// *
// * ajax.js
// *
// * Andrew Matthews
// * DMR Limited
// * December 2005
// *
// * vers 1.1 AJM 06/12/2005
// * vers 1.2 AJM 06/12/2005 Append the noCache variable to the url
// *
var requestObject, goodBrowser;
// only the first 4 fields are mandatory
function getUrl(method, url, async, callback, content, usrname, pword) {
	if (arguments.length < 4) return 2;
	if (window.XMLHttpRequest) {
		requestObject = new XMLHttpRequest();
		goodBrowser=1;
	}else{
		if (window.ActiveXObject) {
			goodBrowser=0;
			try {
				requestObject = new ActiveXObject("Msxml2.XMLHTTP");
			} catch (e) {
				try {
					requestObject = new ActiveXObject("Microsoft.XMLHTTP");
				} catch (e) {
					requestObject = false;
				}
			}
		}else requestObject=false;
	}

	if (requestObject) {
		requestObject.onreadystatechange = callback;
		// Avoid cache hits by appending a variable with the epoch milliseconds in it
		var now=new Date(); 
		if (url.indexOf("?") == -1) url=url + '?noCache=' + now.getTime();
		else url=url + '&noCache=' + now.getTime();
		requestObject.open(method, url, async, usrname, pword);
		if (goodBrowser && !content) content=null;
		requestObject.send(content);
		return 0;
	}else return 1;
}