var http = createXMLHttpRequest();
var http2 = createXMLHttpRequest();

<!-- Create XML Request object -->
function createXMLHttpRequest() 
{
	var ua;
	if(window.XMLHttpRequest)
	{
		try
		{
			ua = new XMLHttpRequest();
		}
		catch(e)
		{
			ua = false;
		}
	}
	else if(window.ActiveXObject) 
	{
		try
		{
			ua = new ActiveXObject('Microsoft.XMLHTTP');
		} 
		catch(e)
		{
			ua = false;
		}
	}
	return ua;
}