var aj = new Object();
aj.createXMLHttpRequest = function() {
	var request = false;
	if(window.ActiveXObject) {
		var versions = ['Microsoft.XMLHTTP', 'MSXML.XMLHTTP', 'Microsoft.XMLHTTP', 'Msxml2.XMLHTTP.7.0', 'Msxml2.XMLHTTP.6.0', 'Msxml2.XMLHTTP.5.0', 'Msxml2.XMLHTTP.4.0', 'MSXML2.XMLHTTP.3.0', 'MSXML2.XMLHTTP'];
		for(var i=0; i<versions.length; i++) {
			try {
				request = new ActiveXObject(versions[i]);
				if(request) {
					return request;
				}
			} catch(e) {}
		}
	}else if(window.XMLHttpRequest) {
		request = new XMLHttpRequest();
		if(request.overrideMimeType) {
			request.overrideMimeType('text/xml');
		}
	}
	if (!request){
        alert('Cannot create an XMLHTTP instance');
        return false;
    }
	return request;
}
aj.XMLHttpRequest = aj.createXMLHttpRequest();

function $(id)
{
	return document.all[id];
}