var xmlhttp = false;
try {
	xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
	} catch (e) {
		try {
			xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
		} catch (E) {
			xmlhttp = false;
		}
}
if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
xmlhttp = new XMLHttpRequest();
}
function show_pro(objID) {
var serverPage = "pages/pro.php?status=plus";
var obj = document.getElementById(objID);
xmlhttp.open("GET", serverPage);
xmlhttp.onreadystatechange = function() {
	if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
		obj.innerHTML = xmlhttp.responseText;
	}
}
xmlhttp.send(null);
}

function show_pre(objID) {
var serverPage = "pages/pro.php?status=minus";
var obj = document.getElementById(objID);
xmlhttp.open("GET", serverPage);
xmlhttp.onreadystatechange = function() {
	if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
		obj.innerHTML = xmlhttp.responseText;
	}
}
xmlhttp.send(null);
}