// MASCARA PARA CAMPOS DE FORMULÁRIO
function txtBoxFormat(objForm, strField, sMask, evtKeyPress) {
	var i, nCount, sValue, fldLen, mskLen,bolMask, sCod, nTecla;

	if(document.all) { // Internet Explorer
		nTecla = evtKeyPress.keyCode; }
	else {
	//if(document.layers) { // Nestcape
		nTecla = evtKeyPress.which;
	}

	sValue = objForm[strField].value;
	
	// Limpa todos os caracteres de formata�o que
	// j�estiverem no campo.
	sValue = sValue.toString().replace( "-", "" );
	sValue = sValue.toString().replace( "-", "" );
	sValue = sValue.toString().replace( ".", "" );
	sValue = sValue.toString().replace( ".", "" );
	sValue = sValue.toString().replace( "/", "" );
	sValue = sValue.toString().replace( "/", "" );
	sValue = sValue.toString().replace( "(", "" );
	sValue = sValue.toString().replace( "(", "" );
	sValue = sValue.toString().replace( ")", "" );
	sValue = sValue.toString().replace( ")", "" );
	sValue = sValue.toString().replace( " ", "" );
	sValue = sValue.toString().replace( " ", "" );
	fldLen = sValue.length;
	mskLen = sMask.length;
	
	i = 0;
	nCount = 0;
	sCod = "";
	mskLen = fldLen;
	

	// Caso seja pressionado backspace, ent� ignora a verifica�o da m�cara
	if (nTecla !=8){
	   while (i <= mskLen) {
		  bolMask = ((sMask.charAt(i) == "-") || (sMask.charAt(i) == ".") || (sMask.charAt(i) == "/"))
		  bolMask = bolMask || ((sMask.charAt(i) == "(") || (sMask.charAt(i) == ")") || (sMask.charAt(i) == " "))
	
		  if (bolMask) {
			 sCod += sMask.charAt(i);
			 mskLen++; 
		  } else {
			 sCod += sValue.charAt(nCount);
		     nCount++;
		  }
	
	       i++;
	   }	
		
	   objForm[strField].value = sCod;
	   
	}
	if (nTecla != 8) { // backspace
		if (sMask.charAt(i-1) == "9") { // apenas nmeros...
			return ((nTecla > 47) && (nTecla < 58)); 
		} // nmeros de 0 a 9
		else { // qualquer caracter...
			return true;
		} 
	} else {
		return true;
	}
}








// MASCARA PARA FORMATAR CAMPOS DE FORMULÁRIO DO TIPO MOEDA


function limparMoeda(valor, validos) {

// retira caracteres invalidos da string
   var result = "";
   var aux;
   for (var i=0; i < valor.length; i++) {
	aux = validos.indexOf(valor.substring(i, i+1));
	if (aux>=0) {
	   result += aux;
	}	
   }
   return result;
}



//Formata número tipo moeda usando o evento onKeyDown

function formataMoeda(campo,tammax,teclapres,decimal) {
   
   var tecla = teclapres.keyCode;
   vr = limparMoeda(campo.value,"0123456789");
   tam = vr.length;
   dec=decimal

   if (tam < tammax && tecla != 8){ tam = vr.length + 1 ; }

   if (tecla == 8 ){ tam = tam - 1 ; }

   if ( tecla == 8 || tecla >= 48 && tecla <= 57 || tecla >= 96 && tecla <= 105 ){

      if ( tam <= dec ){ campo.value = vr ; }

      if ( (tam > dec) && (tam <= 5) ){
	campo.value = vr.substr( 0, tam - 2 ) + "," + vr.substr( tam - dec, tam ) ; 
      }
      if ( (tam >= 6) && (tam <= 8) ){
	campo.value = vr.substr( 0, tam - 5 ) + "." + vr.substr( tam - 5, 3 ) + "," + vr.substr( tam - dec, tam ) ;
      }
      if ( (tam >= 9) && (tam <= 11) ){
	campo.value = vr.substr( 0, tam - 8 ) + "." + vr.substr( tam - 8, 3 ) + "." + vr.substr( tam - 5, 3 ) + "," + vr.substr( tam - dec, tam ) ; 
      }
      if ( (tam >= 12) && (tam <= 14) ){
	campo.value = vr.substr( 0, tam - 11 ) + "." + vr.substr( tam - 11, 3 ) + "." + vr.substr( tam - 8, 3 ) + "." + vr.substr( tam - 5, 3 ) + "," + vr.substr( tam - dec, tam ) ; 
      }
      if ( (tam >= 15) && (tam <= 17) ){
	campo.value = vr.substr( 0, tam - 14 ) + "." + vr.substr( tam - 14, 3 ) + "." + vr.substr( tam - 11, 3 ) + "." + vr.substr( tam - 8, 3 ) + "." + vr.substr( tam - 5, 3 ) + "," + vr.substr( tam - 2, tam ) ;
      }
   }

}