var http = new XMLHttpRequest();

function checkUsername()
{
	username	= document.getElementById('username').value
	
	var url = "http://www.organizemydad.com/includes/check_username.php";
	var params = "username="+username;
	http.open("POST", url, true);
	//prompt("",url);
	
	//Send the proper header information along with the request
	http.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	http.setRequestHeader("Content-length", params.length);
	http.setRequestHeader("Connection", "close");
	
	http.onreadystatechange = function() 
	{
		if(http.readyState == 4 && http.status == 200) 
		{
			//alert(http.responseText);
			document.getElementById('username_status').innerHTML = http.responseText;
		}
	}
	
	http.send(params);
}