function FormataCNPJ(pForm,pCampo,pTamMax,pPos1,pPos2,pPosbarra,pPosTraco,pTeclaPres){
 var wTecla, wVr, wTam;
 
       // alert(pForm[pCampo].value);
  
 wTecla = pTeclaPres.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, 3) + '/' + wVr.substr(wTam - pPosbarra, wTam);
  }
  pForm[pCampo].value = wVr;
 
 }

}