/**
 * @author Gastón Furini
 */

function createAjax(){
	var xmlhttp = false;
	try{
		xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
	}catch(e){
		try{
			xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
		}catch(e){
			if(typeof XMLHttpRequest != "undefined"){
				xmlhttp = new XMLHttpRequest();
			}else{ 
				throw "eNoCreate";
			}
		}
	}
	return xmlhttp;
}