function VerificaCEP(cep) {
	var rangeinvalido = /[^0-9]/
	var rangenumeros = /[0-9]/
	pos=cep.length
	i=0
	while (i<pos) {
		cep=cep.substring(0,i)+cep.substring(i,i+1).replace(rangeinvalido,"")+cep.substring(i+1,pos)
		i++;
	}
	mascaracep=cep
	i=0
	while (i<8) {
		mascaracep=mascaracep.substring(0,i)+mascaracep.substring(i,i+1).replace(rangenumeros,"9")+mascaracep.substring(i+1,8)
		i++
	}
	if (! (mascaracep=="99999999")){
		return false;
	}
	return true;
}