function extractDigits(mixedString) {
   var digitsOnly = '';
   var thisDigit = '';
   for (var i = 0; i < mixedString.length; i++) {
      thisDigit = mixedString.charAt(i);
      if (thisDigit >= '0' && thisDigit <= '9')
         digitsOnly = digitsOnly + thisDigit;
   }
   return digitsOnly;
}

function sonumero(campo) {
   var caracter = '';
   var i = campo.value.length - 1;
   caracter = campo.value.charAt(i);
   if ((caracter < '0' || caracter > '9') && caracter != ',') {
   	campo.value = campo.value.substring(0,i);
   }	
}

function documento(campo) {
   var caracter = '';
   var i = campo.value.length - 1;
   caracter = campo.value.charAt(i);
   if ((caracter < '0' || caracter > '9') && caracter != '.' && caracter != '-' ) {
   	campo.value = campo.value.substring(0,i);
   }	
}

function currencyFormat(fld, milSep, decSep, e) {
var sep = 0;
var key = '';
var i = j = 0;
var len = len2 = 0;
var strCheck = '0123456789';
var aux = aux2 = '';
var whichCode = (window.Event) ? e.which : e.keyCode;
if (whichCode == 13) return true;  // Enter
key = String.fromCharCode(whichCode);  // Get key value from key code
if (strCheck.indexOf(key) == -1) return false;  // Not a valid key
len = fld.value.length;
for(i = 0; i < len; i++)
if ((fld.value.charAt(i) != '0') && (fld.value.charAt(i) != decSep)) break;
aux = '';
for(; i < len; i++)
if (strCheck.indexOf(fld.value.charAt(i))!=-1) aux += fld.value.charAt(i);
aux += key;
len = aux.length;
if (len == 0) fld.value = '';
if (len == 1) fld.value = '0'+ decSep + '0' + aux;
if (len == 2) fld.value = '0'+ decSep + aux;
if (len > 2) {
aux2 = '';
for (j = 0, i = len - 3; i >= 0; i--) {
if (j == 3) {
aux2 += milSep;
j = 0;
}
aux2 += aux.charAt(i);
j++;
}
fld.value = '';
len2 = aux2.length;
for (i = len2 - 1; i >= 0; i--)
fld.value += aux2.charAt(i);
fld.value += decSep + aux.substr(len - 2, len);
}
return false;
}

<!-- Original:  Richard Gorremans (RichardG@spiritwolfx.com) -->
<!-- Web Site:  http://www.spiritwolfx.com -->

<!-- This script and many more are available free online at -->
<!-- The JavaScript Source!! http://javascript.internet.com -->

<!-- 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 = 3; // 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) {
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;
// 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));
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 = '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 Inv\u00E1lida\nRedigite, por favor.");
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 Inv\u00E1lida\nRedigite, por favor.");
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 Inv\u00E1lida\nRedigite, por favor.");
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 Inv\u00E1lida\nRedigite, por favor.");
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 Inv\u00E1lida\nRedigite, por favor.");
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 Inv\u00E1lida\nRedigite, por favor.");
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 Inv\u00E1lida\nRedigite, por favor.");
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 Inv\u00E1lida\nRedigite, por favor.");
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] = "Fev";
strMonthArray[2] = "Mar";
strMonthArray[3] = "Abr";
strMonthArray[4] = "Mai";
strMonthArray[5] = "Jun";
strMonthArray[6] = "Jul";
strMonthArray[7] = "Ago";
strMonthArray[8] = "Set";
strMonthArray[9] = "Out";
strMonthArray[10] = "Nov";
strMonthArray[11] = "Dez";
//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;
}


function isNum( caractere ) 
  
{ 
var strValidos = "0123456789"   
if ( strValidos.indexOf( caractere ) == -1 ) 
return false; 
return true; 
} 
  
function validaTecla(campo, event) 
 
{  
var BACKSPACE= 8; 
var key; 
var tecla; 
CheckTAB=true; 
if(navigator.appName.indexOf("Netscape")!= -1) 
  tecla= event.which; 
else 
  tecla= event.keyCode; 
  key = String.fromCharCode( tecla); 
  //alert( 'key: ' + tecla + ' -> campo: ' + campo.value); 
  if ( tecla == 13 ) 
    return false; 
  if ( tecla == BACKSPACE ) 
    return true; 
return ( isNum(key)); 
} 
  
function FormataCNPJ( el ) 
  
{ 
vr = el.value; 
tam = vr.length;
if ( vr.indexOf(".") == -1 ) 
{ 
  
if ( tam <= 2 ) 
el.value = vr; 
if ( (tam > 2) && (tam <= 6) ) 
el.value = vr.substr( 0, 2 ) + '.' + vr.substr( 2, tam ); 
if ( (tam >= 7) && (tam <= 10) ) 
el.value = vr.substr( 0, 2 ) + '.' + vr.substr( 2, 3 ) + '.' + vr.substr( 5, 3 ) + '/'; 
if ( (tam >= 11) && (tam <= 18) ) 
el.value = vr.substr( 0, 2 ) + '.' + vr.substr( 2, 3 ) + '.' + vr.substr( 5, 3 ) + '/' + vr.substr( 8, 4 ) + '-' + vr.substr( 12, 2 ) ; 
} 
  
return true; 
  
} 
  
function cgcCheck(cgcNumber) {
  var cgcDigits = extractDigits(cgcNumber);
  var cgcvaleu = false;
  if(cgcDigits.length==14){
  	var soma1=0;
  	var soma2=0
  	var peso1=2;
  	var peso2=3;
  	for (var i = 11; i >= 0; i--) {
    		soma1 += parseInt(cgcDigits.charAt(i)) * peso1;
    		peso1++;
    		if (peso1 > 9) peso1=2;
    		soma2 += parseInt(cgcDigits.charAt(i)) * peso2;
    		peso2++;
    		if (peso2 > 9) peso2=2;
  	}
  	var dv1 = 11 - (soma1 % 11);
  	if (dv1 > 9) dv1 = 0;
	soma2 += dv1 * 2;
  	var dv2 = 11 - (soma2 % 11);
  	if (dv2 > 9) dv2 = 0;
  	if ((cgcDigits.charAt(12) == dv1) && (cgcDigits.charAt(13) == dv2)) {
 		cgcvaleu = true;
  	}
  }
  return cgcvaleu
}

function cpfCheck(cpfNumber) {
  var cpfDigits = extractDigits(cpfNumber);
  var cpfvaleu = false;
  if(cpfDigits.length==11){
  	var soma1=0;
  	var soma2=0
  	var peso1=2;
  	var peso2=3;
  	for (var i = 8; i >= 0; i--) {
    		soma1 += parseInt(cpfDigits.charAt(i)) * peso1;
    		peso1++;
    		soma2 += parseInt(cpfDigits.charAt(i)) * peso2;
    		peso2++;
  	}
  	var dv1 = 11 - (soma1 % 11);
  	if (dv1 > 9) dv1 = 0;
	soma2 += dv1 * 2;
  	var dv2 = 11 - (soma2 % 11);
  	if (dv2 > 9) dv2 = 0;
  	if ((cpfDigits.charAt(9) == dv1) && (cpfDigits.charAt(10) == dv2)) cpfvaleu = true;
  	if (cpfDigits=="00000000000" || cpfDigits=="11111111111") cpfvaleu = false;
  	if (cpfDigits=="22222222222" || cpfDigits=="33333333333") cpfvaleu = false;
  	if (cpfDigits=="44444444444" || cpfDigits=="55555555555") cpfvaleu = false;
  	if (cpfDigits=="66666666666" || cpfDigits=="77777777777") cpfvaleu = false;
  	if (cpfDigits=="88888888888" || cpfDigits=="99999999999") cpfvaleu = false;
  	
  }
  return cpfvaleu
}

//  End -->

// Comunica\u00E7\u00E3o entre os dados da tela HTML da emissao de boleto e o Agente LotusScript
// Para o formulario de emissao_sindical
// Incluido para testar o CNPJ e o Sindicato

// CrossBrowser Function - - - 
// Builds the XML variables that will be sent to the agent. 
function BuildXMLVariables() 
{ 

   // This "If" condition tests the browser (for Mozzilla, non IE). 
   //  If you have a specific browser test you'd like to do here, thats fine. 
if (document.implementation.createDocument) 
	{ 
        // Mozilla, create a new DOMParser 
        var parser = new DOMParser(); 
        xmlString = "<doc>";

        // add as many as you'd like to here. These variables will be accessible via the agent. 
        xmlString = xmlString + "<DocID>" + document.forms[0].boleto_exercicio.value + "</DocID>" ;
        xmlString = xmlString + "<CGC>" + document.forms[0].cnpj_digitado.value + "</CGC>" ;
        
        xmlString = xmlString +  "</doc>" ;

        objDOM = parser.parseFromString(xmlString, "text/xml"); 
	} 



	// This "If" condition tests the browser (for IE).  If you have a specific 
	// browser test you'd like to do here, thats fine.   
else if (window.ActiveXObject) 
	{ 
        // IE, create a new XML document using ActiveX 
        // and use loadXML as a DOM parser. 
        var objDOM = new ActiveXObject("Microsoft.XMLDOM") 

        RootEl = objDOM.createNode(1, "RootElement", "") 
        objDOM.documentElement = RootEl 

        // add as many of these nodes as you need. 
        // these variables will be accessible via the agent. 
        objHeaders = objDOM.createNode(1, "DocID", "") 
	   objHeaders.text = document.all.boleto_exercicio.value
	   RootEl.appendChild(objHeaders)

	   objHeaders = objDOM.createNode(1, "CGC", "")
	   objHeaders.text = document.all.cnpj_digitado.value
	   RootEl.appendChild(objHeaders)
	} 
return objDOM; 
} 


// Cross-Browser ----- Calls the Agent 
function runAgent(strAgentName, strXMLvariables) 
{ 
strUrl = document.forms[0].pathName.value + "/"+strAgentName+"?OpenAgent"; 

// This "If" condition tests the browser (for Mozzilla, non IE). 
//  If you have a specific browser test you'd like to do here, thats fine. 
if (document.implementation.createDocument) 
	{ 
        objHTTP = new XMLHttpRequest(); 
	   objHTTP.open("POST", strUrl, false); 
	} 
   else if (window.ActiveXObject) 
	{ 
		objHTTP = new ActiveXObject("Microsoft.XMLHTTP"); 
		objHTTP.open("POST", strUrl, false, "", ""); 
} 

	
   objHTTP.setRequestHeader("Content-type", "application/x-www-form-urlencoded"); 

   objHTTP.send(strXMLvariables); 

   resp = objHTTP.responseText; 

   objHTTP = null; 

   return resp; 
}