function XMLHttpRequests() {
	var req;
	try {
		req = new XMLHttpRequest();
		} 
	catch(err1) {
		try {
			req = new ActiveXObject("Msxml2.XMLHTTP");
		} 
		catch (err2) 
			{
				try {
					req = new ActiveXObject("Microsoft.XMLHTTP");
				} catch (err3) {
				req = false;
				}
			}
	}
	return req;
}