function setValue(value, id) {
	if(id == "nome" && value == "nome") {
		document.getElementById("txtNome").value = "";
	}
	if(id == "nome" && value == "") {
		document.getElementById("txtNome").value = "nome";
	}
	if(id == "e-mail" && value == "e-mail") {
		document.getElementById("txtEmail").value = "";
	}
	if(id == "e-mail" && value == "") {
		document.getElementById("txtEmail").value = "e-mail";
	}
}