// JavaScript Document
function ajaxFunction() {
	var rta = false;
	if (window.XMLHttpRequest)
	{
		rta = new XMLHttpRequest();	
	}
	else
	{
		if(ActiveXObject)
		{
			var ieVersiones = ["MSXML2.XMLHttp.5.0", "MSXML2.XMLHttp.4.0", "MSXML2.XMLHttp.3.0", "MSXML2.XMLHttp", "Microsoft.XMLHttp"];
		}
		
		for(var i=0; i < ieVersiones.length; i++)
		{
			try
			{
				rta = new ActiveXObject(ieVersiones[i]);
			}
			catch (e){}
		}
	}
	
	return rta;
}