//-------------------------------------------------------------------
function validaemail(email)
{
   parte1 = email.value.indexOf("@");
   parte2 = email.value.indexOf(".");
   parte3 = email.value.length;
   if (!(parte1 >= 3 && parte2 >= 6 && parte3 >= 9))
   {
     alert ("E-mail inválido!");
     email.focus();
     return false;
   }
   return(true);
}
//---------------------------------------------------------------------------
function isNUMB(c)
{
 if((cx=c.indexOf(","))!=-1)
 {
  c = c.substring(0,cx)+"."+c.substring(cx+1);
 }
 if((parseFloat(c) / c != 1))
 {
  if(parseFloat(c) * c == 0)
  {
  return(1);
  }
  else
  {
   return(0);
  }
 }
 else
 {
 return(1);
 }
}

function LIMP(c)
{
 while((cx=c.indexOf("-"))!=-1)
  {
  c = c.substring(0,cx)+c.substring(cx+1);
  }
 while((cx=c.indexOf("/"))!=-1)
  {
  c = c.substring(0,cx)+c.substring(cx+1);
  }
 while((cx=c.indexOf(","))!=-1)
  {
  c = c.substring(0,cx)+c.substring(cx+1);
  }
 while((cx=c.indexOf("."))!=-1)
  {
  c = c.substring(0,cx)+c.substring(cx+1);
  }
 while((cx=c.indexOf("("))!=-1)
  {
  c = c.substring(0,cx)+c.substring(cx+1);
  }
 while((cx=c.indexOf(")"))!=-1)
  {
  c = c.substring(0,cx)+c.substring(cx+1);
  }
 while((cx=c.indexOf(" "))!=-1)
  {
  c = c.substring(0,cx)+c.substring(cx+1);
  }
 return(c);
 }

function VerifyCNPJ(CNPJ)
 {
 CNPJ = LIMP(CNPJ);
 if(isNUMB(CNPJ) != 1)
  {
  return(0);
  }
 else
  {
  if(CNPJ == 0)
   {
   return(0);
   }
  else
   {
   g=CNPJ.length-2;
   if(RealTestaCNPJ(CNPJ,g) == 1)
    {
    g=CNPJ.length-1;
    if(RealTestaCNPJ(CNPJ,g) == 1)
     {
     return(1);
     }
    else
     {
     return(0);
     }
    }
   else
    {
    return(0);
    }
   }
  }
 }
//-------------------------------------------------------------------
function RealTestaCNPJ(CNPJ,g)
 {
 var VerCNPJ=0;
 var ind=2;
 var tam;
 for(f=g;f>0;f--)
  {
  VerCNPJ+=parseInt(CNPJ.charAt(f-1))*ind;
  if(ind>8)
   {
   ind=2;
   }
  else
   {
   ind++;
   }
  }
  VerCNPJ%=11;
  if(VerCNPJ==0 || VerCNPJ==1)
   {
   VerCNPJ=0;
   }
  else
   {
   VerCNPJ=11-VerCNPJ;
   }
 if(VerCNPJ!=parseInt(CNPJ.charAt(g)))
  {
  return(0);
  }
 else
  {
  return(1);
  }
 }
//-------------------------------------------------------------------

function FormataCGC(Formulario, Campo, TeclaPres)
{
    var tecla = TeclaPres.keyCode;
    var strCampo;
    var vr;
    var tam;
    var TamanhoMaximo = 14;

    eval("strCampo = document." + Formulario + "." + Campo);

    vr = strCampo.value;
    vr = vr.replace("/", "");
    vr = vr.replace("/", "");
    vr = vr.replace("/", "");
    vr = vr.replace(",", "");
    vr = vr.replace(".", "");
    vr = vr.replace(".", "");
    vr = vr.replace(".", "");
    vr = vr.replace(".", "");
    vr = vr.replace(".", "");
    vr = vr.replace(".", "");
    vr = vr.replace(".", "");
    vr = vr.replace("-", "");
    vr = vr.replace("-", "");
    vr = vr.replace("-", "");
    vr = vr.replace("-", "");
    vr = vr.replace("-", "");
    tam = vr.length;

    if (tam < TamanhoMaximo && 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 <= 2)
      {
          strCampo.value = vr;
      }
       if ((tam > 2) && (tam <= 6))
       {
         strCampo.value = vr.substr(0, tam - 2) + '-' + vr.substr(tam - 2, tam);
       }
       if ((tam >= 7) && (tam <= 9))
       {
         strCampo.value = vr.substr(0, tam - 6) + '/' + vr.substr(tam - 6, 4) + '-' + vr.substr(tam - 2, tam);
      }
       if ((tam >= 10) && (tam <= 12))
       {
         strCampo.value = vr.substr(0, tam - 9) + '.' + vr.substr(tam - 9, 3) + '/' + vr.substr(tam - 6, 4) + '-' + vr.substr(tam - 2, tam);
      }
       if ((tam >= 13) && (tam <= 14))
       {
         strCampo.value = vr.substr(0, tam - 12) + '.' + vr.substr(tam - 12, 3) + '.' + vr.substr(tam - 9, 3) + '/' + vr.substr(tam - 6, 4) + '-' + vr.substr(tam - 2, tam);
       }
       if ((tam >= 15) && (tam <= 17))
       {
         strCampo.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);
       }
     }
  }

//-------------------------------------------------------------------
 function testaCNPJ(campo_cnpj)
 {
  if(VerifyCNPJ(campo_cnpj.value) == 1)
  {
  return(true);
  }
 else
  {
  alert("CNPJ não é válido!");
  return(false);
  }
 campo_cnpj.focus();
}
//-------------------------------------------------------------------