function buildXmlHttp()
{
	var xmlHttp;
	try
	{
		xmlHttp=new XMLHttpRequest();
	}
	catch (e)
	{
		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 rse_calendar_change_month(address)
{
	xml=buildXmlHttp();
	xml.onreadystatechange=function()
    {
		if(xml.readyState==4)
		{
			document.getElementById('rsevents_calendar_module').innerHTML = xml.responseText;
			if (MooTools.version == '1.12')
				$$('.tool-tip').each(function (el) { $(el).remove(); });
			else
			{
				$$('.tip-wrap').each(function (el) { $(el).destroy(); });
					$$('.hasTip').each(function(el) {
					var title = el.get('title');
					if (title) {
						var parts = title.split('::', 2);
						el.store('tip:title', parts[0]);
						el.store('tip:text', parts[1]);
					}
				});
			}
			
			var JTooltips = new Tips($$('.hasTip'), { maxTitleChars: 50, fixed: false});
		}
    }
	xml.open('GET',address, true);
	xml.send(null);
}