function showLoading() {
	var img_loading = document.getElementById("img_loading");
	var btn_submit = document.getElementById("btn_submit");
	img_loading.style.display = "block";
	btn_submit.style.display = "none";
}

function showLoading2() {
	var img_loading2 = document.getElementById("img_loading2");
	var btn_submit2 = document.getElementById("btn_submit2");
	img_loading2.style.display = "block";
	btn_submit2.style.display = "none";
}