// IE seems to be caching GET requests, add a garbage parameter, to ensure the query string changes.
function nocache(url){
	if(url.indexOf('?')>=0) {
		return url + '&garbage='+ Math.random();
	}else{
		return url + '?garbage='+ Math.random();
	}
}

// Create a HTTP Request, which works cross browser.
function createRequest(){
	var request = null;
	try {
		request = new XMLHttpRequest();
	} catch (trymicrosoft) {
		try {
			request = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (othermicrosoft) {
			try {
				request = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (failed) {
				alert('Din browser er ikke understøttet. Opdater venligst din browser.');
			}
		}
	}
	
	if(request != null){
		return request;
	}
}