function sendAjaxRequest(url, responseElementID)
{
	sendAjaxRequest(url, responseElementID, -1);
}

function sendAjaxRequest(url, responseElementID, maximumResponseElementHeight)
{
	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, which is required. Please upgrade your browser.");
				return false;
			}
		}
	}
	
	xmlHttp.onreadystatechange = function()
	{
		if (xmlHttp.readyState == 4)
		{
			responseElement = document.getElementById(responseElementID);
			responseElement.innerHTML = xmlHttp.responseText;
			
			if (maximumResponseElementHeight > -1)
			{
				if (responseElement.scrollHeight > maximumResponseElementHeight) responseElement.style.height = maximumResponseElementHeight + "px";
				else responseElement.style.height = "auto";
			}
		}
	};
	
	xmlHttp.open("GET", url, true);
	xmlHttp.send(null);
}