// JavaScript Document
function setmessage(message, value) {
	var messageArea = document.getElementById("nameMessage");
	var fontcolor = "red";
	if ( value == "true" ) {
		var fontcolor = "green";
	}
	messageArea.innerHTML = "<font color=" + fontcolor + ">" + message + "</font>";
}

function callback() {
	if (xmlHttp.readyState == 4) {
		if (xmlHttp.status == 200) {
			var msg = xmlHttp.responseXML.getElementsByTagName("message")[0].firstChild.data;
			var value = xmlHttp.responseXML.getElementsByTagName("passed")[0].firstChild.data;
			setmessage(msg, value);
		}
	}
}

function validate_text() {
	createXMLHttpRequest();
	var pre_data = document.getElementById("name");
	var data = "index.php?pid=12&sid=text&sid2=" + escape(pre_data.value);
	xmlHttp.open("GET", data, true);
	xmlHttp.onreadystatechange = callback;
	xmlHttp.send(null);
}