function getXmlHttp()
{
	var xmlHttp;
	try {
		// Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
	}
	catch (e) {
		// Internet Explorer
		try {
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e) {
			try	{
				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch (e) {
				alert("Your browser does not support AJAX!");
				return false;
			}
		}
	}
	return xmlHttp;
}

function addPost() {
	var ajax = getXmlHttp();
	var item = document.getElementById("txtInput").value;
	var params = "txtNew=" + encodeURIComponent(item);
	ajax.open("POST", "post.php", false);

	ajax.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	ajax.setRequestHeader("Content-length", params.length);
	ajax.setRequestHeader("Connection", "close");
	
	ajax.send(params);
	
	//alert('added');

	//alert(ajax.responseText);
	
	document.getElementById("newthings").innerHTML += item + "<br/>";			
	document.getElementById("txtInput").value = "";
}

function inputKeyPress(e) {
	var keynum = 0;
	if (window.event) {
		keynum = e.keyCode;
	}
	else if (e.which) {
		keynum = e.which;
	}
	if (keynum == 13) {
		addPost();
		return false;
	}
	else {
		return true;
	}
	
}