function Pergunta()
{
	if(confirm("Deseja realmente realizar essa alteração?"))
	{
		return true;
	}
	else
	{
		return false;
	}
}

function PerguntaExcluir()
{
	if(confirm("Deseja realmente continuar com a exclusão?"))
	{
		return true;
	}
	else
	{
		return false;
	}
}

function AbrirJanela(url, largura, altura)
{
	window.open (url, "", "toolbar=0,location=0,directories=0,menuBar=0,scrollbars=0,resizable=0,width=" + largura + ",height=" + altura + ",left=200,top=200");
}

function ValidarEmail(mail)
{
	var er = new RegExp(/^[A-Za-z0-9_\-\.]+@[A-Za-z0-9_\-\.]{2,}\.[A-Za-z0-9]{2,}(\.[A-Za-z0-9])?/);

	if(typeof(mail) == "string")
	{
		if(er.test(mail))
		{ 
			return true; 
		}
	}
	else if(typeof(mail) == "object")
	{
		if(er.test(mail.value))
		{
			return true;
		}
		else
		{
			mail.value = "";	
		}
	}
	else
	{
		return false;
	}
}

    //exp = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{1,3})+$/ 
function mascara(o,f){
    v_obj=o
    v_fun=f
    setTimeout("execmascara()",1)
}

function execmascara(){
   v_obj.value= v_fun(v_obj.value);
}

function leech(v){
    v=v.replace(/o/gi,"0")
    v=v.replace(/i/gi,"1")
    v=v.replace(/z/gi,"2")
    v=v.replace(/e/gi,"3")
    v=v.replace(/a/gi,"4")
    v=v.replace(/s/gi,"5")
    v=v.replace(/t/gi,"7")
    return v
}

function soNumeros(v){
    return v.replace(/\D/g,"")
}



function telefone(v){
    v=v.replace(/\D/g,"")                 //Remove tudo o que não é dígito
    v=v.replace(/^(\d\d)(\d)/g,"($1) $2") //Coloca parênteses em volta dos dois primeiros dígitos
    v=v.replace(/(\d{4})(\d)/,"$1-$2")    //Coloca hífen entre o quarto e o quinto dígitos
    return v
}

function cpf(v){
    v=v.replace(/\D/g,"")                    //Remove tudo o que não é dígito
    v=v.replace(/(\d{3})(\d)/,"$1.$2")       //Coloca um ponto entre o terceiro e o quarto dígitos
    v=v.replace(/(\d{3})(\d)/,"$1.$2")       //Coloca um ponto entre o terceiro e o quarto dígitos
                                             //de novo (para o segundo bloco de números)
    v=v.replace(/(\d{3})(\d{1,2})$/,"$1-$2") //Coloca um hífen entre o terceiro e o quarto dígitos
    return v
}

function cep(v){
    v=v.replace(/\D/g,"")                //Remove tudo o que não é dígito
    v=v.replace(/^(\d{5})(\d)/,"$1-$2") //Esse é tão fácil que não merece explicações
    return v
}

function cnpj(v){
    v=v.replace(/\D/g,"")                           //Remove tudo o que não é dígito
    v=v.replace(/^(\d{2})(\d)/,"$1.$2")             //Coloca ponto entre o segundo e o terceiro dígitos
    v=v.replace(/^(\d{2})\.(\d{3})(\d)/,"$1.$2.$3") //Coloca ponto entre o quinto e o sexto dígitos
    v=v.replace(/\.(\d{3})(\d)/,".$1/$2")           //Coloca uma barra entre o oitavo e o nono dígitos
    v=v.replace(/(\d{4})(\d)/,"$1-$2")              //Coloca um hífen depois do bloco de quatro dígitos
    return v
}

function romanos(v){
    v=v.toUpperCase()             //Maiúsculas
    v=v.replace(/[^IVXLCDM]/g,"") //Remove tudo o que não for I, V, X, L, C, D ou M
    //Essa é complicada! Copiei daqui: http://www.diveintopython.org/refactoring/refactoring.html
    while(v.replace(/^M{0,4}(CM|CD|D?C{0,3})(XC|XL|L?X{0,3})(IX|IV|V?I{0,3})$/,"")!="")
        v=v.replace(/.$/,"")
    return v
}

function site(v){
    //Esse sem comentarios para que você entenda sozinho ;-)
    v=v.replace(/^http:\/\/?/,"")
    dominio=v
    caminho=""
    if(v.indexOf("/")>-1)
        dominio=v.split("/")[0]
        caminho=v.replace(/[^\/]*/,"")
    dominio=dominio.replace(/[^\w\.\+-:@]/g,"")
    caminho=caminho.replace(/[^\w\d\+-@:\?&=%\(\)\.]/g,"")
    caminho=caminho.replace(/([\?&])=/,"$1")
    if(caminho!="")dominio=dominio.replace(/\.+$/,"")
    v="http://"+dominio+caminho
    return v
}

//valida telefone
function ValidaEmail(email){
    exp = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{1,3})+$/ 
    if(!exp.test(email.value))
	{
		return false;
	}
	else
	{
		return true;
	}
}

//valida telefone
function ValidaTelefone(tel){
    exp = /\(\d{2}\)\ \d{4}\-\d{4}/
    if(!exp.test(tel.value))
	{
		return false;
	}
	else
	{
		return true;
	}	
}

//valida CEP
function ValidaCep(cep){
    exp = /\d{5}\-\d{3}/
    if(!exp.test(cep.value))
	{
		return false;
	}
	else
	{
		return true;
	}	
}

//valida data
function ValidaData(data){
    exp = /\d{2}\/\d{2}\/\d{4}/

		if(!exp.test(data.value))
		{
			return false;
		}
		else
		{
			return true;
		}

}

//valida o CPF digitado
function ValidaCPF(Objcpf){
    var cpf = Objcpf.value;
    exp = /\.|\-/g
    cpf = cpf.toString().replace( exp, "" );
    var digitoDigitado = eval(cpf.charAt(9)+cpf.charAt(10));
    var soma1=0, soma2=0;
    var vlr =11;
    
    for(i=0;i<9;i++){
        soma1+=eval(cpf.charAt(i)*(vlr-1));
        soma2+=eval(cpf.charAt(i)*vlr);
        vlr--;
    }    
    soma1 = (((soma1*10)%11)==10 ? 0:((soma1*10)%11));
    soma2=(((soma2+(2*soma1))*10)%11);
    
    var digitoGerado=(soma1*10)+soma2;
    if(digitoGerado!=digitoDigitado)    
	{
		return false;
	}
	else
	{
		return true;
	}	
}

//valida numero inteiro com mascara
function mascaraInteiro(objeto){
	alert(objeto.value);
    if (objeto.keyCode < 48 || objeto.keyCode > 57){
		event.returnValue = false;
        return false;
    }
    return true;
}

//valida o CNPJ digitado
function ValidaCNPJ(ObjCnpj){
    var cnpj = ObjCnpj.value;
    var valida = new Array(6,5,4,3,2,9,8,7,6,5,4,3,2);
    var dig1= new Number;
    var dig2= new Number;
    
    exp = /\.|\-|\//g
    cnpj = cnpj.toString().replace( exp, "" );
    var digito = new Number(eval(cnpj.charAt(12)+cnpj.charAt(13)));
        
    for(i = 0; i<valida.length; i++){
        dig1 += (i>0? (cnpj.charAt(i-1)*valida[i]):0);    
        dig2 += cnpj.charAt(i)*valida[i];    
    }
    dig1 = (((dig1%11)<2)? 0:(11-(dig1%11)));
    dig2 = (((dig2%11)<2)? 0:(11-(dig2%11)));
    
    if(((dig1*10)+dig2) != digito)    
	{
		return false;
	}
	else
	{
		return true;
	}	       
}

//formata de forma generica os campos
function formataCampo(campo, Mascara, evento) {
    var boleanoMascara;
    
    var Digitato = evento;
    exp = /\-|\.|\/|\(|\)| /g
    campoSoNumeros = campo.value.toString().replace( exp, "" );
  
    var posicaoCampo = 0;    
    var NovoValorCampo="";
    var TamanhoMascara = campoSoNumeros.length;;
    
    if (Digitato != 8) { // backspace
        for(i=0; i<= TamanhoMascara; i++) {
            boleanoMascara  = ((Mascara.charAt(i) == "-") || (Mascara.charAt(i) == ".")
                                || (Mascara.charAt(i) == "/"))
            boleanoMascara  = boleanoMascara || ((Mascara.charAt(i) == "(")
                                || (Mascara.charAt(i) == ")") || (Mascara.charAt(i) == " "))
            if (boleanoMascara) {
                NovoValorCampo += Mascara.charAt(i);
                  TamanhoMascara++;
            }else {
                NovoValorCampo += campoSoNumeros.charAt(posicaoCampo);
                posicaoCampo++;
              }           
          }    
        campo.value = NovoValorCampo;
          return true;
    }else {
        return true;
    }
}


//-->>> FUNCAO QUE VALIDA DATA
<!-- Begin
// Check browser version
var isNav4 = false, isNav5 = false, isIE4 = false
var strSeperator = "/";
// If you are using any Java validation on the back side you will want to use the / because
// Java date validations do not recognize the dash as a valid date separator.
var vDateType = 1; // Global value for type of date format
//                1 = mm/dd/yyyy
//                2 = yyyy/dd/mm  (Unable to do date check at this time)
//                3 = dd/mm/yyyy
var vYearType = 4; //Set to 2 or 4 for number of digits in the year for Netscape
var vYearLength = 2; // Set to 4 if you want to force the user to enter 4 digits for the year before validating.
var err = 0; // Set the error code to a default of zero
if(navigator.appName == "Netscape") {
  if (navigator.appVersion < "5") {
    isNav4 = true;
    isNav5 = false;
  }
  else
    if (navigator.appVersion > "4") {
      isNav4 = false;
      isNav5 = true;
   }
}
else {
   isIE4 = true;
}

function DateFormat(vDateName, vDateValue, e, dateCheck, dateType)
{
//dateType = 1; //FIXO
vDateType = dateType;
// vDateName = object name
// vDateValue = value in the field being checked
// e = event
// dateCheck
// True  = Verify that the vDateValue is a valid date
// False = Format values being entered into vDateValue only
// vDateType
// 1 = mm/dd/yyyy
// 2 = yyyy/mm/dd
// 3 = dd/mm/yyyy
//Enter a tilde sign for the first number and you can check the variable information.
if (vDateValue == "~") {
alert("AppVersion = "+navigator.appVersion+" \nNav. 4 Version = "+isNav4+" \nNav. 5 Version = "+isNav5+" \nIE Version = "+isIE4+" \nYear Type = "+vYearType+" \nDate Type = "+vDateType+" \nSeparator = "+strSeperator);
vDateName.value = "";
vDateName.focus();
return true;
}
var whichCode = (window.Event) ? e.which : e.keyCode;

if(e.keyCode == 13)
{
    return false;
}

// Check to see if a seperator is already present.
// bypass the date if a seperator is present and the length greater than 8
if (vDateValue.length > 8 && isNav4) {
   if ((vDateValue.indexOf("-") >= 1) || (vDateValue.indexOf("/") >= 1))
      return true;
}
//Eliminate all the ASCII codes that are not valid
var alphaCheck = " abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/-";
if (alphaCheck.indexOf(vDateValue) >= 1) {
if (isNav4) {
vDateName.value = "";
vDateName.focus();
vDateName.select();
return false;
}
else {
vDateName.value = vDateName.value.substr(0, (vDateValue.length-1));
vDateName.value = "";
vDateName.focus();
vDateName.select();

return false;
   }
}
if (whichCode == 8) //Ignore the Netscape value for backspace. IE has no value
   return false;
else {
   //Create numeric string values for 0123456789/
   //The codes provided include both keyboard and keypad values
   var strCheck = '13,47,48,49,50,51,52,53,54,55,56,57,58,59,95,96,97,98,99,100,101,102,103,104,105';
   if (strCheck.indexOf(whichCode) != -1) {
      if (isNav4) {
         if (((vDateValue.length < 6 && dateCheck) || (vDateValue.length == 7 && dateCheck)) && (vDateValue.length >=1)) {
            alert("Data Inválida\nPor favor, insira uma data válida!");
            vDateName.value = "";
            vDateName.focus();
            vDateName.select();
            return false;
         }
        if (vDateValue.length == 6 && dateCheck) {
           var mDay = vDateName.value.substr(2,2);
           var mMonth = vDateName.value.substr(0,2);
           var mYear = vDateName.value.substr(4,4)
           //Turn a two digit year into a 4 digit year
           if (mYear.length == 2 && vYearType == 4) {
              var mToday = new Date();
              //If the year is greater than 30 years from now use 19, otherwise use 20
              var checkYear = mToday.getFullYear() + 30;
              var mCheckYear = '20' + mYear;
              if (mCheckYear >= checkYear)
                 mYear = '19' + mYear;
              else
                 mYear = '20' + mYear;
           }
           var vDateValueCheck = mMonth+strSeperator+mDay+strSeperator+mYear;
           if (!dateValid(vDateValueCheck)) {
              alert("Data Inválida\nPor favor, insira uma data válida!");
              vDateName.value = "";
              vDateName.focus();
              vDateName.select();
              return false;
           }
           return true;
        }
        else {
           // Reformat the date for validation and set date type to a 1
           if (vDateValue.length >= 8  && dateCheck) {
           if (vDateType == 1) // mmddyyyy
           {
              var mDay = vDateName.value.substr(2,2);
              var mMonth = vDateName.value.substr(0,2);
              var mYear = vDateName.value.substr(4,4)
              vDateName.value = mMonth+strSeperator+mDay+strSeperator+mYear;
           }
           if (vDateType == 2) // yyyymmdd
           {
              var mYear = vDateName.value.substr(0,4)
              var mMonth = vDateName.value.substr(4,2);
              var mDay = vDateName.value.substr(6,2);
              vDateName.value = mYear+strSeperator+mMonth+strSeperator+mDay;
           }
           if (vDateType == 3) // ddmmyyyy
           {
              var mMonth = vDateName.value.substr(2,2);
              var mDay = vDateName.value.substr(0,2);
              var mYear = vDateName.value.substr(4,4)
              vDateName.value = mDay+strSeperator+mMonth+strSeperator+mYear;
           }
          //Create a temporary variable for storing the DateType and change
          //the DateType to a 1 for validation.
          var vDateTypeTemp = vDateType;
          vDateType = 1;
          var vDateValueCheck = mMonth+strSeperator+mDay+strSeperator+mYear;
          if (!dateValid(vDateValueCheck)) {
             alert("Data Inválida\nPor favor, insira uma data válida!");
             vDateType = vDateTypeTemp;
             vDateName.value = "";
             vDateName.focus();
             vDateName.select();
             return false;
          }
          vDateType = vDateTypeTemp;
          return true;
        }
        else {
           if (((vDateValue.length < 8 && dateCheck) || (vDateValue.length == 9 && dateCheck)) && (vDateValue.length >=1)) {
              alert("Data Inválida\nPor favor, insira uma data válida!");
              vDateName.value = "";
              vDateName.focus();
              vDateName.select();
              return false;
           }
        }
      }
   }
else {
// Non isNav Check
if (((vDateValue.length < 8 && dateCheck) || (vDateValue.length == 9 && dateCheck)) && (vDateValue.length >=1)) {
   alert("Data Inválida\nPor favor, insira uma data válida!");
   vDateName.value = "";
   vDateName.focus();
   return true;
}
// Reformat date to format that can be validated. mm/dd/yyyy
if (vDateValue.length >= 8 && dateCheck) {
   // Additional date formats can be entered here and parsed out to
   // a valid date format that the validation routine will recognize.
   if (vDateType == 1) // mm/dd/yyyy
   {
      var mMonth = vDateName.value.substr(0,2);
      var mDay = vDateName.value.substr(3,2);
      var mYear = vDateName.value.substr(6,4)
   }
   if (vDateType == 2) // yyyy/mm/dd
   {
      var mYear = vDateName.value.substr(0,4)
      var mMonth = vDateName.value.substr(5,2);
      var mDay = vDateName.value.substr(8,2);
   }
   if (vDateType == 3) // dd/mm/yyyy
   {
      var mDay = vDateName.value.substr(0,2);
      var mMonth = vDateName.value.substr(3,2);
      var mYear = vDateName.value.substr(6,4)
   }
   if (vYearLength == 4) {
      if (mYear.length < 4) {
      alert("Data Inválida\nPor favor, insira uma data válida!");
      vDateName.value = "";
      vDateName.focus();
      return true;
      }
   }
// Create temp. variable for storing the current vDateType
var vDateTypeTemp = vDateType;
// Change vDateType to a 1 for standard date format for validation
// Type will be changed back when validation is completed.
vDateType = 1;
// Store reformatted date to new variable for validation.
var vDateValueCheck = mMonth+strSeperator+mDay+strSeperator+mYear;
if (mYear.length == 2 && vYearType == 4 && dateCheck) {
//Turn a two digit year into a 4 digit year
var mToday = new Date();
//If the year is greater than 30 years from now use 19, otherwise use 20
var checkYear = mToday.getFullYear() + 30;
var mCheckYear = '20' + mYear;
if (mCheckYear >= checkYear)
mYear = '19' + mYear;
else
mYear = '20' + mYear;
vDateValueCheck = mMonth+strSeperator+mDay+strSeperator+mYear;
// Store the new value back to the field.  This function will
// not work with date type of 2 since the year is entered first.
if (vDateTypeTemp == 1) // mm/dd/yyyy
vDateName.value = mMonth+strSeperator+mDay+strSeperator+mYear;
if (vDateTypeTemp == 3) // dd/mm/yyyy
vDateName.value = mDay+strSeperator+mMonth+strSeperator+mYear;
}
if (!dateValid(vDateValueCheck)) {
alert("Data Inválida\nPor favor, insira uma data válida!");
vDateType = vDateTypeTemp;
vDateName.value = "";
vDateName.focus();
return true;
}
vDateType = vDateTypeTemp;
return true;
}
else {
if (vDateType == 1) {
if (vDateValue.length == 2) {
vDateName.value = vDateValue+strSeperator;
}
if (vDateValue.length == 5) {
vDateName.value = vDateValue+strSeperator;
   }
}
if (vDateType == 2) {
if (vDateValue.length == 4) {
vDateName.value = vDateValue+strSeperator;
}
if (vDateValue.length == 7) {
vDateName.value = vDateValue+strSeperator;
   }
}
if (vDateType == 3) {
if (vDateValue.length == 2) {
vDateName.value = vDateValue+strSeperator;
}
if (vDateValue.length == 5) {
vDateName.value = vDateValue+strSeperator;
   }
}
return true;
   }
}
if (vDateValue.length == 10&& dateCheck) {
if (!dateValid(vDateName)) {
// Un-comment the next line of code for debugging the dateValid() function error messages
//alert(err);
alert("Data Inválida\nPor favor, insira uma data válida!");
vDateName.focus();
vDateName.select();
   }
}
return false;
}
else {
// If the value is not in the string return the string minus the last
// key entered.
if (isNav4) {
vDateName.value = "";
vDateName.focus();
vDateName.select();
return false;
}
else
{
vDateName.value = vDateName.value.substr(0, (vDateValue.length-1));
return false;
         }
      }
   }
}
function dateValid(objName) {
var strDate;
var strDateArray;
var strDay;
var strMonth;
var strYear;
var intday;
var intMonth;
var intYear;
var booFound = false;
var datefield = objName;
var strSeparatorArray = new Array("-"," ","/",".");
var intElementNr;
// var err = 0;
var strMonthArray = new Array(12);
strMonthArray[0] = "Jan";
strMonthArray[1] = "Feb";
strMonthArray[2] = "Mar";
strMonthArray[3] = "Apr";
strMonthArray[4] = "May";
strMonthArray[5] = "Jun";
strMonthArray[6] = "Jul";
strMonthArray[7] = "Aug";
strMonthArray[8] = "Sep";
strMonthArray[9] = "Oct";
strMonthArray[10] = "Nov";
strMonthArray[11] = "Dec";
//strDate = datefield.value;
strDate = objName;
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 {
strDay = strDateArray[0];
strMonth = strDateArray[1];
strYear = strDateArray[2];
}
booFound = true;
   }
}
if (booFound == false) {
if (strDate.length>5) {
strDay = strDate.substr(0, 2);
strMonth = strDate.substr(2, 2);
strYear = strDate.substr(4);
   }
}
//Adjustment for short years entered
if (strYear.length == 2) {
strYear = '20' + strYear;
}
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;
      }
   }
}
return true;
}
function LeapYear(intYear) {
if (intYear % 100 == 0) {
if (intYear % 400 == 0) { return true; }
}
else {
if ((intYear % 4) == 0) { return true; }
}
return false;
}
//  End -->
//--<<< FIM DA FUNCAO VALIDA DATA


function validaData(str) { 

	dia = (str.value.substring(0,2)); 
    mes = (str.value.substring(3,5)); 
	ano = (str.value.substring(6,10)); 

	cons = true; 
	
	// verifica se foram digitados números
	if (isNaN(dia) || isNaN(mes) || isNaN(ano)){
		//alert("Preencha a data somente com números."); 
		str.value = "";
		str.focus(); 
		return false;
	}
		
    // verifica o dia valido para cada mes 
    if ((dia < 01)||(dia < 01 || dia > 30) && 
		(mes == 04 || mes == 06 || 
		 mes == 09 || mes == 11 ) || 
		 dia > 31) { 
    	cons = false; 
	} 

	// verifica se o mes e valido 
	if (mes < 01 || mes > 12 ) { 
		cons = false; 
	} 

	// verifica se e ano bissexto 
	if (mes == 2 && ( dia < 01 || dia > 29 || 
	   ( dia > 28 && 
	   (parseInt(ano / 4) != ano / 4)))) { 
		cons = false; 
	} 
    
	if (cons == false) { 
		if(!str.value == '')
		{
    		str.value = "";
			str.focus(); 
			str.value="";
			return false;
		}
	} 
}