My Ajax And Jquery Ajax

[Guest FirefoxRocks]

Which function is better in terms of security, compatibility and functionality?My functions:

function XMLHttpFactories() {	return [		function () {return new XMLHttpRequest();},		function () {return new ActiveXObject("Msxml2.XMLHTTP");},		function () {return new ActiveXObject("Msxml3.XMLHTTP");},		function () {return new ActiveXObject("Microsoft.XMLHTTP");}	];}function createXMLHTTPObject() {	var xmlhttp = false;	var factories = new XMLHttpFactories();	for (var i=0; i<factories.length; i=i+1) {		try { xmlhttp = factories[i](); }		catch (e) { continue; }		break;	}	return xmlhttp;}var xmlhttp = new createXMLHTTPObject();function stateChanged(id){	if (xmlhttp.readyState===4){		$("#"+id).html("");		$("#"+id).html(xmlhttp.responseText);	}}function getSomething(id){// this is the specific function to do something	if (!xmlhttp) { return;	}		var url="somepage.php?id="+id+"&sid="+Math.random();	xmlhttp.open("GET",url,true);	xmlhttp.onreadystatechange = function() { stateChanged("container"); };	xmlhttp.send(null);}

jQuery code:http://code.jquery.com/jquery.jsand

<script type='text/javascript'>	$.get("somepage.php", { id: $('#some_select_box').val() }, function(data){		$("#container").html(data);		// some more stuff to do upon receiving data	}, "html");</script>

More info on jQuery AJAX can be found here: http://docs.jquery.com/AjaxPersonally I think the jQuery version should be better because I trust jQuery and it seems more compatible but what are your opinions?