// JavaScript Document

var http_request = false;
function makePOSTRequest(url, parameters) {
	http_request = false;
	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		http_request = new XMLHttpRequest();
		if (http_request.overrideMimeType) {
			// set type accordingly to anticipated content type
			//http_request.overrideMimeType('text/xml');
			http_request.overrideMimeType('text/html');
			http_request.overrideMimeType("text/html; charset=UTF-8");
		}
	} else if (window.ActiveXObject) { // IE
		try {
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				http_request = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {}
		}
	}
	if (!http_request) {
		alert('Cannot create XMLHTTP instance');
		return false;
	}
	
	
	http_request.onreadystatechange = alertContents;
	http_request.open('GET', url + "?" + parameters, true);
	http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	http_request.setRequestHeader("Content-length", parameters.length);
	http_request.setRequestHeader("Connection", "close");
	http_request.send(null);
}

function alertContents() {
	if (http_request.readyState == 4) {
		var spanRes = document.getElementById('resultSpan');
		if (http_request.status == 200 || http_request.statusText == "OK") {
			//alert(http_request.responseText);
			configureElement(spanRes, "Votre message a été envoyé avec succès.",{display:"block", color:"#92D050"});
		} else {
			configureElement(spanRes, "Une erreur est survenue, essayez ultérieurement.",{display:"block", color:"#ff0000"});
		}
	}
}

function get(form) {
	configureElement(document.getElementById('resultSpan'), "",{display:"none"});
	var poststr = "";
	for(var i = 0; i < form.elements.length; i += 1) {
		var elt = form.elements[i];
		poststr += elt.name + "=" + encodeURI( elt.value ) + "&";	
	}
	poststr = poststr.substr(0,poststr.length - 1);
	makePOSTRequest(servletURL, poststr);
}