try{
    xmlhttp = new XMLHttpRequest();
}catch(ee){
    try{
        xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
    }catch(e){
        try{
            xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
        }catch(E){
            xmlhttp = false;
        }
    }
}

function formataCep(){
	cepL = document.formCep.cep.value.length;
	cep = document.formCep.cep.value.replace("-","");
	for(i=0; i<=cepL; i++){
		cep = cep.replace("-","");
	}
	query(cep)
}


function query(cep){
	document.formCep.cep.value = "...carregando";
	document.getElementById("cepIn").disabled = true;
	document.getElementById("btn_enviar").disabled = true;
	
	url = "home.php?opc=meio_cadastro&cep="+cep;
	xmlhttp.open("GET", url, true);
	xmlhttp.onreadystatechange=function() {
	    if (xmlhttp.readyState==4){
		    document.getElementById("resultado").style.display = 'block';
			document.getElementById("resultado").innerHTML = xmlhttp.responseText;	
			document.getElementById("cepIn").disabled = false;
			document.getElementById("btn_enviar").disabled = false;	
			document.formCep.cep.value = "";			

	    }
	}
	 xmlhttp.send(null)
}