function doGetCaretPosition (oField) {

     // Initialize
     var iCaretPos = 0;

     // IE Support
     if (document.selection) { 

       // Set focus on the element
       oField.focus ();
  
       // To get cursor position, get empty selection range
       var oSel = document.selection.createRange ();
  
       // Move selection start to 0 position
       oSel.moveStart ('character', -oField.value.length);
  
       // The caret position is selection length
       iCaretPos = oSel.text.length;
     }

     // Firefox support
     else if (oField.selectionStart || oField.selectionStart == '0')
       iCaretPos = oField.selectionStart;

     // Return results
     return (iCaretPos);
   }


   /*
   **  Sets the caret (cursor) position of the specified text field.
   **  Valid positions are 0-oField.length.
   */
   function doSetCaretPosition (oField, iCaretPos) {

     // IE Support
     if (document.selection) { 

       // Set focus on the element
       oField.focus ();
  
       // Create empty selection range
       var oSel = document.selection.createRange ();
  
       // Move selection start and end to 0 position
       oSel.moveStart ('character', -oField.value.length);
  
       // Move selection start and end to desired position
       oSel.moveStart ('character', iCaretPos);
       oSel.moveEnd ('character', 0);
       oSel.select ();
     }

     // Firefox support
     else if (oField.selectionStart || oField.selectionStart == '0') {
       oField.selectionStart = iCaretPos;
       oField.selectionEnd = iCaretPos;
       oField.focus ();
     }
   }

function mudaCampo(objEvent, campoAtual, tamTotal, campoProx) {
	var e = window.event;
	if(objEvent){
		e = objEvent;
	}
	
	var code;
	if (e.keyCode) code = e.keyCode;
	else if (e.which) code = e.which;

	if(code!=37 && code!=38 && code!=39 && code!=40 && code !=13 && code!=9 && code!=16 && code!=17) {
		if(campoProx) {
			if (campoAtual.value.length == tamTotal) {
				campoProx.focus();
			}
		}
	}
}	

function getCaretPos(el) { 
    var rng, ii=-1; 
    if(typeof el.selectionStart=="number") { 
      ii=el.selectionStart; 
    } else if (document.selection && el.createTextRange){ 
      rng=document.selection.createRange(); 
      rng.collapse(true); 
      rng.moveStart("character", -el.value.length); 
      ii=rng.text.length; 
    } 
    return ii; 
} 


function valida_cpf(cpf)
      {
      var numeros, digitos, soma, i, resultado, digitos_iguais;
      digitos_iguais = 1;
      if (cpf.length < 11)
            return false;
      for (i = 0; i < cpf.length - 1; i++)
            if (cpf.charAt(i) != cpf.charAt(i + 1))
                  {
                  digitos_iguais = 0;
                  break;
                  }
      if (!digitos_iguais)
            {
            numeros = cpf.substring(0,9);
            digitos = cpf.substring(9);
            soma = 0;
            for (i = 10; i > 1; i--)
                  soma += numeros.charAt(10 - i) * i;
            resultado = soma % 11 < 2 ? 0 : 11 - soma % 11;
            if (resultado != digitos.charAt(0))
                  return false;
            numeros = cpf.substring(0,10);
            soma = 0;
            for (i = 11; i > 1; i--)
                  soma += numeros.charAt(11 - i) * i;
            resultado = soma % 11 < 2 ? 0 : 11 - soma % 11;
            if (resultado != digitos.charAt(1))
                  return false;
            return true;
            }
      else
            return false;
      }

      
function FormataCPF(pForm,pCampo,pTamMax,pPos1,pPos2,pPosTraco,pTeclaPres){
 var wTecla, wVr, wTam;
 var e = window.event;
	if(pTeclaPres){
		e = pTeclaPres;
	}
	
 wTecla = e.keyCode;
 wVr = pForm[pCampo].value;
 wVr = wVr.toString().replace( "-", "" );
 wVr = wVr.toString().replace( ".", "" );
 wVr = wVr.toString().replace( ".", "" );
 wVr = wVr.toString().replace( "/", "" );
 wTam = wVr.length ;

 if (wTam < pTamMax && wTecla != 8) { 
    wTam = wVr.length + 1 ; 
 }

 if (wTecla == 8 ) { 
    wTam = wTam - 1 ; 
 }
   
 if ( wTecla == 8 || wTecla == 88 || wTecla >= 48 && wTecla <= 57 || wTecla >= 96 && wTecla <= 105 ){
  if ( wTam <= 2 ){
    pForm[pCampo].value = wVr ;
  }
  if (wTam > pPosTraco && wTam <= pTamMax) {
        wVr = wVr.substr(0, wTam - pPosTraco) + '-' + wVr.substr(wTam - pPosTraco, wTam);
  }
  if ( wTam == pTamMax){
        wVr = wVr.substr( 0, wTam - pPos1 ) + '.' + wVr.substr(wTam - pPos1, 3) + '.' + wVr.substr(wTam - pPos2, wTam);
  }
  pForm[pCampo].value = wVr;
 
 }
}
function getCpfFormatado(cpfSemFmt) {
  var wVr = cpfSemFmt;
  var wTam = wVr.length;
  var pPos1 = 8;
  var pPos2 = 5;
  var pPosTraco = 2;
  var pTamMax = 11;
  var ret;
  
  if ( wTam <= 2 ){
    ret = wVr ;
  }
  if (wTam > pPosTraco && wTam <= pTamMax) {
        ret = wVr.substr(0, wTam - pPosTraco) + '-' + wVr.substr(wTam - pPosTraco, wTam);
  }
  if ( wTam == pTamMax){
        ret = wVr.substr( 0, wTam - pPos1 ) + '.' + wVr.substr(wTam - pPos1, 3) + '.' + wVr.substr(wTam - pPos2, 3) + '-' + wVr.substr(wTam - pPosTraco, wTam);
  }
  return ret;
}

function isInteger (s)
   {
      var i;

      if (isEmpty(s))
      if (isInteger.arguments.length == 1) return 0;
      else return (isInteger.arguments[1] == true);

      for (i = 0; i < s.length; i++)
      {
         var c = s.charAt(i);

         if (!isDigit(c)) return false;
      }

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

function isDigit (c) {
   return ((c >= "0") && (c <= "9"))
}
function unlpad(str, c) {
	var nova = str;
	while(nova.charAt(0)==c) {
		if(nova.length==0){
			break;
		}
		nova = nova.substring(1);
	}
}