function FormataCNPJ(CNPJ, teclapres){

   if(window.event){
    var tecla = teclapres.keyCode;
   }else  tecla = teclapres.which;

   var vr = new String(CNPJ.value);
   vr = vr.replace(".", "");
   vr = vr.replace(".", "");
   vr = vr.replace("/", "");
   vr = vr.replace("-", "");

   tam = vr.length + 1;

   
   if (tecla != 9 && tecla != 8){
      if (tam > 2 && tam < 6)
         CNPJ.value = vr.substr(0, 2) + '.' + vr.substr(2, tam);
      if (tam >= 6 && tam < 9)
         CNPJ.value = vr.substr(0,2) + '.' + vr.substr(2,3) + '.' + vr.substr(5,tam-5);
      if (tam >= 9 && tam < 13)
         CNPJ.value = vr.substr(0,2) + '.' + vr.substr(2,3) + '.' + vr.substr(5,3) + '/' + vr.substr(8,tam-8);
      if (tam >= 13 && tam < 15)
         CNPJ.value = vr.substr(0,2) + '.' + vr.substr(2,3) + '.' + vr.substr(5,3) + '/' + vr.substr(8,4)+ '-' + vr.substr(12,tam-12);
 {
  var tecla = window.event.keyCode;
  tecla     = String.fromCharCode(tecla);
  if(!((tecla >= "0") && (tecla <= "9")))
  {
    window.event.keyCode = 0;
  }



}
}
}


//valida o CNPJ digitado
function ValidarCNPJ(CNPJ){

    var cnpj = CNPJ.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 ((digito == '00000000000') || (digito == '11111111111') || (digito == '22222222222') || (digito == '33333333333') ||
           (digito == '44444444444') || (digito == '55555555555') || (digito == '66666666666') || (digito == '77777777777') ||
           (digito == '88888888888') || (digito == '99999999999') ||    (digito == '01234567890') || (digito == '12345678909')) {
               alert('CNPJ Invalido!'); 
return false;  

CNPJ.focus();
          
}else{

if(((dig1*10)+dig2) != digito){    
        alert('CNPJ Invalido!');
        CNPJ.focus();
        return false;
        }else{
        return true;
}       
}
}