.length + sign.length);
  dec_point = dec_point != null ? dec_point : ".";
  fractional = decimals != null && decimals > 0 || fractional.length > 1 ? 
               (dec_point + fractional.substring (1)) : "";
  if (decimals != null && decimals > 0)
  {
    for (i = fractional.length - 1, z = decimals; i < z; ++i)
      fractional += "0";
  }
  
  thousands_sep = (thousands_sep != dec_point || fractional.length == 0) ? 
                  thousands_sep : null;
  if (thousands_sep != null && thousands_sep != "")
  {
	for (i = integer.length - 3; i > 0; i -= 3)
      integer = integer.substring (0 , i) + thousands_sep + integer.substring (i);
  }
  
  return sign + integer + fractional + exponent;
}


//Para verificar que se haya firmado
function confirmar_firma(firmaTextField)
{
	//var firmaTextField = document.getElementById('firma');
	if (firmaTextField.value == "") {
		alert ("Debe Firmar primero antes de Aprobar");		
		return 1;		
	}
	return 1;
}